CN112191672A - Kitchen waste and kitchen waste co-processing system and co-processing method - Google Patents
Kitchen waste and kitchen waste co-processing system and co-processing method Download PDFInfo
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- CN112191672A CN112191672A CN202011264267.3A CN202011264267A CN112191672A CN 112191672 A CN112191672 A CN 112191672A CN 202011264267 A CN202011264267 A CN 202011264267A CN 112191672 A CN112191672 A CN 112191672A
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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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- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
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Abstract
本发明具体涉及一种厨余垃圾与餐厨垃圾协同处理系统及协同处理方法，本厨余垃圾与餐厨垃圾协同处理系统包括：厨余垃圾处理机构、餐厨垃圾处理机构、全混厌氧机构、焚烧机构和油脂储存机构；其中所述餐厨垃圾处理机构适于将餐厨垃圾与厨余垃圾处理机构生产的浆液压滤除杂、三相分离，以得到固渣、有机固相、水相和油相；所述全混厌氧机构适于厌氧发酵得到沼气、沼液和沼渣；所述油脂储存机构适于储存油脂；本发明通过高效稳定的自动分选组件代替人工分选，节省人力，安全环保，在与餐厨垃圾处理机构处置的条件下缩减厨余垃圾处理机构，提高设备利用率，进一步深化厨余垃圾的“三化”处置，增加提油工序，有效提取厨余垃圾中的油脂。
The invention specifically relates to a kitchen waste and kitchen waste co-processing system and a co-processing method. The kitchen waste and kitchen waste co-processing system comprises: a kitchen waste processing mechanism, a kitchen waste processing mechanism, a fully mixed anaerobic Mechanism, incineration mechanism and grease storage mechanism; wherein the kitchen waste treatment mechanism is suitable for hydraulically filtering impurities and three-phase separation of the slurry produced by the kitchen waste and kitchen waste treatment mechanism, so as to obtain solid slag, organic solid phase, Water phase and oil phase; the fully mixed anaerobic mechanism is suitable for anaerobic fermentation to obtain biogas, biogas slurry and biogas residue; the oil storage mechanism is suitable for storing oil; the present invention replaces manual sorting by an efficient and stable automatic sorting component. Selection, saving manpower, safety and environmental protection, reducing the kitchen waste treatment organization under the condition of disposing with the kitchen waste treatment organization, improving the utilization rate of equipment, further deepening the "three modernization" disposal of kitchen waste, increasing the oil extraction process, and effectively extracting Grease in kitchen waste.
Description
Technical Field
The invention belongs to the technical field of garbage classification treatment, and particularly relates to a kitchen waste and kitchen waste co-treatment system and a co-treatment method.
Background
The existing kitchen waste treatment process comprises bag breaking, manual separation, squeezing solid-liquid separation and wet anaerobic/dry anaerobic treatment. Solve the problem of the package of the plastic bag in the kitchen garbage through breaking the bag, sort out the inorganic matters in the kitchen garbage through the manual sorting mode as follows: plastic bags, fabrics, plastic bottles, ironware and the like, the sorted materials enter squeezing equipment to realize solid-liquid separation, solid residues are subjected to dry anaerobic fermentation or incineration and landfill treatment, and slurry enters a water treatment system or is subjected to wet anaerobic fermentation.
Manual separation among the prior art, artifical separation efficiency is low, and the labour cost is with high costs, has potential safety hazard and environmental pollution influence simultaneously to solid content rate is high, organic matter loss rate in the thick liquid, and has the grease in the rubbish from cooking, if do not draw the grease, can influence follow-up full anaerobic system's that mixes stability, cause the pollution of follow-up water treatment, the extravagant resource.
Therefore, it is necessary to develop a new co-processing system and a new co-processing method for kitchen waste and kitchen waste to solve the above problems.
Disclosure of Invention
The invention aims to provide a cooperative treatment system and a cooperative treatment method for kitchen waste and kitchen waste.
