CN115958051A - Food waste and kitchen waste co-processing system and processing method thereof - Google Patents
Food waste and kitchen waste co-processing system and processing method thereof Download PDFInfo
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- CN115958051A CN115958051A CN202211543263.8A CN202211543263A CN115958051A CN 115958051 A CN115958051 A CN 115958051A CN 202211543263 A CN202211543263 A CN 202211543263A CN 115958051 A CN115958051 A CN 115958051A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a method and a system for cooperatively treating food waste and kitchen waste, which mainly combine a food waste treatment system, a biogas system, a kitchen waste treatment system, a sewage treatment system, a deodorization system and a biological drying bin; the food waste and the kitchen waste are treated synchronously, three phases (oil, liquid and solid) are separated and treated respectively, and finally solid residues enter a biological drying bin for final drying treatment, so that the final synchronous treatment of two types of waste is realized.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a system and a method for cooperatively treating food waste and kitchen waste.
Background
The food waste is mainly generated from the leftovers in restaurants, dining halls and other catering industries, and has the characteristics of extremely high water content (about 85-90 percent), high content of grease and salt, easiness in eating, easiness in smelling and the like.
The kitchen waste mainly refers to waste leftovers and leftovers in daily cooking of residents, and has high water content (about 60-80%).
At present, both types of waste are treated separately;
the anaerobic digestion process is adopted for the main body treatment process of the food waste,
because domestic food waste has high water content and is generally mixed with kitchen waste for composting, the food waste is rarely treated by composting independently, and the application of the food waste in the field is restricted by overhigh salt content.
The feed treatment technology mainly adopts a physical means to heat the food waste at high temperature, dry, sterilize and remove salt and the like, and can finally generate available substances such as protein feed additives, reclaimed water, methane and the like. The technical product is a feed for the breeding industry, has potential homologous pollution, is closely related to human health, has larger safety risk and is not recommended.
The biochemical microbe treating technology includes selecting high temperature composite microbe strain with high life activity and proliferation capacity, high temperature high speed fermentation of meat, expired food, food refuse and other organic waste in biochemical treating apparatus to degrade and convert various organic matters completely and to prepare microbe fertilizer bacterial preparation and biological protein feed. As the process needs to mix a large amount of other organic matters (such as bran, bran and the like) in the food waste, the reduction effect of the technology is poor, the product market is not easy to solve, and in addition, the process has higher operation energy consumption.
From the viewpoint of the advanced foreign kitchen waste treatment technology, the kitchen waste treatment is mainly based on biochemical treatment, wherein the treatment process combining anaerobic treatment and aerobic treatment is generally accepted and adopted.
But currently, a complete process system capable of synchronously treating two types of garbage at the same time does not exist.
Disclosure of Invention
According to the technical problems, a system and a method for cooperatively treating food waste and kitchen waste are provided.
The technical means adopted by the invention are as follows:
a method for cooperatively treating food waste and kitchen waste comprises the following steps:
step one, food waste and kitchen waste are respectively thrown into an inlet of a food waste treatment system and an inlet of a kitchen waste treatment system;
the food waste is pre-cleaned in a first layer by a screening pre-cleaner, and then is mixed with impurities cleaned in the first layer and sent out while pulping by subdivision;
draining kitchen garbage by a spiral, putting the kitchen garbage into a material pit, allowing the drained liquid to flow into a draining tank, and dehydrating the garbage subjected to spiral draining by a mechanical dehydration process, wherein the drained garbage flows into the draining tank at the same time of water removal;
adding fresh structures (such as garden garbage) into the mechanically dewatered kitchen garbage, and treating the kitchen garbage in a draining pond through a wet anaerobic system;
carrying out sand setting and impurity removal on the food waste subjected to the subdivision pulping, and simultaneously discharging sand while removing impurities; the method comprises the following specific steps: after the pulping is carried out by the pulping all-in-one machine, the material is in a pulp shape, has higher viscosity and consistency, and contains a large amount of heavy inerts left after the crushing, such as gravel, crushed shells and the like. Through the dilution of the draining water of the hopper, the viscosity and the consistency of the slurry are reduced, so that the working condition of the sand removing section is closer to the working condition of sewage treatment sand setting, and the efficiency of the slurry inerts is improved. Inorganic solid slag with the size of more than 3mm is removed through deslagging by a spiral grid, and is squeezed, and impurities such as fine sand, broken bones and the like can be removed through settling sand in a spiral-flow type grit chamber.
