CN115634902A

CN115634902A - Kitchen waste treatment process and kitchen waste treatment system

Info

Publication number: CN115634902A
Application number: CN202211221188.3A
Authority: CN
Inventors: 毛勇位; 周康; 隋鸿志; 彭子锐; 刘兆明; 朱浩
Original assignee: China National Environmental Protection Group Co ltd
Current assignee: China National Environmental Protection Group Co ltd
Priority date: 2022-09-29
Filing date: 2022-10-08
Publication date: 2023-01-24

Abstract

The embodiment of the application discloses kitchen waste treatment process and kitchen waste treatment system, wherein kitchen waste treatment process includes: decomposing the kitchen waste to obtain slurry kitchen waste and primary solid residue waste; carrying out impurity removal treatment on the slurry kitchen waste to obtain liquid kitchen waste and secondary solid residue waste; and carrying out grease separation treatment on the liquid kitchen waste to obtain crude grease liquid, organic phase liquid and three-stage solid residue waste. By the kitchen waste treatment process provided by the embodiment of the application, crude oil and organic solid residues in the kitchen waste can be fully recycled, and the utilization rate of useful resources in the kitchen waste can be improved; the garbage amount that can greatly reduced innocent treatment can reduce refuse treatment's cost, and the kitchen garbage processing technology that this application embodiment provided can skid-mount within the box, the building of the kitchen garbage processing technology of being convenient for, the transportation and the use of the kitchen garbage processing system of being convenient for.

Description

Kitchen waste treatment process and kitchen waste treatment system

Technical Field

The embodiment of the application relates to the technical field of garbage treatment, in particular to a kitchen garbage treatment process and a kitchen garbage treatment system.

Background

The kitchen waste refers to food waste and waste edible oil generated in daily life of residents and activities such as food processing, diet service, unit meal supply and the like except daily life of residents. Including food and beverage rubbish and kitchen garbage, food and beverage rubbish includes: food residues of restaurants, unit canteens and the like and processing wastes of fruits, vegetables, meat, grease, pastry and the like in post-cooking; kitchen garbage: discarded fruit and vegetable and food leftovers, peels and the like in daily life of a family are easy to eat machine garbage.

The treatment of kitchen waste in China is still in a starting stage, at present, most kitchen waste is directly buried or incinerated, and on one hand, the utilization rate of organic resources in the kitchen waste is low; on the other hand, a large amount of land needs to be planned to treat the kitchen waste, so that the waste treatment cost is high, and the environment is easily polluted.

Disclosure of Invention

The present invention has been made to solve at least one of the problems occurring in the prior art or the related art.

Therefore, the invention provides a kitchen waste treatment process in a first aspect.

The invention provides a kitchen waste treatment system in a second aspect.

In view of this, according to a first aspect of the embodiments of the present application, a kitchen waste treatment process is provided, including:

decomposing the kitchen waste to obtain slurry kitchen waste and primary solid residue waste;

carrying out impurity removal treatment on the slurry kitchen waste to obtain liquid kitchen waste and secondary solid residue waste;

and carrying out grease separation treatment on the liquid kitchen waste to obtain crude grease liquid, organic phase liquid and three-stage solid residue waste.

In a possible embodiment, the kitchen waste treatment process further comprises:

carrying out impurity separation treatment on the primary solid residue garbage to obtain garbage treatment process water and solid garbage;

carrying out harmless treatment on the solid garbage and the secondary solid slag garbage;

and (4) carrying out fertilizer preparation treatment on the three-stage solid residue garbage.

In a possible embodiment, the kitchen waste treatment process further includes:

and carrying out grease recycling on the crude grease liquid.

According to a second aspect of the embodiment of the application, a kitchen waste treatment system is provided, which is used for realizing the kitchen waste treatment process according to any technical scheme, and comprises the following components:

the pulping treatment component is used for decomposing the kitchen waste to obtain slurry kitchen waste and primary solid residue waste;

the impurity removal treatment component is used for removing impurities from the slurry kitchen waste to obtain liquid kitchen waste and secondary solid residue waste;

and the recovery component is used for carrying out grease separation treatment on the liquid kitchen waste to obtain crude grease liquid, organic phase liquid and three-level solid residue waste.

In one possible embodiment, the slurry processing assembly includes:

the decomposer comprises a slurry outlet pipe and a slag discharge pipe;

the impurity separator is communicated with the input end of the impurity separator, and comprises a liquid discharge port and a discharge port;

the slurry outlet pipe is communicated to the discharge chute and is used for storing slurry kitchen waste;

and the liquid outlet is communicated to the process water tank and used for storing the garbage treatment process water.

In one possible embodiment, the slurry processing assembly includes: the edulcoration processing subassembly includes:

the impurity removing machine is used for roughly filtering the slurry kitchen waste in the discharge chute;

and the impurity removal storage tank is communicated with the discharge port of the impurity separator and used for storing secondary solid residue garbage.

In one possible embodiment, the slurry processing assembly further comprises: a sterilization assembly, the sterilization assembly comprising:

the liquid output end of the impurity removing machine is communicated with the steam heater;

and the output end of the steam heater is communicated to the sterilization tank.

In one possible embodiment, the recovery assembly comprises:

the three-phase centrifuge is communicated with the sterilization tank and comprises a crude oil outlet, an organic liquid outlet and a solid residue outlet;

the organic liquid outlet is communicated with the liquid storage tank and is used for storing organic phase liquid;

the crude oil outlet is communicated to the crude oil cache tank and is used for storing crude oil liquid;

and the solid slag outlet is communicated to the transmission piece, and the transmission piece is used for conveying three-stage solid slag garbage.

In one possible embodiment, the kitchen waste disposal system further includes:

the slurrying processing assembly and the impurity removing processing assembly are arranged in the first box body;

the partition plate is arranged in the second box body and divides the second box body into a first accommodating space and a second accommodating space, and the recovery assembly is arranged in the second box body;

the control assembly is arranged in the second accommodating space, is connected with the pulping processing assembly, the impurity removing processing assembly and the recycling assembly and is used for controlling the starting and stopping of the pulping processing assembly and the recycling assembly;

the power distribution assembly is arranged in the second accommodating space and is used for electrifying the pulping assembly, the impurity removal assembly and the recovery assembly; and/or

The feeding hopper is arranged on the first box body;

the lifting piece is used for lifting the feeding hopper so as to convey the garbage in the feeding hopper to the slurrying processing assembly; and/or

The storage bin is used for storing kitchen waste;

the spiral elevator is connected with the storage bin and the slurrying processing assembly; and/or

The biological fertilizer preparation system is connected to the second box body and is used for preparing the three-level solid residue garbage into biological fertilizer; and/or

And the steam generation system is used for generating steam to sterilize the liquid kitchen waste.