In order to solve the technical problem, the invention provides a kitchen waste and kitchen waste co-processing system, which comprises: the kitchen waste treatment device comprises a kitchen waste treatment mechanism, a full-mixing anaerobic mechanism, an incineration mechanism and a grease storage mechanism; the kitchen waste treatment mechanism is suitable for separating kitchen waste into solid residue and slurry, namely the kitchen waste treatment mechanism is suitable for performing filter pressing, impurity removal and three-phase separation on the kitchen waste and the slurry produced by the kitchen waste treatment mechanism to obtain solid residue, an organic solid phase, a water phase and an oil phase; the full-mixing anaerobic mechanism is suitable for performing anaerobic fermentation on the slurry separated by the kitchen waste treatment mechanism or the organic solid-phase and water-phase mixture produced by the kitchen waste treatment mechanism to obtain biogas, biogas slurry and biogas residues; the incineration mechanism is suitable for incinerating solid slag and biogas slag produced by the kitchen waste treatment mechanism, the kitchen waste treatment mechanism and the full-mixing anaerobic mechanism to generate power; and the grease storage mechanism is suitable for storing grease separated from the oil phase by the kitchen waste treatment mechanism.
Further, kitchen garbage disposal mechanism includes: the material receiving assembly, the crushing assembly, the automatic sorting assembly, the pressing solid-liquid separation assembly and the sand setting treatment assembly are sequentially arranged; the material receiving assembly is suitable for conveying kitchen waste to the crushing assembly, and free water in the kitchen waste is drained out and enters the sand setting processing assembly for sand setting caching; the automatic sorting component is suitable for screening out large sundries from the broken kitchen garbage according to the particle size and conveying the large sundries to the burning mechanism; the squeezing solid-liquid separation component is suitable for carrying out solid-liquid separation on the undersize materials sorted by the automatic sorting component into solid slag and slurry, namely the squeezing solid-liquid separation component conveys the solid slag to the burning mechanism and conveys the slurry to the sand setting treatment component; the grit processing assembly is suitable for removing free water in kitchen waste and settled and suspended grit in slurry.
Further, connect the material subassembly to include: a kitchen waste receiving hopper and a double-shaft screw conveyor; the crushing assembly comprises: a double-shaft crusher; the kitchen waste receiving hopper conveys kitchen waste through the double-shaft screw conveyor, the bottom of the double-shaft screw conveyor is provided with the draining screen plate, and the drained kitchen waste enters the double-shaft crusher to be conveyed to the automatic sorting assembly after being subjected to bag breaking and crushing treatment; and free water in the kitchen garbage is drained from the draining screen plate and enters the sand settling treatment assembly for sand settling caching.
Further, the automatic sorting assembly comprises: a star plate rolling screen, a shaftless screw conveyor and a bucket elevator; the star-shaped disc rolling sieve is suitable for screening out large sundries from the crushed kitchen garbage according to the particle size, and conveying the large sundries to the incineration mechanism through a shaftless screw conveyor and a bucket elevator; and the undersize products separated by the automatic separation component are conveyed to the squeezing solid-liquid separation component through a shaftless screw conveyor.
Further, the squeezing solid-liquid separation assembly comprises: a press; the sand setting processing assembly comprises: a sand setting buffer tank; the squeezer separates solid and liquid of undersize materials separated by the automatic separation component into solid slag and slurry, namely the squeezer conveys the solid slag to an incineration mechanism through a bucket elevator, and the slurry flows to a sand setting buffer tank from the squeezer; and the grit buffer tank removes free water in the kitchen garbage and deposited and suspended gravel in the slurry through rotational flow grit.
Further, kitchen garbage processing mechanism includes: a filter-pressing impurity removal component and a three-phase separation component; the filter-pressing impurity removal assembly is suitable for receiving the slurry conveyed by the sand setting buffer tank, and conveying the slurry to the three-phase separation assembly after filter-pressing impurity removal; the three-phase separation module is adapted to separate an organic solid phase, an aqueous phase and an oil phase from a slurry.
Further, the filter-pressing edulcoration subassembly includes: filter presses and cooking pots; the filter press is suitable for removing impurities from the slurry and the kitchen waste, and the slurry is cooked by the cooking tank and then conveyed to the three-phase separation assembly.
