CN113877935A - Garbage recycling system and garbage recycling method - Google Patents
Garbage recycling system and garbage recycling method Download PDFInfo
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- CN113877935A CN113877935A CN202111163249.0A CN202111163249A CN113877935A CN 113877935 A CN113877935 A CN 113877935A CN 202111163249 A CN202111163249 A CN 202111163249A CN 113877935 A CN113877935 A CN 113877935A
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 82
- 238000004064 recycling Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 136
- 239000007787 solid Substances 0.000 claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 63
- 238000012216 screening Methods 0.000 claims abstract description 62
- 238000003860 storage Methods 0.000 claims abstract description 55
- 238000004537 pulping Methods 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000010865 sewage Substances 0.000 claims abstract description 44
- 238000000926 separation method Methods 0.000 claims abstract description 39
- 238000001035 drying Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000000855 fermentation Methods 0.000 claims abstract description 30
- 230000004151 fermentation Effects 0.000 claims abstract description 30
- 230000018044 dehydration Effects 0.000 claims abstract description 29
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 29
- 239000004519 grease Substances 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 239000003516 soil conditioner Substances 0.000 claims abstract description 16
- 239000012065 filter cake Substances 0.000 claims abstract description 14
- 239000000047 product Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 33
- 239000002893 slag Substances 0.000 claims description 29
- 239000002699 waste material Substances 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000010564 aerobic fermentation Methods 0.000 claims description 15
- 239000003225 biodiesel Substances 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 5
- 239000010806 kitchen waste Substances 0.000 description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000002245 particle Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 230000003750 conditioning effect Effects 0.000 description 6
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- 235000013305 food Nutrition 0.000 description 3
- 239000002068 microbial inoculum Substances 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 210000003278 egg shell Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
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- 239000000919 ceramic Substances 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a garbage recycling treatment system and a garbage recycling treatment method, wherein the garbage recycling treatment system comprises a crushing and pulping unit and a slurry treatment unit; the crushing and pulping unit is provided with a material receiving and draining device, a percolate collecting device and a crushing and screening component, and heating steam output by a steam generating device of the slurry processing unit is conveyed to the slurry heating device and the fermentation drying device; the slurry storage device is communicated with the crushing and pulping unit and the slurry heating device; the slurry heating device is communicated with the oil-water residue separation device, and the oil-water residue separation device discharges oil-water residue to separate sewage, grease and solid residue; the filter-pressing dehydration device is communicated with the solid residue discharge port to discharge filter-pressing dehydration sewage and filter cakes, and the first sewage discharge port and the second sewage discharge port are communicated with the slurry storage device; the fermentation drying device is communicated with the filter cake outlet and is used for discharging tail gas condensate water and a soil conditioner or feed. The garbage recycling treatment system improves the recycling utilization rate.
Description
Technical Field
The invention relates to the technical field of garbage treatment equipment, in particular to a garbage recycling treatment system and a garbage recycling treatment method.
Background
The kitchen waste refers to waste generated in daily life and food processing, food service, unit catering and other activities of residents, and comprises abandoned vegetable leaves, leftovers, fruit peels, egg shells, tea leaves, bones and the like, and the main sources of the kitchen waste are household kitchens, restaurants, dining halls, markets and other industries related to food processing. The kitchen waste is also called wet waste and perishable waste, contains extremely high moisture and organic matters, is easy to decay and generates malodor.
The kitchen waste contains kitchen waste, household kitchen waste and other kitchen waste. Along with the kitchen waste separation amount is more and more, the kitchen waste amount is more and more, and the disposal difficulty is also more and more big.
At present, the energy utilization rate of the existing treatment process is low, the oil extraction rate is low, the valuable resources are not thoroughly recovered, and the resource utilization rate is low.
Therefore, how to improve the resource utilization rate is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a garbage recycling system and a garbage recycling method to improve the recycling utilization rate.
In order to achieve the purpose, the invention provides the following technical scheme:
a waste recycling system comprising:
the crushing and pulping unit is provided with a receiving and draining device, a percolate collecting device and a crushing and screening assembly, the receiving and draining device is provided with a receiving and draining inlet for garbage to be treated to enter, the solid output end of the receiving and draining device is communicated with the crushing and screening assembly, and the percolate output end of the receiving and draining device is communicated with the percolate inlet of the crushing and screening assembly;
the slurry treatment unit comprises a slurry storage device, a slurry heating device, an oil-water residue separation device, a filter-pressing dehydration device, a fermentation drying device and a steam generation device; the heating steam output by the steam generating device is conveyed to a heating fluid inlet of the slurry heating device and a heating fluid inlet of the fermentation drying device; the slurry storage device is provided with a crushing slurry inlet communicated with a crushing slurry outlet of the crushing and pulping unit, and a slurry outlet of the slurry storage device is communicated with a slurry inlet of the slurry heating device; the slurry outlet of the slurry heating device is communicated with the slurry inlet of the oil-water residue separation device, and the oil-water residue separation device is also provided with a first sewage outlet for discharging oil-water residue separation sewage, a grease outlet for discharging grease and a solid residue outlet for discharging solid residue; the filter-pressing dehydration device is provided with a filter-pressing material inlet communicated with the solid slag discharge port, a second sewage discharge port for discharging filter-pressing dehydration sewage and a filter cake outlet for discharging a filter cake; the fermentation drying device is provided with an aerobic fermentation inlet communicated with the filter cake outlet, a tail gas condensate outlet used for discharging tail gas condensate, and an aerobic fermentation outlet used for outputting a soil conditioner or feed.