In one possible embodiment, the kitchen waste disposal system further includes: an odor purification treatment assembly, the odor purification treatment assembly comprising:

the first fan is arranged on the first box body and the second box body, and the activated carbon adsorption piece is arranged towards the first fan; and/or

The second fan is arranged on the first box body and the second box body, and the output end of the second fan faces the burning system; and/or

The third fan is used for conveying the gas in the first box body and the second box body to the washing tower, the output end of the washing tower is communicated to the photocatalytic deodorization device, and the exhaust assembly is arranged at the output end of the photocatalytic deodorization device.

Compared with the prior art, the invention at least comprises the following beneficial effects: the embodiment of the application provides a kitchen waste treatment process and a kitchen waste treatment system, wherein the kitchen waste treatment process comprises the following steps: the kitchen waste is decomposed, then impurities are removed from slurry kitchen waste obtained after decomposition, finally liquid kitchen waste obtained after impurity removal is separated, crude oil liquid can be obtained, and the crude oil liquid can be used for preparing biodiesel and industrial oil resource products, so that effective utilization of crude oil in the kitchen waste is realized, further, primary solid residue waste, secondary solid residue waste and tertiary solid residue waste can be generated in the processes of decomposition, impurity removal and oil separation, wherein the primary solid residue waste and the secondary solid residue waste are considered to contain more impurities, such as plastic, wood and bamboo glass, sandstone, bone, metal, shells, ceramic chips, sandstone and fine plastic sheets, and the impurities are difficult to reuse, so that the primary solid residue waste and the secondary solid residue waste can be buried or burned for harmless treatment, the tertiary solid residue waste is subjected to impurity removal treatment, most of the tertiary solid residue waste is divided into organic matters, so that the tertiary solid residue can be used for preparation of fertilizers, and based on the facts that the crude oil treatment process provided by the embodiment of the application can fully utilize organic matters in the kitchen waste and useful kitchen waste, and useful oil resources in the kitchen waste can be recovered; meanwhile, only the first-stage solid residue garbage and the second-stage solid residue garbage need to be subjected to harmless treatment, so that the garbage amount of the harmless treatment can be greatly reduced, and the garbage treatment cost can be reduced.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic step flow chart of a kitchen waste treatment process according to an embodiment provided in the present application;

fig. 2 is a schematic structural diagram of a kitchen waste treatment system according to an embodiment of the present disclosure;

FIG. 3 is a schematic block diagram of an angle of the first tank and the slurrification processing assembly of the kitchen waste treatment system according to an embodiment of the disclosure;

FIG. 4 is a schematic block diagram of another perspective of the first tank and the slurrification treating assembly of the kitchen waste treating system in an embodiment provided herein;

fig. 5 is a schematic structural diagram of an angle of a second tank and a recycling assembly of the kitchen waste treatment system according to an embodiment of the disclosure;

FIG. 6 is a schematic structural diagram of an angle of a decomposer of a kitchen waste treatment system according to an embodiment of the present application;

fig. 7 is a schematic structural view of another angle of a decomposer of a kitchen waste treatment system according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an angle of an impurity separator of a kitchen waste treatment system according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of another angle of a impurity separator of a kitchen waste treatment system according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another angle of a impurity separator of a kitchen waste treatment system according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an angle of an impurity remover of a kitchen waste treatment system according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of another angle of an impurity removing machine of a kitchen waste treatment system according to an embodiment of the disclosure;

fig. 13 is a schematic structural diagram of an angle of an installation state of an impurity removing machine of a kitchen waste treatment system according to an embodiment of the present disclosure;

fig. 14 is a schematic structural diagram of another angle of an installation state of an impurity removing machine of a kitchen waste treatment system according to an embodiment of the present application;

FIG. 15 is a schematic structural diagram of a three-phase centrifuge of a kitchen waste treatment system according to an embodiment of the present application;

fig. 16 is a schematic perspective structural view illustrating an installation state of a three-phase centrifuge of a kitchen waste disposal system according to an embodiment of the present disclosure;

fig. 17 is another schematic perspective structural view of an installation state of a three-phase centrifuge of a kitchen waste treatment system according to an embodiment of the present disclosure.

Wherein, the correspondence between the reference numbers and the part names in fig. 2 to 17 is:

110 a first box body, 120 a second box body, 150 clapboards, 160 a control assembly and 170 a power distribution assembly;

131 decomposer, 132 impurity separator, 133 discharge tank, 134 process water tank, 135 impurity removing machine, 136 impurity removing storage tank, 137 steam heater, 138 sterilizing tank, 139 output pump, 1301 heat exchange pump, 1302 discharge pump and 1303 impurity removing pump;

141 three-phase centrifuge, 142 liquid storage tank, 143 crude grease buffer tank, 144 solid residue bucket, 145 supply pump;

1311, 1312, a driving motor, 1313 stirring pieces, 1314 pulp outlet pipes, 1315 slag discharge pipes, 1321, 1322 lifting shells, 1323 lifting augers, 1324 liquid outlet ports, 1325 liquid outlet ports, 1351, 1352 extraction pumps, 1411 crude oil outlet ports, 1412 organic liquid outlet ports and 1413 solid slag outlet ports.

Detailed Description

In order to better understand the technical solutions described above, the technical solutions of the embodiments of the present application are described in detail below with reference to the drawings and the specific embodiments, and it should be understood that the specific features of the embodiments and the embodiments of the present application are detailed descriptions of the technical solutions of the embodiments of the present application, and are not limitations of the technical solutions of the present application, and the technical features of the embodiments and the embodiments of the present application may be combined with each other without conflict.