Further, the three-phase separation assembly includes: a three-phase separator; the three-phase separator is suitable for separating an organic solid phase, a water phase and an oil phase from the slurry, namely, a mixture of the organic solid phase and the water phase is conveyed to a full-mixing anaerobic mechanism for anaerobic fermentation to obtain biogas, biogas slurry and biogas residues; the grease separated from the oil phase is conveyed to a grease storage mechanism.
On the other hand, the invention provides a kitchen waste and kitchen waste co-processing method, which comprises the following steps: separating the kitchen waste into solid residue and slurry; carrying out filter pressing, impurity removal and three-phase separation on the slurry and the kitchen waste to obtain solid residues, an organic solid phase, a water phase and an oil phase; performing anaerobic fermentation on the mixture of the organic solid phase and the water phase to obtain biogas, biogas slurry and biogas residues; burning the solid slag and the biogas slag to generate power; and storing the grease separated from the oil phase.
Further, the kitchen waste and kitchen waste co-processing method is suitable for processing the kitchen waste and kitchen waste by adopting the kitchen waste and kitchen waste co-processing system.
The kitchen waste treatment device has the beneficial effects that manual separation is replaced by the efficient and stable automatic separation component, so that the kitchen waste treatment device is labor-saving, safe and environment-friendly, the kitchen waste treatment device is reduced under the condition of treatment with the kitchen waste treatment device, the utilization rate of equipment is improved, the 'triple' treatment of kitchen waste is further deepened, the treated slurry is subjected to sand setting and filter pressing for further impurity removal, the solid content rate in the slurry is reduced, the loss rate of organic matters is effectively reduced, the oil extraction process of the three-phase separator is increased, the grease in the kitchen waste is effectively extracted, the stability of a subsequent full-mixing anaerobic mechanism is improved, and the influence on subsequent water treatment is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a kitchen waste and kitchen waste co-processing system according to the present invention;
FIG. 2 is a schematic block diagram of the kitchen waste and kitchen waste co-processing system of the present invention;
FIG. 3 is a flow chart of the method for co-processing kitchen waste and kitchen waste according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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.
Example 1
FIG. 1 is a block diagram of a kitchen waste and kitchen waste co-processing system according to the present invention;
FIG. 2 is a schematic block diagram of the kitchen waste and kitchen waste co-processing system of the present invention.
In this embodiment, as shown in fig. 1 and fig. 2, the present embodiment provides a system for co-processing kitchen waste and kitchen waste, which includes: the kitchen waste treatment device comprises a kitchen waste treatment mechanism, a full-mixing anaerobic mechanism, an incineration mechanism and a grease storage mechanism; the kitchen waste treatment mechanism is suitable for separating kitchen waste into solid residue and slurry, namely the kitchen waste treatment mechanism is suitable for performing filter pressing, impurity removal and three-phase separation on the kitchen waste and the slurry produced by the kitchen waste treatment mechanism to obtain solid residue, an organic solid phase, a water phase and an oil phase; the full-mixing anaerobic mechanism is suitable for performing anaerobic fermentation on the slurry separated by the kitchen waste treatment mechanism or the organic solid-phase and water-phase mixture produced by the kitchen waste treatment mechanism to obtain biogas, biogas slurry and biogas residues; the incineration mechanism is suitable for incinerating solid slag and biogas slag produced by the kitchen waste treatment mechanism, the kitchen waste treatment mechanism and the full-mixing anaerobic mechanism to generate power; and the grease storage mechanism is suitable for storing grease separated from the oil phase by the kitchen waste treatment mechanism.
In this embodiment, this embodiment replaces manual separation through high-efficient stable automatic separation subassembly, use manpower sparingly, safety ring protects, reduce kitchen garbage processing mechanism under the condition of handling with kitchen garbage processing mechanism, improve equipment utilization rate, further deepening "the triplex" of kitchen garbage and handling, the thick liquid after handling carries out the sand setting, the further edulcoration of filter-pressing, reduce the solid rate that contains in the thick liquid, effectively reduce organic matter loss rate, increase the three-phase separating centrifuge and carry out the oil process, effectively extract the grease in the kitchen garbage, improve follow-up full-mixing anaerobic mechanism's stability, reduce the influence to follow-up water treatment.