Optionally, in the above garbage recycling system, the heated fluid outlet of the slurry heating device is communicated with the inlet of the steam generating device;
and/or a heating fluid outlet of the fermentation drying device is communicated with an inlet of the steam generating device.
Optionally, in the above garbage recycling system, the crushing and screening assembly includes:
the coarse separation device is provided with a coarse crushing device and a coarse screening device, the input end of the coarse crushing device is communicated with the solid output end of the received material draining device, and the coarse screening device is provided with a coarse screening inlet communicated with the output end of the coarse crushing device, a first oversize product outlet used for outputting coarse screening oversize products and an undersize product outlet used for outputting coarse screening undersize products;
the crushing pulping and sorting device is provided with a crushing pulping inlet communicated with the undersize outlet, a percolate inlet communicated with the output end of the percolate collecting device, a slurry outlet for outputting slurry and a second oversize outlet for outputting crushed pulping oversize;
the slurry homogenizing and sand removing device is provided with the crushing slurry preparing inlet, a slurry homogenizing inlet communicated with the slurry outlet and a sand outlet used for outputting sand grains.
Optionally, in the above garbage recycling system, the crushing and screening assembly further includes:
a waste storage device for storing incinerated and/or landfilled waste, the waste storage device having a waste inlet in communication with the sand outlet;
and the extrusion dehydration device is provided with an extrusion dehydration inlet communicated with the first oversize product outlet, an extrusion liquid outlet communicated with the crushing pulping inlet, a crushing pulping oversize product inlet communicated with the second oversize product outlet and an extrusion solid outlet communicated with the garbage inlet of the garbage storage device.
Optionally, in the above garbage recycling system, the crushing and screening component further includes a fine screening device, the undersize product after being screened by the fine screening device is a crushing and pulping liquid, the fine screening device has the crushing and pulping liquid outlet and a third oversize product outlet for outputting a fine screening and oversize product, and the third oversize product outlet is communicated with the crushing and pulping sorting device.
Optionally, the system for recycling waste further comprises a biogas generation unit for providing biogas to the steam generation device, and the steam generation device generates the steam by burning the biogas to heat water;
the methane generating unit comprises a homogenate modulation device, a thick liquid anaerobic device and a sewage treatment device;
the homogenizing and modulating device is provided with a homogenizing and modulating outlet, a homogenizing and modulating solid slag inlet communicated with a solid slag outlet of the oil-water slag separating device and a homogenizing and modulating slurry inlet communicated with the first sewage outlet and/or the second sewage outlet;
the thick liquid anaerobic device is provided with a biogas liquid output port for outputting biogas liquid, a thick liquid inlet communicated with the homogenate outlet and a first biogas outlet communicated with the biogas inlet of the steam generating device;
the sewage treatment device is provided with a biogas slurry inlet communicated with the biogas slurry output port and a second biogas outlet communicated with the biogas inlet of the steam generation device.
Optionally, in the above garbage recycling system, the slurry treatment unit further includes a solid slag storage device disposed between the solid slag discharge port and the filter-pressing material inlet;
the homogenate modulation solid slag inlet is communicated with the solid slag storage device;
the first biogas residue outlet of the concentrated slurry anaerobic device for outputting biogas residue and the second biogas residue outlet of the sewage treatment device for outputting biogas residue are communicated with the solid residue storage device.
Optionally, in the system for recycling garbage, the biogas generating unit further includes a biogas purifying and storing device;
the biogas purification and storage device is provided with a biogas inlet communicated with the first biogas outlet and the second biogas outlet, a first biogas outlet communicated with the biogas inlet of the steam generation device and a second biogas outlet used for combustion equipment.
The invention also provides a garbage recycling treatment method, which is characterized by comprising the following steps:
1) carrying out crushing and pulping operation on the garbage to be treated to generate slurry;
2) heating the slurry;
3) and carrying out oil-water residue separation on the heated slurry, taking the separated oil as biodiesel, and carrying out aerobic fermentation on the separated solid residue to generate a soil conditioner or feed.
Optionally, in the above garbage recycling system, in step 3), before the aerobic fermentation is performed on the solid residues, the solid residues are subjected to filter pressing and dehydration.