Putting the food waste subjected to sand setting and impurity removal into a cache pool, heating the food waste by a heating system, and synchronously discharging sand by heating equipment in the heating process;
step three, placing the mechanically mixed kitchen waste into a biological drying bin for drying and deodorizing;
the heated food residue enters a three-phase oil extraction machine for oil extraction, the organic solid residue separated from three phases is sent to a biological drying bin for drying and deodorization, the slurry separated from three phases enters a homogenizing tank for uniform stirring and hydrolytic acidification, good material conditions are provided for anaerobic digestion, stable feeding is carried out on the slurry to an anaerobic digestion system, the separated oil is separated from grease through an oil filter, and the grease is sent out for recovery;
screening the kitchen waste subjected to drying and deodorization treatment into a backflow structure through a screening device, mixing the backflow structure with the fresh structure obtained in the step two, and supplementing the mixture into a mechanical mixing material; feeding the slurry of the food and beverage wastes output by the homogenizing tank (such as garden wastes) into an anaerobic fermentation tank for fermentation, outputting the fermented slurry to a water-sealed tank, finally leading the fermented slurry into a biogas treatment system, putting the discharged residues at the bottom of the anaerobic fermentation tank into a biogas tank, dehydrating the discharged residues by a centrifugal dehydration device, allowing the dehydrated filtrate to flow into a sewage treatment system, conveying the dehydrated residues serving as biogas residues to a biological drying bin, and performing drying treatment; and finally transporting the dried product to a burning power plant for burning treatment. A food residue and kitchen waste cooperative processing system includes:
a food waste treatment system, a biogas system, a kitchen waste treatment system, a sewage treatment system, a deodorization system and a biological drying bin;
above-mentioned food and beverage rubbish processing system includes: the system comprises a three-phase separation device for collecting food waste and performing three-phase (oil, liquid and solid) separation, an oil phase outward transportation device connected with an oil phase discharge pipeline of the three-phase separation device and used for collection, storage and outward transportation, and a wet anaerobic treatment system connected with a liquid phase discharge pipeline of the three-phase separation device;
the deodorization system is used for removing odor gas in the whole system;
treating solid phase waste residue by using a Mechanical Biological Treatment system (Mechanical Biological Treatment);
the sewage Treatment system is used for receiving and treating sewage generated when a Mechanical Biological Treatment system (Mechanical Biological Treatment) treats solid-phase waste residues, and synchronously receiving slurry of food wastes fermented by a wet anaerobic Treatment system;
above-mentioned kitchen garbage processing system includes: the kitchen garbage draining device comprises a spiral draining device for draining kitchen garbage, a mechanical dewatering device for receiving the drained kitchen garbage, and a mechanical mixing device for receiving the dewatered kitchen garbage;
the spiral draining device simultaneously receives the solid-phase slag of the three-phase separation device and the discharged slag of the wet anaerobic treatment system;
the wet anaerobic treatment system simultaneously receives the percolate of the spiral draining device and the percolate separated by the mechanical dewatering device;
the mechanical mixing device receives the added new structure and the recovery structure screened out by the biological drying bin;
the biological drying bin receives wet materials discharged by the mechanical mixing device and carries out drying treatment on the wet materials;
waste gas in the biological drying bin enters a deodorizing system for deodorization, a drying product passes through a screening device, a screened structure is used as a recycling structure, and other drying products are discharged as final drying products.