In this embodiment, the kitchen waste disposal mechanism includes: the material receiving assembly, the crushing assembly, the automatic sorting assembly, the pressing solid-liquid separation assembly and the sand setting treatment assembly are sequentially arranged; the material receiving assembly is suitable for conveying kitchen waste to the crushing assembly, and free water in the kitchen waste is drained out and enters the sand setting processing assembly for sand setting caching; the automatic sorting component is suitable for screening out large sundries from the broken kitchen garbage according to the particle size and conveying the large sundries to the burning mechanism; the squeezing solid-liquid separation component is suitable for carrying out solid-liquid separation on the undersize materials sorted by the automatic sorting component into solid slag and slurry, namely the squeezing solid-liquid separation component conveys the solid slag to the burning mechanism and conveys the slurry to the sand setting treatment component; the grit processing assembly is suitable for removing free water in kitchen waste and settled and suspended grit in slurry.
In this example, the large miscellaneous materials are screened out into plastic bags, plastic cloths, plastic bottles, cloth products, ironware, etc. according to the particle size.
In this embodiment, the material receiving assembly includes: a kitchen waste receiving hopper and a double-shaft screw conveyor; the crushing assembly comprises: a double-shaft crusher; the kitchen waste receiving hopper conveys kitchen waste through the double-shaft screw conveyor, the bottom of the double-shaft screw conveyor is provided with the draining screen plate, and the drained kitchen waste enters the double-shaft crusher to be conveyed to the automatic sorting assembly after being subjected to bag breaking and crushing treatment; and free water in the kitchen garbage is drained from the draining screen plate and enters the sand settling treatment assembly for sand settling caching.
In this embodiment, kitchen garbage connects effective volume of hopper to be 40m, and biax screw conveyer's conveying capacity is 20t/h, and wherein biax screw conveyer bottom sets up the waterlogging caused by excessive rainfall otter board, and free water in the garbage that will cook among the transportation process drips out, gets into the grit and handles the buffering in the subassembly.
In the embodiment, the kitchen waste is subjected to bag breaking and crushing treatment by a double-shaft shredder, the treatment capacity of the double-shaft shredder is not less than 15t/h, and the particle size after crushing is not more than 60 mm.
In this embodiment, the automatic sorting assembly includes: a star plate rolling screen, a shaftless screw conveyor and a bucket elevator; the star-shaped disc rolling sieve is suitable for screening out large sundries from the crushed kitchen garbage according to the particle size, and conveying the large sundries to the incineration mechanism through a shaftless screw conveyor and a bucket elevator; and the undersize products separated by the automatic separation component are conveyed to the squeezing solid-liquid separation component through a shaftless screw conveyor.
In the embodiment, the star-disk rolling screen device screens out large impurities such as plastic bags, plastic cloth, plastic bottles, cloth products, ironware and the like through particle size, conveys the large impurities to the bucket elevator through the shaftless screw conveyor, and then enters the incineration mechanism for incineration treatment, and the processing capacity of the star-disk rolling screen is not less than 15 t/h.
In this embodiment, the pressing solid-liquid separation assembly includes: a press; the sand setting processing assembly comprises: a sand setting buffer tank; the squeezer separates solid and liquid of undersize materials separated by the automatic separation component into solid slag and slurry, namely the squeezer conveys the solid slag to an incineration mechanism through a bucket elevator, and the slurry flows to a sand setting buffer tank from the squeezer; and the grit buffer tank removes free water in the kitchen garbage and deposited and suspended gravel in the slurry through rotational flow grit.
In this embodiment, the screened objects after being sorted are conveyed to a squeezer through a shaftless screw conveyor, the squeezer adopts a principle of spiral reducing squeezing, the processing capacity of the equipment is not less than 10t/h, solid-liquid separation of kitchen waste can be realized, solid residues are conveyed to a bucket elevator and then enter an incineration mechanism for incineration, and slurry automatically flows to a sand setting buffer tank for sand setting treatment.
In this embodiment, the squeezed slurry enters a grit buffer tank, sediment and suspended gravel in the slurry are removed according to the principle of cyclone grit settling, and the effective volume of the grit buffer tank is 5m for cultivation; the slurry after sand settling has two subsequent treatment modes, and directly enters a full-mixing anaerobic system for anaerobic fermentation or enters a full-mixing anaerobic mechanism for anaerobic fermentation after filter pressing, three-phase separation, impurity removal and oil extraction by a kitchen waste treatment mechanism.