According to the technical scheme, the steam generating device burns combustion gas such as natural gas or methane to generate heating steam, and the heating steam is conveyed to the heating fluid inlet of the slurry heating device and the heating fluid inlet of the fermentation drying device, so that heat sources are provided for the slurry heating device and the fermentation drying device. The garbage to be treated is roughly divided into solid and liquid in the material receiving and draining device through the material receiving and draining device, the garbage to be treated enters the material receiving and draining device through the material receiving and draining inlet, after the material receiving and draining device performs material receiving and draining on the garbage to be treated, the solid part of the garbage to be treated is transmitted to the crushing and screening assembly through the solid output end of the material receiving and draining device, the percolate part of the garbage to be treated is transmitted to the percolate collecting device through the percolate output end of the material receiving and draining device, the crushing and screening assembly performs crushing and screening on the solid part of the garbage to be treated and is mixed with the percolate of the material receiving and draining device to form slurry, and the slurry is conveyed to the crushing and pulping liquid inlet of the slurry storage device through the crushing and pulping liquid outlet of the crushing and pulping unit; and then, the slurry enters a slurry heating device and is heated by heating steam, and then enters an oil-water residue separation device for separation, the separated grease is used as biodiesel, solid residues separated by the oil-water residue separation device enter a filter-pressing dehydration device for filter pressing, and then enter a fermentation drying device to be mixed with microbial inoculum, adjusting auxiliary materials and the like for aerobic fermentation (and drying) to generate a soil conditioner or feed, wherein heat sources required by the fermentation and drying of the fermentation drying device are heating steam. The garbage recycling treatment system provided by the embodiment of the invention effectively reduces discharged solid waste garbage, converts organic matters in garbage to be treated into a soil conditioner or feed to the maximum extent, and takes the separated grease as biodiesel to improve added-value products for improving soil or adjusting feed protein and improve the recycling utilization rate.
The invention also provides a garbage recycling treatment method, which has the same technical effects and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a garbage recycling system according to an embodiment of the present invention.
Detailed Description
The invention discloses a garbage recycling treatment system and a garbage recycling treatment method, which aim to improve the recycling utilization rate.
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a garbage recycling system, which includes a crushing and pulping unit and a slurry processing unit. The crushing and pulping unit is provided with a receiving draining device 1, a percolate collecting device 2 and a crushing and screening assembly, wherein the receiving draining device 1 is provided with a receiving draining inlet for allowing garbage z to be treated to enter, the solid output end of the receiving draining device 1 is communicated with the crushing and screening assembly, and the percolate output end of the receiving draining device 1 is communicated with the percolate inlet of the crushing and screening assembly; the slurry treatment unit comprises a slurry storage device 10, a slurry heating device 15, an oil-water residue separation device 16, a filter-pressing dehydration device 21, a fermentation drying device 23 and a steam generation device 20; the heating steam b output by the steam generating device 20 is transmitted to a heating fluid inlet of the slurry heating device 15 and a heating fluid inlet of the fermentation drying device 23; the slurry storage device 10 is provided with a crushing slurry inlet communicated with a crushing slurry outlet of the crushing and pulping unit, and the slurry outlet of the slurry storage device 10 is communicated with the slurry inlet of the slurry heating device 15; the slurry outlet of the slurry heating device 15 is communicated with the slurry inlet of the oil-water residue separating device 16, and the oil-water residue separating device 16 is also provided with a first sewage outlet for discharging oil-water residue separating sewage d, a grease outlet for discharging grease f and a solid residue outlet for discharging solid residue e; the filter-pressing dehydration device 21 is provided with a filter-pressing material inlet communicated with the solid slag discharge port, a second sewage discharge port for discharging filter-pressing wastewater k and a filter cake outlet for discharging a filter cake p; the fermentation drying device 23 is provided with an aerobic fermentation inlet communicated with the filter cake outlet, a tail gas condensate outlet for discharging tail gas condensate i and an aerobic fermentation outlet for outputting a soil conditioner or a feed r.
In the garbage recycling system provided by the embodiment of the invention, the steam generating device 20 burns combustion gas such as natural gas or methane a to generate heating steam b, and the heating steam b is conveyed to the heating fluid inlet of the slurry heating device 15 and the heating fluid inlet of the fermentation drying device 23, so that a heat source is provided for the slurry heating device 15 and the fermentation drying device 23. Roughly separating solid and liquid in the receiving draining device 1 by the to-be-treated garbage z through the receiving draining device 1, transmitting the solid part of the to-be-treated garbage z to a crushing and screening assembly from a solid output end of the receiving draining device 1 after the to-be-treated garbage z is subjected to receiving draining by the receiving draining device 1, transmitting the percolate part of the to-be-treated garbage z to a percolate collecting device 2 from a percolate output end of the receiving draining device 1, crushing and screening the solid part of the to-be-treated garbage z by the crushing and screening assembly, mixing the solid part of the to-be-treated garbage z with the percolate of the receiving draining device 1 to form slurry, and conveying the slurry to a crushing and pulping liquid inlet of a slurry storage device 10 from a crushing and pulping liquid outlet of a crushing and pulping unit; then, the slurry enters a slurry heating device 15 and is heated by heating steam b, then enters an oil-water residue separation device 16 for separation, separated grease f is used as biodiesel g, solid residue e separated by the oil-water residue separation device 16 enters a filter-pressing dehydration device 21 for filter pressing, and then enters a fermentation drying device 23 to be mixed with microbial inoculum, adjusting auxiliary materials and the like for aerobic fermentation (and drying) to generate a soil conditioner or feed r, wherein the heat source required by the fermentation and drying of the fermentation drying device 23 is heating steam b. The garbage recycling treatment system provided by the embodiment of the invention effectively reduces discharged solid waste garbage, converts organic matters in garbage z to be treated into a soil conditioner or a feed r to the maximum extent, and improves an added-value product by taking the separated grease f as biodiesel g so as to improve soil or adjust feed protein and improve the recycling utilization rate.
