CN217535854U

CN217535854U - Organic garbage resource recycling system

Info

Publication number: CN217535854U
Application number: CN202220907692.8U
Authority: CN
Inventors: 张婷婷; 谭夏霖; 黄渝川; 张立挺; 张敏
Original assignee: Hangzhou Lvsaikelin Technology Co ltd; Zhejiang Lover Health Science and Technology Development Co Ltd
Current assignee: Hangzhou Lvsaikelin Technology Co ltd; Zhejiang Lover Health Science and Technology Development Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-10-04
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses an organic waste resource cyclic utilization system, including receiving the hopper, with the anaerobic fermentation jar of receiving the hopper and being connected, the marsh gas filter of being connected with anaerobic fermentation jar, compress part marsh gas then reverse output to anaerobic fermentation jar's marsh gas compressor, the marsh gas of being connected with marsh gas filter purifies and utilizes the system, the screw rod squeezer of being connected with anaerobic fermentation jar, the shale shaker of being connected with the screw rod squeezer, the natural pond sediment compost unit of being connected with the shale shaker, the centrifugal dehydrator of being connected with screw rod squeezer and shale shaker respectively, the sewage treatment system of being connected with centrifugal dehydrator. The utility model discloses can realize that organic waste turns into marsh gas and fertilizer, shake the garrulous compost of natural pond sediment caking through the shale shaker, can obtain high-quality curing fertilizer, can realize initial material simultaneously and ferment in advance at the leading of feed process in advance, improve the follow-up fermentation efficiency of material, through with compressing marsh gas backward flow to anaerobic fermentation jar, can further increase fermentation speed and efficiency.

Description

Organic garbage resource recycling system

Technical Field

The utility model relates to an organic refuse treatment technical field, concretely relates to organic rubbish resourceful cyclic utilization system.

Background

At present, the organic components in domestic garbage in China are continuously increased. Compared with developed countries in foreign countries, the organic components in domestic garbage in China are greatly different, the content of paper is low, the contents of kitchen garbage, green garbage and the like are high, the water content of the kitchen garbage is high, the general water content is 70% -80%, and the water content of melon peels and the like can be as high as more than 95%. The incineration of the garbage has the advantages of recycling heat energy and reducing the amount of the garbage completely, the volume of the garbage after incineration can be reduced by 80% -95%, however, the organic garbage is high in moisture, low in net heat value and not suitable for incineration, and dioxin substances are easily generated during incineration, so that serious environmental pollution is caused. Direct landfill of garbage can generate a large amount of landfill leachate, the treatment is not good, the underground water and the ground water are easy to be polluted, and the leachate has complex composition, high concentration and high treatment cost. The garbage is treated in a composting mode, so that the garbage can be changed into organic fertilizer, but the direct composting without treatment can also cause environmental pollution.

The anaerobic fermentation method is adopted to digest organic matters in the kitchen garbage, so that the reduction of the kitchen garbage can be effectively realized, and meanwhile, anaerobic microorganisms can convert the organic matters into methane, so that green energy is provided for industrial production, and the recycling of the garbage is further realized. The anaerobic fermentation process for kitchen waste is mainly divided into a wet anaerobic fermentation process and a dry anaerobic fermentation process. The application of the wet anaerobic fermentation process is the most extensive at the earliest, the solid concentration of the process is maintained below 15%, and the process has the advantages of simple process, small investment, easy operation and management and the like, but the wet anaerobic fermentation process has the defects of large water consumption, large difficulty in wastewater treatment and the like. Compared with a wet anaerobic fermentation process, the dry anaerobic fermentation process has the following obvious advantages: 1. the solid content in the dry fermentation is more than 15%, the water content is low, the organic matter concentration is high, and the gas production efficiency is high; 2. the post-treatment process is simple, and the amount of wastewater is greatly reduced; 3. the reaction process is stable and the operation cost is low. However, the existing dry anaerobic fermentation system for treating kitchen garbage has some disadvantages in system design, such as incomplete design, only biogas output capacity, no treatment of fermented organic slag, no pre-premixed fermentation in the material circulation process, long time consumption in the subsequent anaerobic fermentation treatment process, and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the defect of the prior art, the utility model provides an organic garbage resource recycling system.

