CN110894169A - Kitchen waste aerobic fermentation equipment and waste treatment method thereof - Google Patents
Kitchen waste aerobic fermentation equipment and waste treatment method thereof Download PDFInfo
- Publication number
- CN110894169A CN110894169A CN201911343568.2A CN201911343568A CN110894169A CN 110894169 A CN110894169 A CN 110894169A CN 201911343568 A CN201911343568 A CN 201911343568A CN 110894169 A CN110894169 A CN 110894169A
- Authority
- CN
- China
- Prior art keywords
- fermentation
- aerobic fermentation
- kitchen waste
- bin
- kitchen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010564 aerobic fermentation Methods 0.000 title claims abstract description 41
- 239000010806 kitchen waste Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 16
- 239000002699 waste material Substances 0.000 title claims description 12
- 230000004151 fermentation Effects 0.000 claims abstract description 89
- 238000000855 fermentation Methods 0.000 claims abstract description 86
- 238000005273 aeration Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000010813 municipal solid waste Substances 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 26
- 239000011343 solid material Substances 0.000 claims description 24
- 238000009423 ventilation Methods 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 19
- 239000002361 compost Substances 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003895 organic fertilizer Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000009264 composting Methods 0.000 abstract description 9
- 239000003337 fertilizer Substances 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 6
- 244000005700 microbiome Species 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000255925 Diptera Species 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
本发明涉及一种厨余垃圾好氧发酵设备，包括框架和发酵仓、曝气系统、渗滤液收集系统、样品采集和在线监测系统以及电气控制系统，发酵仓上设有进料口和出料口，发酵仓外设有加热保温系统，发酵仓内设有搅拌系统，发酵仓底部设有曝气系统和渗滤液收集系统；样品采集和在线监测系统包括固体样品采集装置和气体样品在线测量装置，固体样品采集装置设在发酵仓侧边，发酵仓上部设有出气管道，气体样品在线测量装置设在出气管道内；电气控制系统电控制曝气系统、搅拌系统、加热保温系统。本发明设备结构简单，使用方便，能解决传统自然发酵存在的发酵周期长、劳动强度高、肥料品质不稳定问题，高温堆肥机器无法达到腐熟标准和无法还田问题。
The invention relates to an aerobic fermentation equipment for kitchen waste, including a frame, a fermentation bin, an aeration system, a leachate collection system, a sample collection and online monitoring system and an electrical control system. The fermentation bin is provided with a feeding port and a discharging port. There is a heating and heat preservation system outside the fermentation chamber, a stirring system in the fermentation chamber, and an aeration system and a leachate collection system at the bottom of the fermentation chamber; the sample collection and online monitoring system includes a solid sample collection device and a gas sample online measurement device , The solid sample collection device is located on the side of the fermentation tank, the upper part of the fermentation tank is equipped with a gas outlet pipe, and the gas sample online measurement device is located in the gas outlet pipe; the electrical control system electrically controls the aeration system, the stirring system, and the heating and heat preservation system. The device of the invention is simple in structure and convenient to use, and can solve the problems of long fermentation period, high labor intensity, unstable fertilizer quality, high temperature composting machine unable to reach the decomposing standard and inability to return to the fields of traditional natural fermentation.
Description
Technical Field
The invention relates to the technical field of kitchen waste treatment, in particular to kitchen waste aerobic fermentation equipment and a waste treatment method thereof.
Background
Along with the acceleration of urbanization and the continuous improvement of living standard of people, the production quantity of municipal domestic garbage is gradually increased every year, so that the garbage treatment challenge is more serious, and the phenomenon of enclosing garbage is more prominent. Kitchen waste accounts for nearly half of the proportion of household garbage, and is easy to deteriorate and rot, breed mosquitoes and flies, emit foul gases and generate percolate during storage, transportation and disposal (landfill or incineration) due to the characteristics of high humidity (60-80%), high organic matter content (volatile solid/total solid content is 74.6-95.3%), high nutrient element content (protein content is 1.4-38.9% of total solid content, carbohydrate is 0.8-59.9%, lipid is 0.1-41.5%) and the like. Aerobic fermentation is an effective technology for realizing effective treatment and recycling of kitchen waste, and refers to a process of decomposing and utilizing nutrient elements in organic waste by microorganisms under an aerobic condition, releasing carbon dioxide, water and heat in the process, finally producing a compost product similar to humus, and being capable of being used as a soil additive to improve soil properties.