As shown in fig. 1, a kitchen waste treatment process is provided according to a first aspect of an embodiment of the present application, including:

step 101: decomposing the kitchen waste to obtain slurry kitchen waste and primary solid residue waste;

step 102: carrying out impurity removal treatment on the slurry kitchen waste to obtain liquid kitchen waste and secondary solid residue waste;

step 103: and carrying out grease separation treatment on the liquid kitchen waste to obtain crude grease liquid, organic phase liquid and three-stage solid residue waste.

The embodiment of the application provides a kitchen waste treatment process and a kitchen waste treatment system, wherein the kitchen waste treatment process comprises: the kitchen waste is decomposed, then impurities are removed from slurry kitchen waste obtained after decomposition, finally liquid kitchen waste obtained after impurity removal is separated, crude oil liquid can be obtained, and the crude oil liquid can be used for preparing biodiesel and industrial oil resource products, so that effective utilization of crude oil in the kitchen waste is realized, further, primary solid residue waste, secondary solid residue waste and tertiary solid residue waste can be generated in the processes of decomposition, impurity removal and oil separation, wherein the primary solid residue waste and the secondary solid residue waste are considered to contain more impurities, such as plastic, wood and bamboo glass, sandstone, bone, metal, shells, ceramic chips, sandstone and fine plastic sheets, and the impurities are difficult to reuse, so that the primary solid residue waste and the secondary solid residue waste can be buried or burned for harmless treatment, the tertiary solid residue waste is subjected to impurity removal treatment, most of the tertiary solid residue waste is divided into organic matters, so that the tertiary solid residue can be used for preparation of fertilizers, and based on the facts that the crude oil treatment process provided by the embodiment of the application can fully utilize organic matters in the kitchen waste and useful kitchen waste, and useful oil resources in the kitchen waste can be recovered; meanwhile, only the first-stage solid residue garbage and the second-stage solid residue garbage need to be subjected to harmless treatment, so that the garbage amount of the harmless treatment can be greatly reduced, and the garbage treatment cost can be reduced.

It can be understood that the yield of the organic phase liquid is low, so that the liquid can be considered to be incorporated into a percolate treatment system or an outward sewage treatment plant for cooperative treatment and is discharged after reaching the standard.

In a possible embodiment, the kitchen waste treatment process further comprises: performing impurity separation treatment on the primary solid residue garbage to obtain garbage treatment process water and solid garbage; carrying out harmless treatment on the solid garbage and the secondary solid slag garbage; and (4) carrying out fertilizer preparation treatment on the three-stage solid residue garbage.

In the technical scheme, a treatment mode for the primary solid residue garbage, the secondary solid residue garbage and the tertiary solid residue garbage is further provided, and considering that the primary solid residue garbage generated after decomposition treatment may contain more liquid water, and the use of process water can be involved in the treatment process of the kitchen waste, so that the primary solid residue garbage can be subjected to impurity separation treatment to obtain two products, namely the garbage treatment process water and the solid waste, and the garbage treatment process water can be applied to a garbage treatment process, for example, the garbage treatment process water can be applied to the decomposition treatment step to improve the yield of the slurry kitchen waste; the solid garbage obtained through impurity separation treatment mainly comprises non-biodegradable light components (plastics, wood and bamboo) and heavy components (glass, sand, bones, metals, shells and the like), so the solid garbage cannot be reused and can be directly buried or burned for harmless treatment; based on the same principle, the fineness of the secondary solid residue garbage is lower than that of the solid garbage, but the main components of the garbage are also small heavy impurities (fine crushed shells, glass, ceramic chips, gravels and the like) and small light impurities (fine plastic sheets, pepper skins, pepper seeds and the like) which are difficult to biodegrade, so that the secondary solid residue garbage can be directly buried or burnt for harmless treatment in order to prevent the part of garbage from damaging equipment and reduce the treatment cost; and the main component of the three-level solid residue garbage is organic matter, so that the three-level solid residue garbage can be used for preparing fertilizers, and the utilization rate of effective matter sources in the kitchen garbage can be improved.

In a possible embodiment, the kitchen waste treatment process further includes: and carrying out grease recycling on the crude grease liquid.

In the technical scheme, the kitchen waste treatment process can also comprise the step of recycling crude oil liquid, and the crude oil liquid can be used for preparing biodiesel and industrial oil resource products, so that the kitchen waste recycling rate is higher.

As shown in fig. 2 to 17, according to a second aspect of the embodiment of the present application, a kitchen waste treatment system is provided for implementing a kitchen waste treatment process according to any of the above technical solutions, and the kitchen waste treatment system includes:

and the recovery assembly is used for carrying out grease separation treatment on the liquid kitchen waste to obtain crude grease liquid, organic phase liquid and three-stage solid residue waste.

The kitchen waste treatment system provided by the embodiment of the application is used for realizing the kitchen waste treatment process of any technical scheme, so that the kitchen waste treatment system provided by the embodiment of the application has all beneficial effects of the kitchen waste treatment process of the technical scheme.

According to the kitchen waste treatment system provided by the embodiment of the application, firstly, the kitchen waste is decomposed through the slurrying treatment component, then, the impurity removal treatment component removes impurities from the slurry kitchen waste obtained after decomposition, and finally, the recovery component separates the liquid kitchen waste obtained after impurity removal, so that crude oil liquid can be obtained, the crude oil liquid can be used for preparing biodiesel and industrial oil resource products, and the effective utilization of crude oil in the kitchen waste is realized; meanwhile, only the first-stage solid residue garbage and the second-stage solid residue garbage need to be subjected to harmless treatment, so that the garbage amount of the harmless treatment can be greatly reduced, and the garbage treatment cost can be reduced.

In one possible embodiment, as shown in figures 2 and 3, the slurry processing assembly includes: the decomposer 131, the decomposer 131 comprises a slurry outlet pipe 1314 and a slag discharge pipe 1315; the impurity separator 132, the slag discharge pipe 1315 is connected to the input end of the impurity separator 132, and the impurity separator 132 comprises a liquid discharge port 1324 and a discharge port 1325; the discharge chute 133 is communicated with the pulp outlet pipe 1314 to be communicated to the discharge chute 133 and used for storing pulp kitchen waste; the process water tank 134 and the liquid outlet 1324 are communicated to the process water tank 134 and used for storing the garbage treatment process water.