In this embodiment, the kitchen waste disposal mechanism includes: a filter-pressing impurity removal component and a three-phase separation component; the filter-pressing impurity removal assembly is suitable for receiving the slurry conveyed by the sand setting buffer tank, and conveying the slurry to the three-phase separation assembly after filter-pressing impurity removal; the three-phase separation module is adapted to separate an organic solid phase, an aqueous phase and an oil phase from a slurry.
In this embodiment, kitchen garbage directly drops into filter-pressing edulcoration subassembly, and filter-pressing edulcoration subassembly can follow filtering fibre in the kitchen garbage, and the fibre is transported to burning the mechanism and is burned the electricity generation.
In this embodiment, the filter-pressing edulcoration subassembly includes: filter presses and cooking pots; the filter press is suitable for removing impurities from the slurry and the kitchen waste, and the slurry is cooked by the cooking tank and then conveyed to the three-phase separation assembly.
In the embodiment, if the oil content of the slurry after sand settling is higher and the condition of entering a full-mixing anaerobic mechanism is not met, oil extraction treatment is needed, the slurry is firstly processed by a filter press, the processing capacity of the filter press is not less than 15t/h, the aperture of a screen mesh is not more than 1mm, the slurry after impurity removal by the filter press enters a three-phase separator when the temperature of the slurry in a cooking tank reaches 75-80 ℃, the processing capacity of the three-phase separator is 6-12 t/h, a water phase, an organic solid phase and an oil phase are separated, the water phase and the organic solid phase are mixed and then enter the full-mixing anaerobic mechanism, and the oil is sold after being stored.
In this embodiment, the three-phase separation assembly includes: a three-phase separator; the three-phase separator is suitable for separating an organic solid phase, a water phase and an oil phase from the slurry, namely, a mixture of the organic solid phase and the water phase is conveyed to a full-mixing anaerobic mechanism for anaerobic fermentation to obtain biogas, biogas slurry and biogas residues; the grease separated from the oil phase is conveyed to a grease storage mechanism.
In this embodiment, the incineration mechanism includes: the household garbage incinerator is suitable for incineration power generation.
In this embodiment, the total mixing anaerobic mechanism includes: the full-mixing anaerobic tank has the volume of 3300m, the stay time of materials in the full-mixing anaerobic tank is 30 days, the materials are subjected to medium-temperature anaerobic treatment to generate biogas, biogas slurry and biogas residues, for example, the biogas enters a household garbage incinerator for mixed combustion power generation, the biogas slurry enters a percolate treatment center for further treatment, and the biogas residues enter the household garbage incinerator for incineration.
In this embodiment, compared with the kitchen waste co-processing system, the kitchen waste co-processing system has the background technical innovation that efficient, automatic, environment-friendly and safe sorting equipment is adopted for sorting, and the automatic sorting equipment is selected, so that the system stability is improved, the labor is saved, and the system is safe and environment-friendly; the treated slurry is subjected to sand setting and filter pressing for further impurity removal, so that the solid content in the slurry is reduced, and the loss rate of organic matters is effectively reduced; the treatment process of the rear section can be adjusted at any time, the oil extraction process of the three-phase separator is added, the oil in the kitchen garbage is effectively extracted, the stability of the subsequent full-mixing anaerobic mechanism is improved, and the influence on the subsequent water treatment is reduced; on the background of cooperative treatment of kitchen waste and kitchen waste, kitchen waste treatment mechanisms are reduced, equipment utilization rate is improved, investment cost and operation cost are reduced, and meanwhile good process adaptability and popularization are achieved; the method simplifies the process, improves the adaptability of the system, greatly saves the occupied area, can utilize favorable boundary conditions of the incineration of the kitchen waste and the household waste, deepens the resource utilization of the kitchen waste, strengthens the harmless disposal capability of the kitchen waste, and also extremely achieves the reduction treatment.
Example 2
FIG. 3 is a flow chart of the method for co-processing kitchen waste and kitchen waste according to the present invention.