In a further aspect of the present invention,
biological mummification storehouse quantity is a plurality of, and every biological mummification storehouse is for having the rectangle and hold the sealed storehouse body in chamber, and is located ground and is provided with air inlet pipeline, and evenly is provided with the nozzle that a plurality of sprays in to the cavity on the air inlet pipeline, and storehouse body one end communicates with deodorization system's gas collection pipeline.
In a further aspect of the present invention,
the main pipe of the air inlet pipeline of each drying bin is provided with an independent centrifugal fan, and fresh air and process gas required by drying are mixed and then introduced into the drying bin body.
In a further aspect of the present invention,
the exhaust pipeline of each drying bin is converged on a main exhaust pipeline, a part of gas in the main exhaust pipeline is sent into a biological filter (the biological filter with a concrete structure is composed of concrete tanks which are divided into different areas according to actual sizes, the bottom of the biological filter is composed of porous concrete plates supported by walls, and air is allowed to uniformly flow in the whole area; an independent fan is arranged in the main fresh air pipeline to suck air;
and a pressure detection device is arranged at the sealing joint of the drying bin and connects pressure data with a valve controller of the main exhaust pipe so as to keep the drying bin in a slight negative pressure state all the time.
By adopting the technical scheme, the invention combines the positive influence of domestic kitchen waste characteristics and waste classification on kitchen waste, and adopts the treatment process of solid-liquid separation pretreatment, liquid-phase wet anaerobic digestion, solid-phase biological drying and mechanical screening to realize the synergistic treatment of food and kitchen waste, reduce the environmental pollution caused by the waste, recover the available substances in the waste and change the kitchen waste into valuable.
Compared with the prior art, the invention has the following advantages:
1. can simultaneously treat food waste and kitchen waste.
2. The treatment cycle is complete, and the recoverable matter is many.
3. The economic benefit is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an overall process diagram of the present invention.
FIG. 2 is a schematic view of the food waste disposal system of the present invention.
Fig. 3 is a schematic view of the biogas system of the present invention.
FIG. 4 is a schematic view of the kitchen waste treatment system of the present invention.
FIG. 5 is a schematic view of a wastewater treatment system according to the present invention.
FIG. 6 is a schematic view of a ventilation deodorizing system according to the present invention.
Fig. 7 is a schematic structural view of the biological drying bin of the present invention.
In the figure: 1. lifting beam 2, bin cover 3, body structure 4, nozzle 5 and pipeline.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
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 only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 to 4, the invention provides a method for cooperatively treating food waste and kitchen waste, which comprises the following steps:
step one, food waste and kitchen waste are respectively thrown into an inlet of a food waste treatment system and an inlet of a kitchen waste treatment system;
the food waste is pre-cleaned in a first layer by a screening and primary cleaning machine, and is mixed with impurities cleaned in the first layer and sent out while being subjected to pulping by subdivision and pulping;
draining kitchen garbage by a spiral, putting the kitchen garbage into a material pit, allowing the drained liquid to flow into a draining tank, and dehydrating the garbage subjected to spiral draining by a mechanical dehydration process, wherein the drained garbage flows into the draining tank at the same time of water removal;
adding fresh structures (such as garden garbage) into the mechanically dewatered kitchen waste, and treating the kitchen waste in a draining pond through a wet anaerobic system;
carrying out sand setting and impurity removal on the food waste subjected to the subdivision pulping, and simultaneously discharging sand while removing impurities; the method specifically comprises the following steps: after the crushing and pulping of the pulping integrated machine, the material is in a pulp shape, has higher viscosity and consistency, and contains a large amount of heavy inert matters left after crushing, such as gravel, crushed shells and the like. Through the dilution of the draining water of the hopper, the viscosity and the consistency of the slurry are reduced, so that the working condition of the sand removing section is closer to the working condition of sewage treatment sand setting, and the nowhere efficiency of the slurry inert matter is improved. Inorganic solid slag with the size of more than 3mm is removed through deslagging by a spiral grid, and is squeezed, and impurities such as fine sand, broken bones and the like can be removed through settling sand in a spiral-flow type grit chamber.