In the technical scheme, the structure of the slurrying processing assembly is further provided, the slurrying processing assembly comprises a decomposer 131, an impurity separator 132, a discharge chute 133 and a process water tank 134, based on the above, in the process of decomposition processing, kitchen waste is firstly conveyed into the decomposer 131, the decomposer 131 can grind, crush and decompose the kitchen waste to form slurry kitchen waste, the kitchen waste is slurried to form slurry kitchen waste and then conveyed to the discharge chute 133 through a slurry outlet pipe 1314 on the decomposer 131 for storage, primary solid residue waste which cannot be slurried in the kitchen waste is conveyed to the impurity separator 132, the impurity separator 132 can further process the primary solid residue waste to separate solid residue from liquid, so that process water and solid waste for waste treatment can be obtained, and process water for waste treatment can be supplied to the process water tank 134 for storage.

As shown in fig. 6 and 7, in one possible embodiment, the decomposer 131 includes: a first housing 1311, the top of the first housing 1311 being open to form a dispensing port; a rotor disposed within the first housing 1311; a driving motor 1312 disposed outside the first housing 1311 and coupled to the rotor by a belt; a stirrer 1313 connected to the rotor and located in the first housing 1311; wherein, the slurry outlet pipe 1314 and the deslagging pipe 1315 are communicated with the accommodating space in the first shell 1311.

In the technical scheme, a structure of the decomposer 131 is further provided, the decomposer 131 comprises a first shell 1311, a rotor, a driving motor 1312 and a stirring piece 1313, the driving motor 1312 drives the rotor to rotate through a belt in the working process, the rotor drives the stirring piece 1313 to rotate, the stirring piece 1313 can be in contact with the kitchen waste, and the kitchen waste is slurried in a grinding and stirring mode.

The decomposer 131 can treat the kitchen waste with high organic matter content, can integrate bag breaking, pulping and impurity separation, is particularly suitable for directly treating the kitchen waste which is not sorted, and avoids organic matter and grease loss and environmental pollution caused by pretreatment. Meanwhile, the hydraulic defibering is relatively soft, and the damage effect on the impurities such as plastics, ceramic glass and the like in the kitchen waste is far smaller than that of mechanical pulping equipment, so that sand and fine plastics mixed in the slurry are obviously reduced. Is beneficial to ensuring the purity and high yield of organic matter materials in the slurry.

As shown in fig. 8 to 10, in one possible embodiment, the impurity separator 132 includes: a second shell 1321, a slag discharge pipe 1315 is communicated to the second shell 1321; lift housing 1322, which communicates with second housing 1321; the lifting auger 1323 is arranged in the lifting shell 1322; the discharge port 1325 is provided in the lift case 1322, and the liquid discharge port 1324 is provided in the second case 1321.

In the technical solution, the structural components of the impurity separator 132 are further provided, the impurity separator 132 includes a second housing 1321, a lifting housing 1322 and a lifting auger, the impurities produced by the decomposer 131 can be directly supplied into the second housing 1321, by lifting the lifting auger 1323, the light components (plastic, wood and bamboo) and the heavy components (glass, sand, bone, metal, shell) which are not biodegradable will be lifted to the top of the lifting housing 1322 under the action of the lifting auger 1323, and the liquid water will be stored in the second housing 1321, so that the separation of solid slag and liquid water can be realized.

In one possible embodiment, the process water tank 134 includes: a tank body; and the stirrer is arranged in the tank body.

In this technical scheme, further provide the structure of technology basin 134 and constitute, technology basin 134 has included cell body and agitator, through setting up the agitator within the cell body, can make the liquid of storage within the cell body equalize as far as possible, can reduce the probability that produces the sediment within the cell body, improve the utilization ratio of cell body.

As shown in fig. 2, in a possible embodiment, the kitchen waste treatment system further includes: a discharge pump 1302 for transferring the slurry in the slurry outlet pipe 1314 to the discharge chute 133; and a trash pump 1303 for supplying the slag output through the slag discharge pipe 1315 to the impurity separator 132.

In the technical scheme, the kitchen waste treatment system may further include a discharge pump 1302 and an impurity removal pump 1303, and the discharge pump 1302 is arranged to facilitate conveying of the slurried waste produced by the decomposer 131 to the discharge chute 133, so that conveying efficiency of the slurried waste can be improved; through the setting of edulcoration pump 1303, be convenient for carry the impurity that can not pulpify among the impurity separator 132 with decomposer 131.

As shown in fig. 2, in one possible embodiment, the slurry processing assembly includes: the edulcoration processing subassembly includes: an impurity remover 135 for roughly filtering the slurry kitchen waste in the discharge chute 133; the impurity removal storage tank 136 is used for being communicated with the discharge port 1325 of the impurity separator 132 and storing the secondary solid residue garbage.

In this technical scheme, the edulcoration processing subassembly can also include the edulcoration subassembly, and the edulcoration subassembly can include shaker 135 and edulcoration hold up tank 136, and shaker 135 can be to the pulpifying kitchen garbage of storage within blowpit 133 do further processing, and shaker 135 can get rid of the tiny heavy impurity (fine crushing shell, glass, ceramic chip, grit etc.) and the tiny light impurity (tiny plastic sheet, peppery skin, peppery seed etc.) that are difficult to biodegradable in the organic thick liquid of kitchen garbage, prevents its wearing and tearing to moving equipment, pipeline and reduces subsequent processing system's load.

In this technical scheme, the edulcoration subassembly can also include edulcoration holding vessel 136, can save the impurity that impurity separator 132 separated through the setting of edulcoration holding vessel, and this part solid sediment can be carried to outside the first box and landfill or burning.

As shown in fig. 11 to 14, in one possible embodiment, the shaker 135 includes: a body 1351; a plurality of grills disposed in the body 1351 to form a plurality of filtering spaces, and a liquid outlet is opened on the body 1351 to be conducted to the filtering spaces; a detachable cover plate attached to the body 1351 for covering a plurality of grills; and a suction pump 1352 connected to the body 1351.