On the basis of embodiment 1, as shown in fig. 3, this embodiment provides a method for co-processing kitchen waste and kitchen waste, which includes: separating the kitchen waste into solid residue and slurry; carrying out filter pressing, impurity removal and three-phase separation on the slurry and the kitchen waste to obtain solid residues, an organic solid phase, a water phase and an oil phase; performing anaerobic fermentation on the mixture of the organic solid phase and the water phase to obtain biogas, biogas slurry and biogas residues; burning the solid slag and the biogas slag to generate power; and storing the grease separated from the oil phase.
In this embodiment, the kitchen waste and kitchen waste co-processing method is suitable for processing kitchen waste and kitchen waste by using the kitchen waste and kitchen waste co-processing system provided in embodiment 1.
In this embodiment, the kitchen waste and kitchen waste co-processing system is described in the above embodiments.
In conclusion, the kitchen waste treatment mechanism is reduced under the condition of treatment with the kitchen waste treatment mechanism, the utilization rate of equipment is improved, the 'three-way' treatment of the kitchen waste is further deepened, the treated slurry is subjected to sand setting and filter pressing for further impurity removal, the solid content of the slurry is reduced, the organic matter loss rate is effectively reduced, the oil extraction process of the three-phase separator is increased, the grease in the kitchen waste is effectively extracted, the stability of a subsequent full-mixing anaerobic mechanism is improved, and the influence on subsequent water treatment is reduced.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a kitchen garbage and kitchen garbage coprocessing system which characterized in that includes:
the kitchen waste treatment device comprises a kitchen waste treatment mechanism, a full-mixing anaerobic mechanism, an incineration mechanism and a grease storage mechanism; wherein
The kitchen waste disposal mechanism is suitable for separating kitchen waste into solid residue and slurry, namely
The kitchen waste treatment mechanism is suitable for performing filter pressing, impurity removal and three-phase separation on slurry produced by the kitchen waste and kitchen waste treatment mechanism to obtain solid residues, an organic solid phase, a water phase and an oil phase;
the full-mixing anaerobic mechanism is suitable for performing anaerobic fermentation on the slurry separated by the kitchen waste treatment mechanism or the organic solid-phase and water-phase mixture produced by the kitchen waste treatment mechanism to obtain biogas, biogas slurry and biogas residues;
the incineration mechanism is suitable for incinerating solid slag and biogas slag produced by the kitchen waste treatment mechanism, the kitchen waste treatment mechanism and the full-mixing anaerobic mechanism to generate power; and
the grease storage mechanism is suitable for storing grease separated from the oil phase by the kitchen waste treatment mechanism.
2. The kitchen waste and kitchen waste co-processing system according to claim 1,
kitchen garbage treatment mechanism includes: the material receiving assembly, the crushing assembly, the automatic sorting assembly, the pressing solid-liquid separation assembly and the sand setting treatment assembly are sequentially arranged;
the material receiving assembly is suitable for conveying kitchen waste to the crushing assembly, and free water in the kitchen waste is drained out and enters the sand setting processing assembly for sand setting caching;
the automatic sorting component is suitable for screening out large sundries from the broken kitchen garbage according to the particle size and conveying the large sundries to the burning mechanism; and
the squeezing solid-liquid separation component is suitable for carrying out solid-liquid separation on the undersize products separated by the automatic separation component into solid slag and slurry, namely
The squeezing solid-liquid separation component conveys solid slag to the incineration mechanism, and the squeezing solid-liquid separation component conveys slurry to the sand setting treatment component;
the grit processing assembly is suitable for removing free water in kitchen waste and settled and suspended grit in slurry.
3. The kitchen waste and kitchen waste co-processing system according to claim 2,
connect the material subassembly to include: a kitchen waste receiving hopper and a double-shaft screw conveyor;
the crushing assembly comprises: a double-shaft crusher;
the kitchen waste receiving hopper conveys kitchen waste through the double-shaft screw conveyor, the bottom of the double-shaft screw conveyor is provided with the draining screen plate, and the kitchen waste after draining enters
The double-shaft crusher is used for conveying the kitchen garbage to the automatic sorting assembly after bag breaking and crushing treatment; and
free water in the kitchen garbage is drained from the draining screen plate and enters a sand settling treatment assembly for sand settling caching.