In this embodiment, the material receiving and draining device 1 is preferably a material receiving and conveying device, and the material receiving and conveying device generally adopts an upper hopper and a bottom spiral structure. The upper hopper has certain caching capacity, garbage z (kitchen garbage) to be treated can be poured continuously, the amount of the garbage entering the hopper is detected through the material level detection equipment, and the operation state of the crushing and pulping unit is controlled. The bottom spiral has the design of preventing becoming hunch, and the spiral bottom area waterlogging caused by excessive rainfall hole can the filtering treat free water among the rubbish z. The free water that receives material and conveying equipment drop gets into filtration liquid collection device 2 and stores, and filtration liquid collection device 2 takes stirring function, prevents sediment jam design.
Wherein the slurry may be preheated in the slurry storage device 10. Preferably, the slurry in the slurry storage device 10 exchanges heat with the oil-water residue separation sewage d separated by the oil-water residue separation device 16 and/or the filter-press dewatering sewage k discharged by the filter-press dewatering device 21 by a heat exchange method, so that the slurry can be preheated, the energy consumption for heating the subsequent process slurry can be reduced, and the temperature of the oil-water residue separation sewage d and the filter-press dewatering sewage k can be reduced, thereby reducing the energy consumption for cooling the sewage.
Or may be stored only in the slurry storage device 10. The kitchen waste treatment device is suitable for kitchen waste, and kitchen waste, household kitchen waste and other kitchen waste in the kitchen waste do not need to be separately treated. Among them, the steam generator 20 is preferably a boiler.
Preferably, the slurry enters the slurry heating device 15 and is heated by the heating steam b, and then is preferably heated to 40-70 ℃ so as to increase the molecular granularity of the grease, reduce the viscosity of the grease and facilitate the separation of the grease.
Further, the slurry heating device 15 is preferably a jacketed kettle type heating device, so that the increase of sewage treatment capacity, the waste of heat generated by steam escape and the loss of heat generated by steam into sewage caused by direct heating can be avoided.
The filter-pressing dehydration device 21 preferably dehydrates in a physical mode, can dehydrate materials to a lower water content, and further effectively reduces the energy consumption of the fermentation drying device 23.
For the purpose of improving the energy utilization efficiency, the heated fluid outlet of the slurry heating apparatus 15 communicates with the inlet of the steam generating apparatus 20; the heating fluid outlet of the fermentation drying device 23 is communicated with the inlet of the steam generating device 20. It can be understood that the heated steam b is delivered to the slurry heating device 15 and the fermentation drying device 23 as a heated fluid, and then is cooled to generate water or condensed water i, and the water or condensed water i flows back to the steam generating device 20 from the heated fluid outlet of the slurry heating device 15 and the heated fluid outlet of the fermentation drying device 23, so that water resources can be recycled, and the utilization rate of water energy is effectively improved.
The garbage recycling treatment system further comprises a condensed water collecting device 22 for delivering water to the steam generating device 20; the condensed water collecting device 22 has a first condensed water inlet communicated with the heated fluid outlet of the slurry heating device 15 and a second condensed water inlet communicated with the heated fluid outlet of the fermentation drying device 23. Through the arrangement, the recycling of the condensed water is realized.
The crushing and screening component comprises a rough separation device, a crushing, pulping and separation device 5 and a pulp homogenizing and desanding device 6; the coarse separation device is provided with a coarse crushing device 3 and a coarse screening device 4, the input end of the coarse crushing device 3 is communicated with the solid output end of the received material draining device 1, and the coarse screening device 4 is provided with a coarse screening inlet communicated with the output end of the coarse crushing device 3, a first oversize product outlet used for outputting coarse screening oversize products 4a and an undersize product outlet used for outputting coarse screening undersize products 4 b; the crushing pulping and sorting device 5 is provided with a crushing pulping inlet communicated with the undersize outlet, a percolate inlet communicated with the output end of the percolate collecting device 2, a slurry outlet for outputting slurry 5b and a second oversize outlet for outputting the crushed pulping oversize 5 a; the slurry homogenizing and sand removing device is provided with a crushing slurry inlet, a slurry homogenizing inlet communicated with the slurry outlet and a sand outlet used for outputting sand 6 a. Through the arrangement, the preparation of the slurry is realized, and the oversize products 4a of the coarse screening, the oversize products 5a of the crushing and pulping and the sand grains 6a are removed from the slurry, so that the subsequent treatment effect of the slurry is effectively improved.