In the technical scheme, the structure composition of the impurity removing machine 135 is further improved, the impurity removing machine 135 can comprise a machine body 1351, a plurality of grids and an extraction pump 1352, slurried kitchen waste can be extracted among the grids through the power of the extraction pump 1352 in the working process, the slurried kitchen waste can be filtered through the grids, liquid can be conducted to the outside of the machine body 1351 through a liquid output end and is output to the inside of the process water tank 134, solid slag can be stored among the grids, and solid slag can be removed by opening the cover plate.

As shown in fig. 2 and 3, in one possible embodiment, the slurry processing assembly further includes: the subassembly disinfects, and the subassembly that disinfects includes: the liquid output end of the impurity removing machine 135 is communicated with the steam heater 137; the output end of the steam heater 137 is communicated to the sterilizing tank 138.

In this technical scheme, the slurrying processing subassembly can also be including the subassembly that disinfects, and the subassembly that disinfects can include steam heater 137 and sterilization groove 138, after tiny heavy impurity and tiny light impurity have been rejected through the edulcoration subassembly to pulpifying kitchen garbage, can carry out sterilization treatment through the subassembly that disinfects, in the concrete working process, pulpifying kitchen garbage after having rejected tiny heavy impurity and tiny light impurity carries to sterilization groove 138 through steam heater 137, pulpifying kitchen garbage carries out the mixed sterilization through steam heater 137 and high temperature steam, pulpifying garbage after disinfecting stores again within sterilization groove 138, so set up and make kitchen garbage's utilization safer, be convenient for follow-up to the recycle of resource products such as biodiesel, industrial grease.

It can be understood that the sterilization tank 138 can store the sterilized slurried kitchen waste, and when recycling resource products such as biodiesel and industrial grease are performed, the slurried kitchen waste in the sterilization tank 138 can be directly sold to recycling factories, or the slurried kitchen waste in the sterilization tank 138 can be conveyed to a recycling system for recycling resources.

It can be understood that the sterilization component can increase the temperature of the slurry, separate out grease contained in the slurry, and simultaneously has the sterilization effect, so that the number of harmful pathogenic bacteria is reduced. The kitchen waste slurry after impurity removal is heated to 70-90 ℃ by a steam heater 137, enters a sterilization tank 138 for cooking and sterilization, can fully separate out grease, and can prepare for oil extraction.

In one possible embodiment, the steam heater 137 includes: the liquid output end of the impurity remover 135 is communicated with one end of the medium pipeline, and the other end of the medium pipeline is communicated with the sterilization tank 138; and the steam conveying pipeline is communicated to one side of the medium pipeline.

In the technical scheme, a structure of the steam heater 137 is further provided, the steam heater 137 comprises a medium pipeline and a steam conveying pipeline, the slurried kitchen waste after the fine heavy impurities and the fine light impurities are removed enters the sterilization tank 138 through the medium pipeline, high-temperature steam can be supplied in the process through the lateral direction of the medium channel, and the high-temperature steam and the slurried kitchen waste can be mixed for sterilization.

It will be appreciated that to increase the efficiency of the sterilization, a grate may be provided in the media conduit to increase the efficiency of the steam contact with the slurried waste.

As shown in fig. 2 and 3, in a possible embodiment, the trash removal assembly further includes: and the heat exchange pump 1301 is used for pumping the liquid output by the liquid output end of the impurity remover 135 to the steam heater 137 and preheating the liquid.

In this technical scheme, the edulcoration subassembly can also include heat transfer pump 1301, so the setting has been considered, slurrification kitchen garbage's temperature may be lower, if direct with slurrification kitchen garbage supply to the subassembly that disinfects, probably lead to the inefficiency of disinfecting, probably lead to the steam quantity to increase simultaneously, probably lead to the cost of disinfecting too high, based on this, can preheat slurrification kitchen garbage through heat transfer pump 1301, improve the initial temperature of the slurrification kitchen garbage of supplying to in the steam heater 137, and then can improve the efficiency of disinfecting, reduce the steam use amount.

As shown in fig. 2, 15 to 17, in one possible embodiment, the recovery assembly comprises: the three-phase centrifuge 141 is communicated with the sterilization tank 138, and the three-phase centrifuge 141 comprises a crude oil outlet 1411, an organic liquid outlet 1412 and a solid residue outlet 1413; the liquid storage tank 142 is communicated with the organic liquid outlet 1412, and is used for storing organic phase liquid; the crude oil buffer tank 143, the crude oil outlet 1411 is communicated to the crude oil buffer tank 143 for storing crude oil liquid; and the transmission piece is arranged in the second box body, the solid slag outlet 1413 is communicated with the transmission piece, and the transmission piece is used for conveying the three-stage solid slag garbage.

In this technical scheme, further provide the structural component of retrieving the subassembly, it can include three-phase centrifuge 141 to retrieve the subassembly, the reservoir 142, coarse oil buffer tank 143 and transmission piece are in the course of the work, can supply kitchen garbage within three-phase centrifuge 141, then open three-phase centrifuge 141, do benefit to centrifugal force three-phase centrifuge 141 and can be based on three kinds of products of different output of material product, can produce the coarse oil liquid that the principal ingredients is grease when supplying kitchen garbage within three-phase centrifuge 141, organic phase liquid that the principal ingredients is organic matter and water and tertiary solid sediment rubbish that the principal ingredients is solid sediment, further coarse oil liquid can be stored in coarse oil buffer tank 143, organic phase liquid can be stored in reservoir 142, tertiary solid sediment rubbish is then carried outside the second box through the transmission piece. Furthermore, the reuse of the crude oil liquid can be realized only by transferring the crude oil liquid through the crude oil buffer tank 143, for example, biodiesel and industrial oil resource products can be prepared; the organic phase liquid can be used as process water, and meanwhile, the organic phase liquid can be directly supplied and merged into a leachate treatment system or sent out to a sewage treatment plant for cooperative treatment, and is discharged after reaching the standard, considering that the yield of the organic phase liquid is lower; the three-stage solid residue garbage can be conveyed through the conveying piece, and the solid residue garbage can be further recycled, such as organic fertilizer, insect feed or bio-fertilizer preparation.

As shown in fig. 2, in some examples, an output pump 139 may be further disposed inside the first box 110, and the output pump 139 is connected to the sterilizing tank 138 and is used for conveying the slurry in the sterilizing tank 138 to a three-phase conveying centrifuge 141.