At present, the aerobic fermentation of kitchen waste on a community level mainly adopts the traditional natural fermentation and 24-hour high-temperature composting machine. The traditional natural fermentation has the following disadvantages: (1) the fermentation period is long and needs 2-3 months; (2) manual pile turning is performed, so that the labor intensity is high; (3) the quality of the fertilizer is not stable. The 24-hour high-temperature composting machine has the main problems that the temperature of a fermentation bin of the machine is set to be 70-80 ℃, microorganisms cannot survive and breed under the high-temperature condition, the kitchen waste treatment principle is high-temperature drying and non-aerobic fermentation, and the produced products cannot reach the maturity standard and cannot be returned to the field for recycling. Therefore, it is necessary to design a new technical solution to comprehensively solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide kitchen waste aerobic fermentation equipment and a treatment method thereof, which have the advantages of simple structure and convenient use and can effectively solve the problems of long fermentation period, high labor intensity, unstable fertilizer quality, and incapability of reaching a maturity standard and returning to the field for recycling in a high-temperature composting machine in the traditional natural fermentation.
In order to solve the technical problems, the invention adopts the following technical scheme:
a kitchen waste aerobic fermentation device comprises a frame, and a fermentation bin, a heating and heat-preserving system, a stirring system, an aeration system, a percolate collecting system, a sample collecting and online monitoring system and an electrical control system which are arranged in the frame, wherein a feeding hole and a discharging hole are formed in the fermentation bin; the sample collection and online monitoring system comprises a solid sample collection device for collecting solid materials and an online gas sample measurement device for monitoring gas concentration, wherein the solid sample collection device is arranged on the side of the fermentation bin, the upper part of the fermentation bin is provided with a gas outlet pipeline, and the online gas sample measurement device is arranged in the gas outlet pipeline; the electrical control system electrically controls the aeration system, the stirring system and the heating and heat-preserving system.
The fermentation bin is of a U-shaped horizontal structure, the feed inlet is communicated with and arranged on a frame on the upper portion of the fermentation bin, and the discharge outlet is communicated and arranged on a frame on the side wall of the fermentation bin.
The solid sample collection device comprises a sampler and solid material collection pipelines, wherein the solid material collection pipelines are horizontally distributed on the side wall of the fermentation bin at equal intervals, the sampler is matched with the solid material collection pipelines in shape, and the sampler is movably arranged in the solid material collection pipelines along the length direction of the solid material collection pipelines; the outer wall of each solid material collecting pipeline is provided with a temperature sensor, and each temperature sensor is electrically connected with the electric control system; the gas sample on-line monitoring device comprises O2Sensor, CO2Sensor, NH3Sensor and CH4A sensor.
The stirring system comprises a double-helix auger and a motor, the motor is arranged in a frame above the fermentation bin, the double-helix auger is arranged in the fermentation bin, the axial length direction of the double-helix auger is consistent with the axial direction of the fermentation bin, and the double-helix auger passes through the transmission device and is connected with the motor.
The heating and heat-preserving system comprises a ceramic fiber blanket and a rubber silica gel electric heating belt, the rubber silica gel electric heating belt covers the outer side wall and the outer top of the fermentation bin, and the ceramic fiber blanket covers the outer layer of the rubber silica gel electric heating belt.
The technical scheme is that the percolate collecting system comprises a filter screen and a percolate collecting box, the filter screen is an arc-shaped stainless steel filter screen, and a percolate collecting opening is formed in the percolate collecting box through a regulating valve.
The aeration system comprises an aeration pipe and an air compressor, wherein the aeration pipe is arranged at the bottom of the fermentation bin, the aeration pipe is connected with the air compressor through a connecting pipeline, and the air compressor is arranged outside the frame through a connecting pipe.
A method for treating garbage by using kitchen garbage aerobic fermentation equipment comprises the following steps:
step a, pretreating compost raw materials; the compost raw materials comprise kitchen garbage and green garbage, the kitchen garbage is crushed into 2-5cm, and water is drained; crushing the green waste into 2-3 cm;
step b, charging; uniformly mixing the crushed kitchen waste and green waste, and placing the mixture in kitchen waste aerobic fermentation equipment;
step c, aerobic fermentation; starting the kitchen waste aerobic fermentation equipment, and performing thermophilic fermentation at 40-55 ℃, thermophilic fermentation at 55-65 ℃ and decomposition at 55-40 ℃ on compost raw materials to finish the kitchen waste aerobic fermentation process;
d, discharging; used as organic fertilizer.