4. The kitchen waste and kitchen waste co-processing system according to claim 3,
the automatic sorting assembly comprises: a star plate rolling screen, a shaftless screw conveyor and a bucket elevator;
the star-shaped disc rolling sieve is suitable for screening out large sundries from the crushed kitchen garbage according to the particle size, and conveying the large sundries to the incineration mechanism through a shaftless screw conveyor and a bucket elevator; and
and the undersize products separated by the automatic separation component are conveyed to the squeezing solid-liquid separation component through a shaftless screw conveyor.
5. The kitchen waste and kitchen waste co-processing system according to claim 4,
the squeeze solid-liquid separation assembly comprises: a press;
the sand setting processing assembly comprises: a sand setting buffer tank;
the squeezer separates solid and liquid of the undersize materials separated by the automatic separation component into solid slag and serous fluid, namely
The squeezer conveys solid slag to an incineration mechanism through a bucket elevator, and slurry automatically flows to a sand setting cache tank from the squeezer; and
the grit buffer tank removes free water in kitchen garbage and deposited and suspended gravel in slurry through rotational flow grit.
6. The kitchen waste and kitchen waste co-processing system according to claim 5,
kitchen garbage processing mechanism includes: a filter-pressing impurity removal component and a three-phase separation component;
the filter-pressing impurity removal assembly is suitable for receiving the slurry conveyed by the sand setting buffer tank, and conveying the slurry to the three-phase separation assembly after filter-pressing impurity removal;
the three-phase separation module is adapted to separate an organic solid phase, an aqueous phase and an oil phase from a slurry.
7. The kitchen waste and kitchen waste co-processing system according to claim 6,
the filter-pressing edulcoration subassembly includes: filter presses and cooking pots;
the filter press is suitable for removing impurities from the slurry and the kitchen waste, and the slurry is cooked by the cooking tank and then conveyed to the three-phase separation assembly.
8. The kitchen waste and kitchen waste co-processing system according to claim 7,
the three-phase separation assembly includes: a three-phase separator;
the three-phase separator is adapted to separate an organic solid phase, a water phase and an oil phase from the slurry, i.e.
Conveying the mixture of the organic solid phase and the water phase to a full-mixing anaerobic mechanism for anaerobic fermentation to obtain biogas, biogas slurry and biogas residues;
the grease separated from the oil phase is conveyed to a grease storage mechanism.
9. A kitchen waste and kitchen waste co-processing method is characterized by comprising the following steps:
separating the kitchen waste into solid residue and slurry;
carrying out filter pressing, impurity removal and three-phase separation on the slurry and the kitchen waste to obtain solid residues, an organic solid phase, a water phase and an oil phase;
performing anaerobic fermentation on the mixture of the organic solid phase and the water phase to obtain biogas, biogas slurry and biogas residues;
burning the solid slag and the biogas slag to generate power; and
storing the grease separated from the oil phase.
10. The kitchen waste and kitchen waste co-processing method according to claim 9,
the kitchen waste and kitchen waste co-processing method is suitable for processing kitchen waste and kitchen waste by adopting the kitchen waste and kitchen waste co-processing system as claimed in any one of claims 1-8.
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| CN113843254A (en) * | 2021-09-03 | 2021-12-28 | 杭州市环境集团有限公司 | Large-scale treatment method for kitchen waste treated by taking incineration as tail end |
| CN115958051A (en) * | 2022-12-02 | 2023-04-14 | 大连重工环保工程有限公司 | Food waste and kitchen waste co-processing system and processing method thereof |
| CN116037629A (en) * | 2022-10-25 | 2023-05-02 | 湖南仁和环保科技有限公司 | Kitchen waste recycling method |
| CN117483410A (en) * | 2023-11-07 | 2024-02-02 | 广州晟启能源设备有限公司 | An energy-saving zero-emission food waste treatment process and its spreading device |
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| CN116037629A (en) * | 2022-10-25 | 2023-05-02 | 湖南仁和环保科技有限公司 | Kitchen waste recycling method |
| CN115958051A (en) * | 2022-12-02 | 2023-04-14 | 大连重工环保工程有限公司 | Food waste and kitchen waste co-processing system and processing method thereof |
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Application publication date: 20210108 |