As shown in fig. 2, in a possible embodiment, the kitchen waste treatment system further includes: the device comprises a first box body 110 and a second box body 120, wherein a slurrying processing component and an impurity removing processing component are arranged in the first box body 110; a partition 150 disposed in the second casing 120 to divide the second casing 120 into a first accommodating space and a second accommodating space, the recovery assembly being disposed in the second casing 120; the control assembly 160 is arranged in the second accommodating space, and the control assembly 160 is connected to the slurrying processing assembly, the impurity removing processing assembly and the recovery assembly and is used for controlling the start and stop of the slurrying processing assembly and the recovery assembly; and the power distribution assembly 170 is arranged in the second accommodating space and is used for powering the slurrying processing assembly, the impurity removing processing assembly and the recovery assembly.

In this technical scheme, kitchen garbage processing system can also include first box 110 and second box 120, slurrying processing subassembly and edulcoration processing subassembly set up within first box 110, the recovery subassembly sets up within second box 120, can make kitchen garbage processing system modularization based on this, sled dress ization, be convenient for to kitchen garbage processing system's transportation and assembly, if can directly set up the kitchen garbage processing system that this application embodiment provided on the vehicle, the removal through the vehicle can drive kitchen garbage processing system and remove, make kitchen garbage processing system's application more nimble, can handle kitchen garbage anytime and anywhere.

In this technical scheme, baffle 150 can also be provided with within the second box 120, can separate second box 120 for two accommodation space through baffle 150, and the functional device that recovery subassembly is used for refuse treatment all sets up within first accommodation space, control assembly 160 and the distribution subassembly 170 that is used for control and distribution then set up at the second accommodation space, on this basis, through second box 120 for control assembly 160 and distribution subassembly 170 provide the mounted position equally, make the device modularization, the sled dress ization, be convenient for to the transportation and the assembly of kitchen garbage processing system, if can directly set up the kitchen garbage processing system that this application embodiment provided on the vehicle, can drive kitchen garbage processing system through the removal of vehicle and remove, make kitchen garbage processing system's application more nimble, can handle kitchen garbage anytime and anywhere. Meanwhile, the partition board 150 can be used for separating functional devices and electrical devices, so that the kitchen waste treatment system is safer and more convenient to use.

In this embodiment, in consideration of the fact that the number of functional devices provided in the second box 120 is smaller than that of the first box 110, the power distribution unit 170 and the control unit 160 are provided in the second box 120, which can improve the space utilization.

In a possible embodiment, an adapter is disposed on the second box 120 and is connected to the reservoir 142; and an output pipeline connected to the adapter port, for outputting the medium in the reservoir 142 to the outside of the second box 120.

In this technical scheme, an adapter port is further formed on the second box 120, and the kitchen waste treatment system may further include an output pipeline, and the output pipeline is communicated with the adapter port, so that the output of the organic phase liquid in the liquid storage tank 142 may be realized.

In a possible embodiment, the kitchen waste treatment system further comprises: the crude oil storage tank is arranged outside the second box body 120 and is communicated with the crude oil cache tank 143; and the oil outlet pump is arranged between the crude oil storage tank and the crude oil buffer tank 143.

In this technical scheme, kitchen garbage processing system can also include crude oil storage jar and oil outlet pump, so set up to consider that the output of crude oil liquid is great, consequently when crude oil liquid is stored through crude oil buffer tank 143 within the second box 120, the storage pressure of crude oil buffer tank 143 is great, consequently, can set up external crude oil storage jar outside second box 120, buffer tank 143 can only play the caching role based on this crude oil, turn and share crude oil storage jar with storage pressure, extract the multiplexing that can realize crude oil to crude oil liquid in the crude oil storage jar again. And the crude grease liquid in the crude grease buffer tank 143 can be conveniently conveyed to the crude grease storage tank by the arrangement of the oil outlet pump.

As shown in fig. 2, in a possible embodiment, the skid-mounted kitchen waste disposal system further includes: and the solid slag hopper 144 is arranged outside the second box body 120, and one end of the transmission piece is communicated with the solid slag hopper 144.

In this technical scheme, sled dress formula kitchen garbage processing system can also include solid sediment fill 144, can save and buffer memory solid sediment rubbish through solid sediment fill 144, is convenient for solid sediment rubbish's utilization and transport.

In one possible embodiment, the kitchen waste disposal system further includes: a carrier vehicle, the first casing 110 and the second casing 120 being adapted to be disposed on the carrier vehicle; the hoisting piece is arranged on the side wall of the first box body 110 and/or the second box body 120; wherein the first and

second cases

110 and 120 are containers.

In this technical scheme, the kitchen waste treatment system can also include the load-bearing vehicle, can directly place first box 110 and second box 120 on the load-bearing vehicle, can drive first box 110 and second box 120 through the load-bearing vehicle removal and remove. The first box body 110 and the second box body 120 are containers, so that the strength of the box bodies can be improved, and the lifting pieces are arranged on the containers, so that the box bodies can be conveniently lifted, and the first box body 110 and the second box body 120 can be conveniently transferred to a bearing vehicle.

In a possible embodiment, the kitchen waste treatment system further comprises: a feeding hopper disposed on the first case 110; and the lifting piece is used for lifting the feeding hopper so as to convey the garbage in the feeding hopper to the slurrying treatment assembly.

In this technical scheme, kitchen garbage processing system can also include the material loading hopper and carry and draw the piece, in the course of the work, can be used for setting up kitchen garbage within the material loading hopper, can promote the material loading hopper to first box 110 department through the setting of carrying the piece, and furtherly can be with the kitchen garbage within the material loading hopper put in the slurrying processing subassembly.

In the working process, the kitchen waste can be collected and transported for barreling, a feeding hopper can be arranged at the upper end of the decomposer 131, and the whole barrel of the kitchen waste is poured into the feeding hopper and falls into the decomposer 131 through a bucket lifting mode. The top of the feeding hopper is provided with a pneumatic sealing upper cover which can be automatically opened and closed, the hopper is kept sealed when no dumping operation is carried out, and an odor collecting opening is reserved.

In a possible embodiment, the kitchen waste treatment system further comprises: the storage bin is used for storing kitchen waste; and the spiral elevator is connected with the storage bin and the slurrying processing component.