In this embodiment, the coarse crushing device 3 has the functions of bag breaking and particle size uniformity of the kitchen waste, and the waste z to be treated is crushed to a particle size smaller than 100 mm; then, the materials with the particle size larger than 50mm are classified into oversize materials 4a of the coarse screening, and the kitchen waste with the particle size smaller than or equal to 50mm is classified into undersize materials 4b of the coarse screening; then, the coarse screening undersize 4b, the percolate collected by the percolate collecting device 2, the fine screening oversize c selected by the fine screening device 7 and the water extruded by the extrusion dehydration device 9 enter the crushing pulping sorting device 5 together to prepare the serous fluid 5b with the particle size smaller than 8mm, and the material which is larger than 8mm and can not be crushed becomes the crushing pulping oversize 5a to be sorted out; then, the slurry 5b enters a homogenizing and desanding device 6, sand grains 6a such as bone residues, ceramics, eggshells, glass and stones are sorted out, the sorted sand grains 6a enter a garbage storage device 8, the coarse screening oversize products 4a and the crushing and pulping oversize products 5a enter an extrusion dehydration device 9 for dehydration, the solid parts after extrusion dehydration enter the garbage storage device 8, the slurry after desanding through the homogenizing and desanding device 6 enters a fine screening device 7 for screening, the slurry with the particle size smaller than 8mm enters a slurry storage device 10 for storage, and the fine screening oversize products c with the particle size larger than 8mm enter a crushing and pulping and sorting device 5 for crushing, pulping and sorting again.
The garbage storage device 8 stores a predetermined amount of kitchen garbage and sand (incineration and/or landfill garbage s), and then incinerates or landfills the garbage by being transported outside the vehicle. Preferably, the press dehydration device 9 is a press type dehydration apparatus having a certain crushing function.
Preferably, the coarse crushing device 3 is a double-shaft tooth type shearing type crusher, and has the functions of bag breaking and uniform particle size.
The coarse screening device 4 adopts rotary screening equipment, and the rotary type of the screen is superior to that of the spiral shaft so as to avoid the blocking influence caused by the embedding of substances with higher hardness into the screen holes.
The screen of the crushing, pulping and sorting device 5 has a rotary function, and the screen can be rotated to centrifugally dewater oversize products, so that the moisture and grease carrying capacity of the oversize products is reduced.
After the coarse separation device, the crushing pulping separation device 5 and the uniform pulp desanding device 6 separate out most of inorganic substances in the garbage z to be treated, the rest part in the garbage z to be treated is completely pulped, water, oil and slag are separated by full heating after pulping, and the oil recovery rate is high.
In order to further improve the utilization rate of resources, the crushing and screening assembly also comprises a garbage storage device 8 and an extrusion dehydration device 9 which are used for storing incineration and/or landfill garbage s, wherein the garbage storage device 8 is provided with a garbage inlet communicated with the sand outlet; the extrusion dehydration device 9 has an extrusion dehydration inlet communicated with the first oversize outlet, an extrusion liquid outlet communicated with the crushing pulping inlet, a crushing pulping oversize inlet communicated with the second oversize outlet, and an extrusion solid outlet communicated with the garbage inlet of the garbage storage device 8. By carrying out incineration or landfill of the incineration and/or landfill waste s, the moisture and grease carrying amount of the incineration and/or landfill waste s is reduced.
In order to further improve the treatment effect of thick liquid, broken screening subassembly still includes fine screening plant 7, and the undersize thing after the fine screening plant 7 sieves is broken system thick liquid, and fine screening plant 7 has broken system thick liquid export and is used for exporting the third oversize thing export of fine screening oversize thing c, and third oversize thing export and broken slurrying sorting unit 5 intercommunication. Through the arrangement, the resource utilization rate is further improved.
The garbage recycling treatment system also comprises a biogas generation unit for providing biogas a to the steam generation device 20, and the steam generation device 20 heats water by burning the biogas a to generate steam b; the biogas generation unit comprises a homogenate modulation device 14, a thick liquid anaerobic device 13 and a sewage treatment device 12; the homogenizing and conditioning device 14 is provided with a homogenizing and conditioning outlet, a homogenizing and conditioning solid slag inlet communicated with a solid slag outlet of the oil-water slag separating device 16 and a homogenizing and conditioning slurry inlet communicated with the first sewage outlet and/or the second sewage outlet; the thick liquid anaerobic device 13 is provided with a biogas liquid output port for outputting biogas liquid v, a thick liquid inlet communicated with the homogenate outlet and a first biogas outlet communicated with the biogas inlet of the steam generating device 20; the sewage treatment device 12 has a biogas slurry inlet communicated with the biogas slurry outlet and a second biogas outlet communicated with the biogas inlet of the steam generation device 20. Through the arrangement, the components of the slurry are used for methane production, the oil-water residue separation device 16 discharges oil-water residue separation sewage d and the filter pressing dewatering sewage k discharged by the filter pressing dewatering device 21 is effectively utilized, the trouble of adding external materials for methane production is effectively avoided, and the energy utilization rate is also improved. The sewage treatment apparatus 12 also has a waste water discharge port that discharges waste water w.