Putting the food waste subjected to sand setting and impurity removal into a cache pool, heating the food waste by a heating system, and synchronously discharging sand by heating equipment in the heating process;
step three, placing the mechanically mixed kitchen waste into a biological drying bin for drying and deodorizing;
the heated food waste enters a three-phase oil extraction machine for oil extraction, organic solid residues separated from three phases are sent to a biological drying bin for drying and deodorization, slurry separated from three phases enters a homogenizing tank for uniform stirring, hydrolysis and acidification are performed to provide good material conditions for anaerobic digestion and stably feed the slurry to an anaerobic digestion system, the separated oil is separated from grease through an oil filter, and the grease is sent out for recovery;
screening the kitchen waste subjected to drying and deodorization treatment by using screening equipment to obtain a backflow structure, mixing the backflow structure with the fresh structure obtained in the step two, and supplementing the mixture into a mechanical mixing material (such as garden waste); feeding the slurry of the food waste output by the homogenizing tank into an anaerobic fermentation tank for fermentation, outputting the fermented slurry to a water-sealed tank, finally leading the fermented slurry into a biogas treatment system, putting the residue discharged from the bottom of the anaerobic fermentation tank into a biogas tank, dehydrating the residue by a centrifugal dehydration device, allowing the dehydrated filtrate to flow into a sewage treatment system, conveying the dehydrated residue serving as biogas residue to a biological drying bin, and performing drying treatment; and (5) transporting the final dried product to a incineration power plant for incineration treatment.
As shown in fig. 1 to 7, a system for co-processing food waste and kitchen waste comprises:
a food waste treatment system, a methane system, a kitchen waste treatment system, a sewage treatment system, a deodorization system and a biological drying bin;
above-mentioned food and beverage rubbish processing system includes: the system comprises a three-phase separation device for collecting food waste and performing three-phase (oil, liquid and solid) separation, an oil phase outward transportation device connected with an oil phase discharge pipeline of the three-phase separation device and used for collection, storage and outward transportation, and a wet anaerobic treatment system connected with a liquid phase discharge pipeline of the three-phase separation device;
the deodorization system is used for removing odor gas in the whole system;
treating solid-phase waste residue by using a Mechanical Biological Treatment system (Mechanical Biological Treatment);
the sewage Treatment system is used for receiving and treating sewage generated when a Mechanical Biological Treatment system (Mechanical Biological Treatment) treats solid-phase waste residues, and synchronously receiving slurry of food waste fermented by the wet anaerobic Treatment system;
above-mentioned kitchen garbage processing system includes: the kitchen garbage draining device comprises a spiral draining device for draining kitchen garbage, a mechanical dewatering device for receiving the drained kitchen garbage, and a mechanical mixing device for receiving the dewatered kitchen garbage;
the spiral draining device simultaneously receives the solid-phase slag of the three-phase separation device and the discharged slag of the wet anaerobic treatment system;
the wet anaerobic treatment system simultaneously receives the percolate of the spiral draining device and the percolate removed by the mechanical dewatering device;
the mechanical mixing device receives the added new structure and the recovered structure screened out by the biological drying bin;
the biological drying bin receives wet materials discharged by the mechanical mixing device and carries out drying treatment on the wet materials;
waste gas in the biological drying bin enters a deodorizing system for deodorization, a drying product passes through a screening device, a screened structure is used as a recycling structure, and other drying products are discharged as final drying products.