In this technical scheme, kitchen garbage processing system also can include storage silo and screw elevator, can store in a warehouse kitchen garbage through the storage silo, further can carry the kitchen garbage in the storage silo to the slurrying processing subassembly through screw elevator.

In the working process, the kitchen waste can be collected and transported by a garbage truck, and a set of buried storage bin can be arranged outside the first box body 110 and the second box body 120. The collection vehicle discharges solid and liquid garbage in the vehicle into the storage bin together, and the solid and liquid garbage is conveyed to the inlet of the decomposer 131 through a non-spiral elevator arranged at the bottom of the storage bin.

The top of the storage bin is provided with a sealing cover and is provided with a quick rolling door, the door is normally closed and opened and closed according to the operation condition to prevent odor from diffusing, an odor collecting opening (comprising a flange) is reserved in the sealing cover, the sealing cover is connected with an odor purifying treatment component, and the odor purifying treatment component is fed after negative pressure collection; the periphery of a material receiving port of the storage bin is provided with a splash-proof baffle plate which is connected with a top sealing cover to form a closed space, so that kitchen waste and leachate are prevented from splashing and infiltrating; the ground is provided with a drain pipe groove, the water is cleaned by collecting vehicles, the cleaning water is drained into the stock bin, the material can be drained without draining, the consumption of equipment related to draining is saved, and the problem of blockage frequently encountered by a draining section is solved.

In a possible embodiment, the kitchen waste treatment system further comprises: and the biological fertilizer preparation system is connected to the second box body 120 and is used for preparing the three-level solid residue garbage into biological fertilizer.

In this technical scheme, the kitchen waste treatment system further includes a bio-fertilizer preparation system, that is, the second box 120 is directly communicated to the bio-fertilizer preparation system, and the bio-fertilizer preparation system can treat the three-level solid residue waste with mechanical energy to prepare bio-fertilizer.

The biological fertilizer preparation system is used for further preparing fertilizer from the three-level solid residue garbage, and the quality of the prepared organic fertilizer product meets the requirements of the national current standard organic fertilizer (NY 525-2012).

In one possible embodiment, the kitchen waste disposal system further includes: and the steam generation system is used for generating steam to sterilize the liquid kitchen waste.

In the technical scheme, the kitchen waste treatment system can further comprise a steam generation system, steam can be generated through the steam generation system, and the steam is supplied to the steam heater 137 so that the slurry kitchen waste can be sterilized.

In a possible embodiment, the kitchen waste treatment system further comprises: an odor purification processing assembly, the odor purification processing assembly comprising: first fan and active carbon adsorption spare, first fan setting is on first box 110 and second box 120, and the active carbon adsorption spare sets up towards first fan.

In this technical scheme, it is great to consider the kitchen garbage peculiar smell, therefore kitchen garbage processing system can also include the net flavor processing subassembly, and the net flavor processing subassembly can include first fan and active carbon adsorption spare, carries the gas in first box 110 and the second box 120 to the active carbon adsorption spare through first fan, and the active carbon adsorption spare adsorbs peculiar smell material, can play the deodorization effect.

In a possible embodiment, the kitchen waste treatment system further comprises: the subassembly is handled in the flavor purification, and the flavor purification is handled the subassembly and is included: the second fan is arranged on the first box body 110 and the second box body 120, and the output end of the second fan faces the burning system.

In this technical scheme, it is great to consider the kitchen garbage peculiar smell, consequently kitchen garbage processing system can also include the net flavor processing subassembly, and the net flavor processing subassembly can include the second fan and burn the system, can be mutually the peculiar smell gas in first box 110 and the second box 120 through opening the second fan and carry to burning the system based on this, burn the system and can burn peculiar smell gas, peculiar smell gas can play combustion-supporting effect simultaneously, so set up the incineration efficiency that can improve burning the system, reduce simultaneously and burn the cost.

In a possible embodiment, the kitchen waste treatment system further comprises: the subassembly is handled in the flavor purification, and the flavor purification is handled the subassembly and is included: the third fan is used for conveying the gas in the first box body 110 and the second box body 120 to the washing tower, the output end of the washing tower is communicated to the photocatalytic deodorization device, and the exhaust assembly is arranged at the output end of the photocatalytic deodorization device.

In this technical scheme, it is great to consider the kitchen garbage peculiar smell, therefore kitchen garbage processing system can also include the purification flavor processing subassembly, and the purification flavor processing subassembly can include three fans, scrubbing tower, photocatalysis deodorizing device and exhaust subassembly, opens through the third fan, can drive peculiar smell gas and pass through scrubbing tower and photocatalysis deodorizing device successively, discharges through the exhaust subassembly finally.

The kitchen waste is complex in components and high in organic matter content, the organic matter generally exists in the form of protein, fat and polysaccharide (starch, cellulose and the like) organic matter, and various malodorous gas pollutants can be generated in the fermentation, decay and decomposition processes of the organic matter under the action of aerobic and anaerobic bacteria. The main pollutants in the odor comprise sulfur-containing and nitrogen-containing compounds, mercaptan, ammonia gas and other odor-causing components. They have the characteristics of high volatility, high odor characterization value and the like, and the emission into the surrounding environment can cause adverse effects on the environmental quality and the health of workers. Therefore, the odor source of the odor pollutant generated in the engineering treatment process needs to be isolated in local areas and collected under negative pressure to avoid odor leakage, and meanwhile, odor is collected by a tissue and enters a tail-end deodorization system to be deodorized.

The kitchen pretreatment system is arranged in the first box body 110 and the second box body 120 in a centralized manner, the box bodies are integrally sealed, odor pollutants generated in the treatment process are collected in an integral ventilation mode, and the odor pollutants can be sent into the incinerator to be treated as combustion air or be treated by the deodorization system to reach the standard and then be discharged.

Collected malodorous pollutants have two directions, one is sent to an incinerator to be used as combustion-supporting air, and in addition, a newly-added local deodorization device is added to discharge after the treatment reaches the standard.

The embodiment of the application can treat the odor by adopting a mode of combining chemical washing and photocatalysis.