Wherein the addition amount of the greening garbage is that the humidity added to the compost raw materials is 65 percent, and the carbon-nitrogen ratio is 20-25: 1.
The process parameters of the mesophilic fermentation stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.48L/kg DM/min; circulating for 1-2 days at a rotation speed of 10r/min in a manner of positively rotating for 5min, stopping for 55min, reversely rotating for 5min and stopping for 55 min;
the technological parameters of the thermophilic fermentation stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.72L/kg DM/min; circulating for 5-7 days at a rotation speed of 10r/min in a manner of rotating forwards for 5min, stopping for 25min, rotating backwards for 5min and stopping for 25 min;
the technological parameters of the decomposition stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.48L/kg DM/min; rotating at a speed of 10r/min for 5 days in a manner of rotating forwards for 5min, stopping for 55min, rotating backwards for 5min and stopping for 55 min.
The kitchen waste aerobic fermentation equipment and the treatment method thereof provided in the technical scheme comprise a fermentation bin, a heating and heat-preserving system, a stirring system, an aeration system, a percolate collecting system, a sample collecting and online monitoring system and an electrical control system, wherein the fermentation bin is arranged for concentrating and fermenting compost raw materials; a heating and heat-preserving system is arranged to heat and preserve heat of the compost raw materials in the fermentation bin, so that the fermentation process is not influenced by the external environment; a solid sample collecting device is arranged to perform sampling inspection on the materials in the fermentation bin, and a gas sample on-line monitoring device is arranged to monitor the gas in the gas outlet pipeline, so that the fermentation condition of the materials and the concentration details of the emitted gas can be conveniently known; a stirring system is arranged to carry out convection circulation and shearing and seepage mixing on the materials in the fermentation bin, so that the materials are quickly and uniformly mixed in a short time; an aeration system is arranged to control the ventilation condition in the fermentation bin and perform feedback control on the oxygen content; and finally, the automation of an aeration system, a stirring system and a heating and heat-preserving system is realized through an electrical control system, so that the convenience of kitchen garbage treatment and the stability of fertilizer quality are improved.
Drawings
FIG. 1 is a schematic view of the internal structure of an aerobic fermentation apparatus for kitchen waste according to the present invention;
FIG. 2 is a schematic view of the external structure of the aerobic fermentation equipment for kitchen garbage according to the present invention;
fig. 3 is a schematic structural diagram of the sampler of the present invention.
In the figure: 1. a frame; 11. an air outlet pipe; 2. a fermentation bin; 21. a feed inlet; 22. a discharge port; 3. a heating and heat-preserving system; 4. a double helix auger; 41. a motor; 42. a drive chain; 5. an air compressor; 51. an aeration pipe; 52. connecting a pipeline; 6. filtering with a screen; 61. a leachate collection port; 7. a solid material collection pipeline; 71. a sampler; 8. an electrical control system.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
The technical scheme adopted by the invention is shown in figures 1-3, and the kitchen waste aerobic fermentation equipment comprises a frame 1, a fermentation bin 2, a heating and heat-preserving system 3, a stirring system, an aeration system, a percolate collecting system, a sample collecting and online monitoring system and an electrical control system 8, wherein the fermentation bin 2 is arranged in the frame 1, the fermentation bin 2 is of a U-shaped horizontal structure, a feeding hole 21 is communicated with the frame 1 arranged at the upper part of the fermentation bin 2, a discharging hole 22 is communicated with the frame 1 arranged on the side wall of the fermentation bin 2, the fermentation bin 2 can be arranged to be 1200mm in length, 1000mm in height and 1.071m in volume3The composting treatment