Preferably, the slurry homogenizing and conditioning device further comprises a sewage buffering device 11 communicated with the first sewage outlet and the second sewage outlet, and the sewage in the sewage buffering device 11 preheats the slurry in the slurry storage device 10 and then flows into the slurry homogenizing and conditioning device 14.
The slurry processing unit also comprises a solid slag storage device 18 arranged between the solid slag discharge port and the filter-pressing material inlet; the homogenate modulation solid slag inlet is communicated with a solid slag storage device 18; a first biogas residue outlet of the concentrated slurry anaerobic device 13 for outputting biogas residue t and a second biogas residue outlet of the sewage treatment device 12 for outputting biogas residue t are communicated with the solid residue storage device 18. In order to facilitate the storage of the solid slag e and the application of the subsequent process, a solid slag storage tank 18 is arranged, and the solid slag e in the solid slag storage tank 18 is sent to a pressure equalizing filter dehydration device 21 to generate a filter cake p.
It can be understood that after the filter cake p is conveyed to the fermenting and drying device 23, the filter cake p in the fermenting and drying device 23 is mixed with the microbial inoculum and the adjusting auxiliary material which are filled in the fermenting and drying device 23 by the adjusting material filling device 25 to perform aerobic fermentation and drying operation, and then the soil conditioner or the feed r is generated. Before the soil conditioner or the feed r is generated, the material output by the fermentation drying device 23 can be conveyed to the post-treatment device 24 for post-treatment, and the soil conditioner or the feed r is output after the post-treatment operation. The performance of the soil conditioner or feed r is further improved by adding the post-treatment device 24 for post-treatment.
The garbage recycling treatment system provided by the embodiment of the invention further comprises an oil storage device 17, wherein an inlet of the oil storage device 17 is communicated with the oil outlet, and an outlet of the oil storage device 17 is used for discharging the biodiesel g. The grease f discharged from the oil-water residue separation device 16 is stored by the grease storage device 17 so as to be conveniently operated in a centralized manner, and the biodiesel g is generated.
And collecting the grease f to a grease storage device 17 for storage, and selling the grease f as the biodiesel g after the grease is stored to a certain amount.
The biogas generation unit also comprises a biogas purification and storage device 19; the biogas purification and storage device 19 has a biogas inlet communicated with the first biogas outlet and the second biogas outlet, a first biogas outlet communicated with the biogas inlet of the steam generation device 20, and a second biogas outlet for use by the combustion apparatus x. The combustion device x may be a device for illumination, such as a combustion torch or the like. The biogas in the biogas purification and storage device 19 can also be conveyed to other equipment, such as heating equipment, etc., which are not described one by one and are all within the protection range. And, when the amount of generated biogas is excessive, a part of the biogas can be consumed by the combustion apparatus x to maintain the stable operation of the thick matter anaerobic apparatus 13 and the slurry treatment unit.
The embodiment of the invention also provides a garbage recycling treatment method, which comprises the following steps:
s1: carrying out crushing and pulping operation on the garbage to be treated to generate slurry;
wherein, the crushing pulping operation comprises rough separation, crushing pulping separation and pulp homogenizing and sand removing.
S2: heating the slurry;
preferably, the slurry is heated to 40 to 70 ℃ to increase the molecular particle size of the grease, reduce the viscosity of the grease and facilitate grease separation.
S3: and (3) carrying out oil-water residue separation on the heated slurry, taking the separated grease f as biodiesel g, and carrying out aerobic fermentation on the separated solid residue e to generate a soil conditioner or feed r.
The garbage recycling method provided by the embodiment of the invention effectively reduces discharged solid waste garbage, converts organic matters in the garbage to be processed into a soil conditioner or a feed r to the maximum extent, and improves an added-value product by taking the separated grease f as biodiesel g so as to improve the soil or adjust the feed protein and improve the recycling utilization rate.
Further, in step S3, before the aerobic fermentation of the solid residue e, the solid residue e is subjected to filter pressing dehydration. Through setting up, fermentation efficiency has been improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A garbage recycling system, comprising:
the device comprises a crushing and pulping unit, wherein the crushing and pulping unit is provided with a receiving and draining device (1), a percolate collecting device (2) and a crushing and screening assembly, the receiving and draining device (1) is provided with a receiving and draining inlet for the garbage (z) to be treated to enter, the solid output end of the receiving and draining device (1) is communicated with the crushing and screening assembly, and the percolate output end of the receiving and draining device (1) is communicated with the percolate inlet of the crushing and screening assembly;
the slurry treatment unit comprises a slurry storage device (10), a slurry heating device (15), an oil-water residue separation device (16), a filter-pressing dehydration device (21), a fermentation drying device (23) and a steam generation device (20); the heating steam (b) output by the steam generating device (20) is conveyed to a heating fluid inlet of the slurry heating device (15) and a heating fluid inlet of the fermentation drying device (23); the slurry storage device (10) is provided with a crushing slurry inlet communicated with a crushing slurry outlet of the crushing and pulping unit, and the slurry outlet of the slurry storage device (10) is communicated with the slurry inlet of the slurry heating device (15); the slurry outlet of the slurry heating device (15) is communicated with the slurry inlet of the oil-water residue separation device (16), and the oil-water residue separation device (16) is also provided with a first sewage outlet for discharging oil-water residue separation sewage (d), a grease outlet for discharging grease (f) and a solid residue outlet for discharging solid residue (e); the filter-pressing dehydration device (21) is provided with a filter-pressing material inlet communicated with the solid slag discharge port, a second sewage discharge port for discharging filter-pressing wastewater (k) and a filter cake outlet for discharging a filter cake (p); the fermentation drying device (23) is provided with an aerobic fermentation inlet communicated with the filter cake outlet, a tail gas condensate outlet used for discharging tail gas condensate (i) and an aerobic fermentation outlet used for outputting a soil conditioner or feed (r).