Further, as shown in fig. 7, each biological drying bin specifically includes: the drying chamber comprises a body structure 3 (namely each side wall) for forming a containing chamber with an open top, and a bin cover 2 which is arranged at the top of the body structure 3 and used for plugging the open top of the body structure, wherein a lifting beam 1 is fixed on the bin cover 2, a plurality of pipelines 5 are arranged in the ground structure of the drying chamber, and a plurality of nozzles 4 which are in the spraying direction to the inside of the drying chamber are arranged on the pipelines 5;
biological mummification storehouse quantity is a plurality of, and every biological mummification storehouse is for having the rectangle and hold the sealed storehouse body in chamber, and is located ground and is provided with air inlet pipeline, and evenly is provided with the nozzle that a plurality of sprays in to the cavity on the air inlet pipeline, and storehouse body one end communicates with deodorization system's gas collection pipeline.
Further, in the above-mentioned case,
the main pipe of the air inlet pipeline of each drying bin is provided with an independent centrifugal fan, and fresh air and process gas required by drying are mixed and then introduced into the drying bin body.
In a further aspect of the present invention,
the exhaust pipeline of each drying bin is converged on a main exhaust pipeline, a part of gas in the main exhaust pipeline is sent into a biological filter (the biological filter with a concrete structure is composed of concrete tanks which are divided into different areas according to actual sizes, the bottom of the biological filter is composed of porous concrete plates supported by walls, and air is allowed to uniformly flow in the whole area; an independent fan is arranged in the main fresh air pipeline to suck air;
and a pressure detection device is arranged at the sealing joint of the drying bin, and pressure data is connected with a valve controller of the main exhaust pipe so as to keep the drying bin in a slight negative pressure state all the time.
By adopting the technical scheme, the invention combines the positive influence of domestic kitchen waste characteristics and waste classification on kitchen waste, and adopts the treatment process of solid-liquid separation pretreatment, liquid-phase wet anaerobic digestion, solid-phase biological drying and mechanical screening to realize the synergistic treatment of food and kitchen waste, reduce the environmental pollution caused by the waste, recover the available substances in the waste and change the kitchen waste into valuable.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A method for cooperatively treating food waste and kitchen waste is characterized by comprising the following steps:
step one, feeding food waste and kitchen waste into an inlet of a food waste treatment system and an inlet of a kitchen waste treatment system respectively;
the food waste is pre-cleaned in a first layer by a screening pre-cleaner, and then is mixed with impurities cleaned in the first layer and sent out while pulping by subdivision;
draining kitchen garbage by a spiral, putting the kitchen garbage into a material pit, allowing the drained liquid to flow into a draining tank, and dehydrating the garbage subjected to spiral draining by a mechanical dehydration process, wherein the drained garbage flows into the draining tank at the same time of water removal;
adding fresh structures into the mechanically dewatered kitchen waste, and treating the kitchen waste in a draining pond through a wet anaerobic system;
carrying out sand setting and impurity removal on the food waste subjected to the subdivision pulping, and simultaneously discharging sand while removing impurities;
putting the food waste subjected to sand setting and impurity removal into a cache pool, heating the food waste by a high-temperature cooking pot heating system, and synchronously discharging sand by heating equipment in the heating process;
step three, placing the mechanically mixed kitchen waste into a biological drying bin for drying and deodorizing;
the heated food residue enters a three-phase oil extractor to extract oil, the organic solid residue separated from three phases is sent to a biological drying bin to be dried and deodorized, the slurry separated from three phases enters a homogenizing tank to be uniformly stirred and hydrolyzed and acidified, good material conditions are provided for anaerobic digestion, the material is stably fed to an anaerobic digestion system, the separated oil is separated from the oil through an oil filter, and the oil is sent out and recovered;
screening the kitchen waste subjected to drying and deodorization treatment into a backflow structure through a screening device, mixing the backflow structure with the fresh structure obtained in the step two, and supplementing the mixture into a mechanical mixing material; slurry of the food and beverage wastes output by the homogenizing tank is sent into an anaerobic fermentation tank for fermentation, the slurry is output to a water seal tank after fermentation and finally guided into a biogas treatment system, residue discharged from the bottom of the anaerobic fermentation tank is put into a biogas tank and is dehydrated through centrifugal dehydration equipment, the dehydrated filtrate flows into a sewage treatment system, the dehydrated residue is conveyed to a biological drying bin as biogas residue for drying treatment, and the final dried product is conveyed to an incineration plant for incineration treatment.