of kitchen waste in urban residential areas can be met; the outer wall of the fermentation bin 2 is provided with a heating and heat-insulating system 3, the heating and heat-insulating system 3 comprises a ceramic fiber blanket and a rubber-silica gel electric heating belt, the rubber-silica gel electric heating belt covers the outer side wall and the outer top of the fermentation bin 2, and the ceramic fiber blanket covers the outer layer of the rubber-silica gel electric heating belt; a stirring system is arranged in the fermentation bin 2 and comprises a double-helix auger 4 (the inner and the outer parts and the left and the right parts are mutually reverse-helical) and a motor 41, the motor 41 is arranged in the frame 1 above the fermentation bin 2, the double-helix auger 4 is arranged in the fermentation bin 2, the axial length direction of the double-helix auger 4 is consistent with the axial direction of the fermentation bin 2, and the double-helix auger 4 is connected with the motor 41 through a transmission chain 42, so that the composting raw materials are circulated in a convection way and are sheared and mixed in a permeation way in the fermentation bin 2, and the materials are uniformly mixed in a short time; an aeration system and a percolate collecting system are arranged at the bottom of the fermentation bin 2, the aeration system comprises an aeration pipe 51 and an air compressor 5, the aeration pipe 51 is arranged at the bottom of the fermentation bin 2, and the aeration pipe 51 is connected with the aeration pipe 51The connecting pipe 52 is connected with the air compressor 5, and the air compressor 5 is arranged outside the frame 1 through a connecting pipe; the filtration liquid collecting system includes that filter screen 6 and filtration liquid collect the box, and filter screen 6 is arc stainless steel filter screen, and filtration liquid collects and sets up filtration liquid through the ball valve on the box and collect mouth 61 to the realization is to the discharge of filtration liquid.
The sample collection and online monitoring system comprises a solid sample collection device for collecting solid materials and an online gas sample measurement device for monitoring gas concentration, the solid sample collection device is arranged at the side of the fermentation bin 2 and comprises a sampler 71 and each solid material collection pipeline 7, each solid material collection pipeline 7 is horizontally and equidistantly distributed at the position of 350mm in height of the fermentation bin 2, the sampler 71 is matched with the shape of the solid material collection pipeline 7, and the sampler 71 is movably arranged in the solid material collection pipeline 7 along the length direction of the solid material collection pipeline, specifically, the sampler 71 is a cylindrical hollow structure shown in figure 3, in the fermentation process, the outer end of the solid material collection pipeline 7 is plugged by a rubber plug, when sampling is needed, the rubber plug is pulled out, and the sampler 71 is used for sampling in the solid material collection pipeline 7; all be provided with temperature sensor on 7 outer walls of each solid material acquisition pipeline, each temperature sensor all is connected with 8 electricity of electrical control system, realizes the real-time supervision to material temperature to but the automatic storage is in the cloud platform.
The upper part of the fermentation chamber 2 is provided with an air outlet pipeline 11, and the gas sample on-line monitoring device comprises O2Sensor, CO2Sensor, NH3Sensor and CH4The sensors are respectively arranged in the gas outlet pipeline 11, so that the real-time monitoring of the gas content is realized, and the gas can be automatically stored in a cloud platform; the electric control system 8 electrically controls the aeration system (mainly controlling the air quantity and the air speed of the air compressor 5), the stirring system and the heating and heat-insulating system 3, and realizes the automatic treatment of the aerobic fermentation of the kitchen waste. In addition, the gas outlet pipeline 11 can be provided with a rubber pipe, and the rubber pipe is used for collecting gas samples so as to be used for high-precision measurement of gas concentration in a laboratory.