2. A waste resource disposal system as claimed in claim 1 wherein the heated fluid outlet of the slurry heating means (15) is in communication with the inlet of the steam generating means (20);
and/or a heating fluid outlet of the fermentation drying device (23) is communicated with an inlet of the steam generating device (20).
3. The waste recycling system of claim 1, wherein the crushing screen assembly comprises:
a coarse separation device, which comprises a coarse crushing device (3) and a coarse screening device (4), wherein the input end of the coarse crushing device (3) is communicated with the solid output end of the receiving draining device (1), and the coarse screening device (4) is provided with a coarse screening inlet communicated with the output end of the coarse crushing device (3), a first oversize product outlet used for outputting coarse screening oversize products (4a) and an undersize product outlet used for outputting coarse screening undersize products (4 b);
the crushing pulping and sorting device (5) is provided with a crushing pulping inlet communicated with the undersize outlet, a percolate inlet communicated with the output end of the percolate collecting device (2), a slurry outlet used for outputting slurry (5b) and a second oversize outlet used for outputting crushing pulping oversize (5 a);
the slurry homogenizing and sand removing device (6) is provided with the crushing slurry preparing inlet, a slurry homogenizing inlet communicated with the slurry outlet and a sand outlet used for outputting sand grains (6 a).
4. The waste recycling system of claim 3, wherein the crushing screen assembly further comprises:
a waste storage device (8) for storing incinerated and/or landfilled waste(s), the waste storage device (8) having a waste inlet in communication with the sand outlet;
and the extrusion dehydration device (9) is provided with an extrusion dehydration inlet communicated with the first oversize product outlet, an extrusion liquid outlet communicated with the crushing pulping inlet, a crushing pulping oversize product inlet communicated with the second oversize product outlet and an extrusion solid outlet communicated with the garbage inlet of the garbage storage device (8).
5. A waste treatment system as claimed in claim 3, wherein the crushing and screening assembly further comprises a fine screening device (7), the undersize product after being screened by the fine screening device (7) is crushing and pulping liquid, the fine screening device (7) is provided with the crushing and pulping liquid outlet and a third oversize product outlet for outputting fine screening and oversize product (c), and the third oversize product outlet is communicated with the crushing and pulping sorting device (5).
6. A waste resource disposal system as claimed in claim 1, further comprising a biogas generation unit for supplying biogas (a) to said steam generation device (20), said steam generation device (20) generating said steam (b) by burning said biogas (a) to heat water;
the biogas generation unit comprises a homogenate modulation device (14), a thick liquid anaerobic device (13) and a sewage treatment device (12);
the homogenate modulation device (14) is provided with a homogenate outlet, a homogenate modulation solid slag inlet communicated with a solid slag outlet of the oil-water slag separation device (16) and a homogenate modulation slurry inlet communicated with the first sewage outlet and/or the second sewage outlet;
the thick liquid anaerobic device (13) is provided with a biogas liquid output port for outputting biogas liquid (v), a thick liquid inlet communicated with the homogenate outlet and a first biogas outlet communicated with the biogas inlet of the steam generating device (20);
the sewage treatment device (12) is provided with a biogas slurry inlet communicated with the biogas slurry output port and a second biogas outlet communicated with the biogas inlet of the steam generation device (20).
7. The waste recycling system according to claim 6, wherein said slurry treatment unit further comprises a solid slag storage device (18) disposed between said solid slag discharge port and said filter-press inlet;
the homogenate modulation solid slag inlet is communicated with the solid slag storage device (18);
the concentrated slurry anaerobic device (13) is used for outputting a first biogas residue outlet of biogas residue (t), the sewage treatment device (12) is used for outputting a second biogas residue outlet of biogas residue (t) and is communicated with the solid residue storage device (18).
8. A waste resource disposal system as claimed in claim 7 wherein said biogas generating unit further comprises a biogas purification storage device (19);
the biogas purification and storage device (19) is provided with a biogas inlet communicated with the first biogas outlet and the second biogas outlet, a first biogas outlet communicated with the biogas inlet of the steam generation device (20) and a second biogas outlet used for the combustion equipment (x).