The utility model discloses realize that the technical scheme that above-mentioned technological effect adopted is:

a recycling system for organic garbage includes:

the receiving hopper is used for receiving the pretreated organic garbage;

the anaerobic fermentation tank is connected with the receiving hopper through a feeding pump and is used for carrying out anaerobic fermentation on the pretreated organic garbage fed by the receiving hopper;

the biogas filter is connected with the anaerobic fermentation tank and used for receiving and filtering biogas output by the anaerobic fermentation tank, compressing part of the biogas through a biogas compressor and then reversely outputting the compressed biogas to the anaerobic fermentation tank;

the biogas purification and utilization system is connected with the biogas filter and is used for receiving the filtered biogas, purifying and burning the filtered biogas for utilization;

the screw press is connected with the anaerobic fermentation tank and is used for dehydrating the biogas residues in the anaerobic fermentation tank;

the vibrating screen is connected with the screw squeezer and is used for receiving the biogas residue agglomerates discharged by the screw squeezer and vibrating and crushing the biogas residue agglomerates;

the biogas residue composting unit is connected with the vibrating screen through a chain plate conveyor and is used for receiving the biogas residue crushed aggregates output by the vibrating screen and composting and curing the biogas residue crushed aggregates;

the centrifugal dehydrator is respectively connected with the screw squeezer and the vibrating screen and is used for receiving filtrate output by the screw squeezer and the vibrating screen;

and the sewage treatment system is connected with the centrifugal dehydrator and is used for performing harmless treatment on the centrifuged filtrate supernatant.

Preferably, in the organic waste recycling system, the anaerobic fermentation tank is further connected with a circulation pump for refluxing a part of fermentation products of the anaerobic fermentation tank to the receiving hopper.

Preferably, in the organic waste recycling system, the centrifugal dehydrator is further connected to a flocculant supply tank for feeding a flocculant into the centrifugal dehydrator.

Preferably, in the above system for recycling organic waste, a filtrate pump for refluxing part of the filtrate output by the centrifugal dehydrator to the receiving hopper is further connected between the centrifugal dehydrator and the receiving hopper.

Preferably, in the organic waste recycling system, an air outlet of the biogas compressor is connected with a one-way nozzle at the bottom of the anaerobic fermentation tank through a pressure pipe, and is used for inputting high-pressure biogas into the anaerobic fermentation tank through the one-way nozzle in a pulse manner to perform airflow stirring on materials in the anaerobic fermentation tank.

The utility model has the advantages that: the utility model discloses an organic waste resourceful cyclic utilization system can realize the full aspect cyclic utilization to the surplus class organic waste in kitchen, make organic waste turn into marsh gas and fertilizer, shake garrulous compost through the shale shaker with screw rod squeezer exhaust natural pond sediment caking, can obtain high-quality curing fertilizer, the backward flow circulation through the intermediate product simultaneously, can realize initial material and mix the fermentation in advance at the leading of feed process, improve the fermentation efficiency of material in follow-up anaerobic fermentation jar, through with compressed methane backward flow to anaerobic fermentation jar, can further increase fermentation speed and efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

For a further understanding of the invention, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples, in which:

in the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1, as shown in the drawings, an embodiment of the present invention provides an organic waste recycling system, including: the system comprises a receiving hopper, an anaerobic fermentation tank, a methane filter, a methane purification and utilization system, a screw press, a vibrating screen, a methane slag composting unit, a centrifugal dehydrator and a sewage treatment system. The receiving hopper is used for receiving the pretreated organic garbage, and the anaerobic fermentation tank is connected with the receiving hopper through the feeding pump and used for carrying out anaerobic fermentation on the pretreated organic garbage fed by the receiving hopper. The biogas filter is connected with the anaerobic fermentation tank and used for receiving and filtering biogas output by the anaerobic fermentation tank, compressing part of biogas by a biogas compressor and then reversely outputting the compressed biogas to the anaerobic fermentation tank. The marsh gas purifying and utilizing system is connected with the marsh gas filter and is used for receiving the filtered marsh gas, purifying and burning the marsh gas. The screw press is connected with the anaerobic fermentation tank and used for dehydrating biogas residues in the anaerobic fermentation tank, and the vibrating screen is connected with the screw press and used for receiving biogas residue cakes discharged by the screw press and vibrating and crushing the biogas residue cakes. The biogas residue composting unit is connected with the vibrating screen through the chain plate conveyor and used for receiving biogas residue crushed aggregates output by the vibrating screen, composting and curing the biogas residue crushed aggregates, vibrating and crushing biogas residue cakes discharged by the screw squeezer through the vibrating screen, and then composting, so that the quick curing and drying of organic biogas residues can be realized, and the formation and fertilizer efficiency of organic fertilizers are improved. The centrifugal dehydrator is respectively connected with the screw squeezer and the vibrating screen and is used for receiving filtrate output by the screw squeezer and the vibrating screen, and the sewage treatment system is connected with the centrifugal dehydrator and is used for performing harmless treatment on centrifuged filtrate supernatant.