After the odor from the odor source is collected through the collecting system, the third fan collects the odor to the chemical washing tower, the odor is chemically washed and then sent to the photocatalytic deodorization device to decompose the odor pollutants, and the exhaust gas is discharged through a 15m high exhaust funnel after reaching the standard.

1) Chemical washing tower

The chemical washing tower runs in a gas-liquid countercurrent mode, collected waste gas enters the tower body from a gas inlet at the bottom of the tower, passes through the packing layer from bottom to top, is discharged from a pipeline outlet at the top of the tower through the anti-corrosion fan, passes through the liquid distributor at the top of the tower through neutralization liquid medicine or oxidation liquid medicine, is uniformly sprayed into the packing layer, flows downwards along the surface of the packing layer until the bottom of the tower is discharged out of the tower through the pipeline, and is circulated by anti-corrosion circulating water. Because the ascending waste gas and the descending absorbent are continuously contacted in the packing layer, the concentration of solute in the ascending gas flow is lower and lower, and the ascending gas flow reaches the absorption requirement at the top of the tower and is discharged outside the tower. On the contrary, the medium concentration in the liquid is decreased to be higher and higher, the medium reaches the requirement of the process condition when reaching the tower bottom, and the medium is discharged out of the tower.

2) Photocatalytic device

Using TIO ₂ Purifying waste gas by photolysis technology, emitting high-energy UV photons through UV lamp tube, breaking and cracking chemical bonds of waste gas substances to generate atoms and free radicals in ion state, and performing TIO ₂ The ozone and hydroxyl free radical generated by the cracking oxidize the ozone and the hydroxyl free radical into simple and stable small-molecule non-toxic or low-toxic compounds such as CO ₂ 、H ₂ O, and the like. It is first necessary to determine the chemical bond energies of various exhaust molecules, and only if the bond energies are below the UV photon energies, can cleavage occur.

TI0 ₂ The highest energy of UV photons of the photolysis oxidation purification equipment can reach (900 kJ/mol), and the bond energy of the gas to be treated is less than 900kJ/mol, so that the energy can be easily obtained by capturing the UV photons to break chemical bonds of the gas, and the gas can be further oxidized to form a stable simple compound.

It is not enough that the exhaust gas molecules are only cracked into atoms and free radicals, but it is also necessary to oxidize them into stable small molecules, such as CO, by ozone and hydroxyl free radicals ₂ 、H ₂ O, etc., thereby achieving the purpose of purifying the waste gas. Ozone is formed by oxygen by capturing the energy of high energy UV photons and then splitting to form reactive oxygen atoms which combine with oxygen.

Based on this, according to the kitchen waste treatment process and the kitchen waste treatment system provided by the embodiment of the application, in the kitchen waste treatment process, after the kitchen waste is fed and weighed, the kitchen waste is conveyed to the slurrying treatment component through the receiving and feeding system, and two recycling products, namely crude oil liquid and three-level solid residue waste, are obtained after the treatment through the working procedures of decomposition and separation, slurry impurity removal, cooking sterilization, oil extraction and the like. The crude oil liquid can be sold for preparing resource products such as biodiesel, the three-level solid residue garbage can be directly sold for preparing fertilizer or used as resource products such as insect feed, and the like, and can be optionally matched with a biological fertilizer preparation system to prepare biological fertilizer for sale and resource utilization. Functional devices of the kitchen waste treatment system are arranged in a container in a centralized mode, the box body is sealed integrally, malodorous pollutants generated in the treatment process are collected in an integral ventilation mode, and the malodorous pollutants can be sent into an incinerator to be used as combustion-supporting air for combustion treatment or be discharged after being treated by a deodorization system to reach the standard.

In one possible embodiment, the kitchen waste disposal system further includes: and a feed pump 145 provided in the second casing 120, an output end of the feed pump 145 being connected to an input end of the three-phase centrifuge 141.

In this embodiment, considering that the three-phase centrifuge 141 is particularly suitable for processing the slurried waste, a supply pump 145 may be provided to pump the slurried waste to the three-phase centrifuge 141 through the supply pump 145, which is convenient for the utilization of the kitchen waste.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit referred to must have a specific direction, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A kitchen waste treatment process is characterized by comprising the following steps:

2. The kitchen waste treatment process according to claim 1, further comprising:

3. The kitchen waste treatment process according to claim 1, further comprising:

and carrying out grease recycling on the crude grease liquid.

4. A kitchen waste disposal system for implementing the kitchen waste disposal process defined in any one of claims 1 to 3, said kitchen waste disposal system comprising:

the pulping treatment component is used for decomposing the kitchen waste to obtain pulp kitchen waste and primary solid residue waste;

5. The kitchen waste disposal system of claim 4, wherein the slurry disposal assembly comprises:

the decomposer comprises a slurry outlet pipe and a slag discharge pipe;

the impurity separator is communicated with the input end of the impurity separator through the slag discharge pipe and comprises a liquid discharge port and a discharge port;

6. The kitchen waste disposal system of claim 5, wherein the slurry disposal assembly comprises: the edulcoration processing subassembly includes:

7. The kitchen waste disposal system of claim 6, wherein the slurry disposal assembly further comprises: a sterilization assembly, the sterilization assembly comprising:

the liquid output end of the impurity remover is communicated with the steam heater;

8. The kitchen waste disposal system of claim 7, wherein the recovery assembly comprises:

9. The kitchen waste treatment system according to any of claims 4 to 8, further comprising:

the control assembly is arranged in the second accommodating space, is connected with the slurrying processing assembly, the impurity removing processing assembly and the recovery assembly, and is used for controlling the start and stop of the slurrying processing assembly and the recovery assembly;

The feeding hopper is arranged on the first box body;

The storage bin is used for storing the kitchen waste;

The biological fertilizer preparation system is connected to the second box body and used for preparing the three-level solid residue garbage into biological fertilizer; and/or

10. The kitchen waste treatment system according to claim 9, further comprising: a scent treatment assembly, the scent treatment assembly comprising:

The device comprises a third fan, a washing tower, a photocatalytic deodorization device and an exhaust assembly, wherein the third fan is used for conveying the gas in the first box body and the gas in the second box body to the washing tower, the output end of the washing tower is communicated to the photocatalytic deodorization device, and the exhaust assembly is arranged at the output end of the photocatalytic deodorization device.