9. A garbage recycling method is characterized by comprising the following steps:
1) carrying out crushing and pulping operation on the garbage (z) to be treated to generate slurry;
2) heating the slurry;
3) and (c) carrying out oil-water residue separation on the heated slurry, taking the separated grease (f) as biodiesel (g), and carrying out aerobic fermentation on the separated solid residue (e) to generate a soil conditioner or feed (r).
10. The method according to claim 9, wherein in the step 3), the solid residue (e) is subjected to filter pressing dehydration before the aerobic fermentation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535253A (en) * | 2022-01-20 | 2022-05-27 | 北京嘉博文生物科技有限公司 | Kitchen waste recycling treatment system and method |
| CN115156254A (en) * | 2022-07-19 | 2022-10-11 | 北京嘉博文生物科技有限公司 | Dry and wet garbage co-processing technology and equipment |
| CN115414728A (en) * | 2022-09-26 | 2022-12-02 | 北京泓龙科技有限公司 | Water-slurry separation device for mineral aggregate smelting |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2826953A1 (en) * | 2001-07-06 | 2003-01-10 | Otv Sa | PROCESS FOR TREATING ANIMAL FLOUR AND / OR FAT |
| CN101632997A (en) * | 2009-05-27 | 2010-01-27 | 北京嘉博文生物科技有限公司 | Organic waste biochemical processor |
| CN101921809A (en) * | 2010-07-28 | 2010-12-22 | 宁波开诚生态技术有限公司 | Kitchen waste disposal method |
| CN102260007A (en) * | 2010-05-24 | 2011-11-30 | 营口生物替代能源有限公司 | Industrial treatment method of catering swills |
| CN102921704A (en) * | 2012-11-12 | 2013-02-13 | 都市高科（北京）环境科技有限公司 | Harmless disposal method of kitchen garbage |
| CN107900088A (en) * | 2017-12-29 | 2018-04-13 | 张共敏 | Kitchen garbage Fodder making additive system and manufacture craft |
| CN211620489U (en) * | 2020-01-09 | 2020-10-02 | 山东世纪春生物科技股份有限公司 | Production device for extracting amino acids in sesame seed meal by fermentation method |
| CN211814058U (en) * | 2019-12-20 | 2020-10-30 | 中建安装集团有限公司 | Sludge resource treatment device |
| CN112661372A (en) * | 2020-12-31 | 2021-04-16 | 深圳市能源环保有限公司 | Household garbage, kitchen garbage, municipal excrement and municipal sludge co-treatment method |
-
2021
- 2021-09-30 CN CN202111163249.0A patent/CN113877935A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2826953A1 (en) * | 2001-07-06 | 2003-01-10 | Otv Sa | PROCESS FOR TREATING ANIMAL FLOUR AND / OR FAT |
| CN101632997A (en) * | 2009-05-27 | 2010-01-27 | 北京嘉博文生物科技有限公司 | Organic waste biochemical processor |
| CN102260007A (en) * | 2010-05-24 | 2011-11-30 | 营口生物替代能源有限公司 | Industrial treatment method of catering swills |
| CN101921809A (en) * | 2010-07-28 | 2010-12-22 | 宁波开诚生态技术有限公司 | Kitchen waste disposal method |
| CN102921704A (en) * | 2012-11-12 | 2013-02-13 | 都市高科（北京）环境科技有限公司 | Harmless disposal method of kitchen garbage |
| CN107900088A (en) * | 2017-12-29 | 2018-04-13 | 张共敏 | Kitchen garbage Fodder making additive system and manufacture craft |
| CN211814058U (en) * | 2019-12-20 | 2020-10-30 | 中建安装集团有限公司 | Sludge resource treatment device |
| CN211620489U (en) * | 2020-01-09 | 2020-10-02 | 山东世纪春生物科技股份有限公司 | Production device for extracting amino acids in sesame seed meal by fermentation method |
| CN112661372A (en) * | 2020-12-31 | 2021-04-16 | 深圳市能源环保有限公司 | Household garbage, kitchen garbage, municipal excrement and municipal sludge co-treatment method |
Non-Patent Citations (2)
| Title |
|---|
| 刘建伟: "《生活垃圾综合处理与资源化利用技术》", 3 September 2018 * |
| 赵莹: "《垃圾能源化利用与管理》", 1 January 2013 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535253A (en) * | 2022-01-20 | 2022-05-27 | 北京嘉博文生物科技有限公司 | Kitchen waste recycling treatment system and method |
| CN115156254A (en) * | 2022-07-19 | 2022-10-11 | 北京嘉博文生物科技有限公司 | Dry and wet garbage co-processing technology and equipment |
| CN115414728A (en) * | 2022-09-26 | 2022-12-02 | 北京泓龙科技有限公司 | Water-slurry separation device for mineral aggregate smelting |
| CN115414728B (en) * | 2022-09-26 | 2023-12-08 | 北京泓龙科技有限公司 | Slurry separation device for mineral aggregate smelting |
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