2. The utility model provides a food and beverage rubbish and surplus rubbish concurrent processing system in kitchen which characterized in that includes:
a food waste treatment system, a methane system, a kitchen waste treatment system, a sewage treatment system, a deodorization system and a biological drying bin;
above-mentioned food and beverage rubbish processing system includes: the system comprises a three-phase separation device for collecting food waste and performing three-phase (oil, liquid and solid) separation, an oil phase outward transportation device connected with an oil phase discharge pipeline of the three-phase separation device and used for collection, storage and outward transportation, and a wet anaerobic treatment system connected with a liquid phase discharge pipeline of the three-phase separation device;
the deodorization system is used for removing odor gas in the whole system;
treating solid-phase waste residues by using a mechanical biological drying system;
the sewage treatment system is used for receiving sewage generated when the mechanical biological drying system is used for treating solid-phase waste residues, and synchronously receiving slurry of the food waste fermented by the wet anaerobic treatment system;
above-mentioned kitchen garbage processing system includes: the kitchen garbage draining device comprises a spiral draining device for draining kitchen garbage, a mechanical dewatering device for receiving the drained kitchen garbage, and a mechanical mixing device for receiving the dewatered kitchen garbage;
the spiral draining device simultaneously receives the solid-phase slag of the three-phase separation device and the discharged slag of the wet anaerobic treatment system;
the wet anaerobic treatment system simultaneously receives the percolate of the spiral draining device and the percolate removed by the mechanical dewatering device;
the mechanical mixing device receives the added new structure and the recovered structure screened out by the biological drying bin;
the biological drying bin receives wet materials discharged by the mechanical mixing device and carries out drying treatment on the wet materials;
waste gas in the biological drying bin enters a deodorizing system for deodorization, a drying product passes through a screening device, a screened structure is used as a recycling structure, and other drying products are discharged as final drying products.
3. The system for the cooperative processing of food residues and kitchen wastes according to claim 2,
biological mummification storehouse quantity is a plurality of, and every biological mummification storehouse is for having the rectangle and hold the sealed storehouse body in chamber, and is located ground and is provided with air inlet pipeline, and evenly is provided with the nozzle that a plurality of sprays in to the cavity on the air inlet pipeline, and storehouse body one end communicates with deodorization system's gas collection pipeline.
4. The system for the cooperative processing of food residues and kitchen wastes according to claim 3,
the main pipe of the air inlet pipeline of each drying bin is provided with an independent centrifugal fan, and fresh air and process gas required by drying are mixed and then introduced into the drying bin body.
5. The system for the co-processing of food waste and kitchen waste according to claim 3 or 4,
the exhaust pipeline of each drying bin is converged on a main exhaust pipeline, a part of gas in the main exhaust pipeline is sent to the biological filter through a pipeline, and the rest gas is led into a main fresh air pipeline through a branch fan again; an independent fan is arranged in the main fresh air pipeline to suck air;
and a pressure detection device is arranged at the sealing joint of the drying bin and connects pressure data with a valve controller of the main exhaust pipe so as to keep the drying bin in a slight negative pressure state all the time.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117259383A (en) * | 2023-10-30 | 2023-12-22 | 河南理工大学 | Organic solid waste treatment process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117259383A (en) * | 2023-10-30 | 2023-12-22 | 河南理工大学 | Organic solid waste treatment process |
| CN117259383B (en) * | 2023-10-30 | 2024-05-17 | 河南理工大学 | Organic solid waste treatment process |
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