Further, in the preferred embodiment of the present invention, the anaerobic fermentation tank is further connected with a circulating pump for returning the partial fermentation material of the anaerobic fermentation tank to the receiving hopper, and the partial fermentation material of the anaerobic fermentation tank is returned to the receiving hopper through the circulating pump, so that the preliminary organic garbage material to be fed to the anaerobic fermentation tank and the organic garbage which has been fermented can be premixed, and the premixed material in the feeding waiting process is advanced and treated, and is close to the initial stage of fermentation. The part of the fermentation product which flows back to the receiving hopper contains the slurry of the surplus free water, has certain fluidity and proper temperature, and is premixed with the initial organic garbage raw material, so that the preposed premixed fermentation can be realized, and the fermentation efficiency of the material in a subsequent anaerobic fermentation tank is improved.

Further, in the preferred embodiment of the utility model, centrifugal dehydrator still is connected with the flocculating agent supply tank that is used for dropping into centrifugal dehydrator with the flocculating agent, through flocculating agent supply tank will drop into the centrifugal filtrate of centrifugal dehydrator output with the flocculating agent in, can flocculate the suspended solid impurity in the centrifugal filtrate, reduce the organic rubbish suspended particle in the centrifugal filtrate, convenient follow-up processing to centrifugal filtrate avoids the scale deposit to block up the pipeline to and deposit the scaling in the container.

Further, in the preferred embodiment of the present invention, a filtrate pump for refluxing a part of the filtrate outputted from the centrifugal dehydrator to the receiving hopper is further connected between the centrifugal dehydrator and the receiving hopper. Partial filter liquor output by the centrifugal dehydrator flows back to the receiving hopper through the filter liquor pump, so that the premixing effect of materials in the receiving hopper can be improved. In order to increase the reaction efficiency of the fermented materials in the anaerobic fermentation tank, the air outlet of the methane compressor is connected with the bottom one-way nozzle of the anaerobic fermentation tank through a pressure pipe and used for inputting high-pressure methane into the anaerobic fermentation tank in a pulse mode through the one-way nozzle to carry out airflow stirring on the materials in the anaerobic fermentation tank.

To sum up, the utility model discloses an organic rubbish resourceful cyclic utilization system can realize the full aspect cyclic utilization to the surplus class of organic rubbish in kitchen, make organic rubbish turn into marsh gas and fertilizer, shake garrulous compost through the shale shaker with screw rod squeezer exhaust natural pond sediment caking, can obtain high-quality curing fertilizer, the backward flow circulation through intermediate product simultaneously, can realize initial material and ferment in the leading preliminary advance of feed process, improve the material fermentation efficiency in follow-up anaerobic fermentation jar, through with compressed methane backward flow to anaerobic fermentation jar, can further increase fermentation speed and efficiency.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but is described in the embodiments and the description only to illustrate the principles of the invention and that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides an organic rubbish resource cyclic utilization system which characterized in that includes:

the receiving hopper is used for receiving the pretreated organic garbage;

the biogas purification and utilization system is connected with the biogas filter and is used for receiving the filtered biogas, purifying and burning the filtered biogas;

the screw rod presser is connected with the anaerobic fermentation tank and is used for dehydrating the biogas residues in the anaerobic fermentation tank;

2. The organic waste recycling system as claimed in claim 1, wherein the anaerobic fermentation tank is further connected with a circulation pump for refluxing a part of the fermented materials of the anaerobic fermentation tank to the receiving hopper.

3. The organic waste recycling system according to claim 1, wherein the centrifugal dehydrator is further connected to a flocculant supply tank for feeding a flocculant into the centrifugal dehydrator.

4. The organic waste recycling system according to claim 1, wherein a filtrate pump for refluxing a part of the centrifugal filtrate output by the centrifugal dehydrator to the receiving hopper is further connected between the centrifugal dehydrator and the receiving hopper.

5. The organic waste recycling system as claimed in claim 4, wherein the gas outlet of the biogas compressor is connected with the bottom one-way nozzle of the anaerobic fermentation tank through a pressure pipe, and is used for inputting high-pressure biogas into the anaerobic fermentation tank through the one-way nozzle in a pulse manner to perform gas flow stirring on the materials in the anaerobic fermentation tank.