The method for treating the garbage by using the kitchen garbage aerobic fermentation equipment comprises the following steps:
step a, pretreating compost raw materials; the compost raw materials comprise kitchen garbage and green garbage (fallen leaves, hay, dried branches and the like), the kitchen garbage is crushed into 2-5cm, and water is drained; crushing the green waste into 2-3 cm;
step b, charging; uniformly mixing the crushed kitchen waste and green waste, and placing the mixture in an aerobic fermentation device for the kitchen waste, wherein the addition amount of the green waste is determined by the humidity of the mixed raw materials, the green waste is added to adjust the humidity of the mixed raw materials to be 65%, and the carbon-nitrogen ratio is 20-25;
step c, aerobic fermentation; starting the kitchen waste aerobic fermentation equipment, and performing thermophilic fermentation at 40-55 ℃, thermophilic fermentation at 55-65 ℃ and decomposition at 55-40 ℃ on compost raw materials to finish the kitchen waste aerobic fermentation process;
the process parameters of the mesophilic fermentation stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.48L/kg DM/min; circulating for 1-2 days at a rotation speed of 10r/min in a fixed frequency mode of positively rotating for 5min, stopping for 55min, reversely rotating for 5min and stopping for 55 min; in the stage, the temperature of the stack raw material is increased from the initial temperature to 55 ℃, and the purpose of the stage is to realize the temperature increase of the stack by providing proper growth conditions for mesophilic microorganisms; the relatively low ventilation speed (0.48L/kg DM/min) is adopted, so that the excessive loss of heat can be effectively avoided, and the temperature rise is ensured;
the technological parameters of the thermophilic fermentation stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.72L/kg DM/min; circulating for 5-7 days at a rotation speed of 10r/min in a fixed frequency mode of positively rotating for 5min, stopping for 25min, reversely rotating for 5min and stopping for 25 min; in the stage, the temperature of the stack raw material is maintained at 55-65 ℃, and the organic matter is rapidly degraded by providing a proper growth condition of thermophilic microorganisms; a larger ventilation rate (0.72L/kg DM/min) is adopted to provide sufficient oxygen for microbial fermentation;
the technological parameters of the decomposition stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.48L/kg DM/min; circulating for 5 days at a rotation speed of 10r/min in a fixed frequency mode of positively rotating for 5min, stopping for 55min, reversely rotating for 5min and stopping for 55 min; in the stage, the temperature of the compost raw materials is reduced from 55 ℃ to 40 ℃, and the purpose of the stage is to realize the maturity and stability of the compost; the small ventilation speed (0.48L/kg DM/min) is adopted, so that the excessive heat dissipation can be effectively avoided.
D, discharging; used as organic fertilizer.
In a word, the kitchen waste aerobic fermentation equipment and the garbage treatment method thereof provided by the invention have the advantages that the kitchen waste aerobic fermentation equipment is arranged, the main fermentation process is intelligently controlled by a machine to replace manual management, and the problems of long fermentation period, high labor intensity and unstable fertilizer quality of the traditional natural fermentation are effectively solved; an aerobic fermentation treatment mechanism is adopted, which is different from a high-temperature drying mechanism of a 24-hour high-temperature composting machine, so that the problems that products produced by high-temperature composting treatment cannot reach a maturity standard and cannot be returned to the field are solved; and finally, accurately controlling the technological parameters of the mesophilic, thermophilic and decomposing stages of the compost, improving the composting efficiency, shortening the fermentation time to 2 weeks and obtaining high-quality products.
The present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent changes and substitutions without departing from the principle of the present invention after learning the content of the present invention, and these equivalent changes and substitutions should be considered as belonging to the protection scope of the present invention.
Claims (10)
1. The kitchen waste aerobic fermentation equipment is characterized in that: the device comprises a frame, and a fermentation bin, a heating and heat-preserving system, a stirring system, an aeration system, a percolate collecting system, a sample collecting and online monitoring system and an electrical control system which are arranged in the frame, wherein a feeding port and a discharging port are formed in the fermentation bin; the sample collection and online monitoring system comprises a solid sample collection device for collecting solid materials and an online gas sample measurement device for monitoring gas concentration, wherein the solid sample collection device is arranged on the side of the fermentation bin, the upper part of the fermentation bin is provided with a gas outlet pipeline, and the online gas sample measurement device is arranged in the gas outlet pipeline; the electrical control system electrically controls the aeration system, the stirring system and the heating and heat-preserving system.
2. The aerobic fermentation equipment of kitchen waste as claimed in claim 1, wherein: the fermentation chamber is of a U-shaped horizontal structure, the feed inlet is communicated with and arranged on a frame on the upper portion of the fermentation chamber, and the discharge outlet is communicated and arranged on a frame on the side wall of the fermentation chamber.
3. The aerobic fermentation equipment of kitchen waste according to claim 1 or 2, characterized in that: the solid sample collecting device comprises a sampler and solid material collecting pipelines, the solid material collecting pipelines are horizontally distributed on the side wall of the fermentation bin at equal intervals, the sampler is matched with the solid material collecting pipelines in shape, and the sampler can be movably arranged in the solid material collecting pipelines along the length direction of the solid material collecting pipelines; the outer wall of each solid material collecting pipeline is provided with a temperature sensor, and each temperature sensor is electrically connected with the electric control system;
the gas sample on-line monitoring device comprises O2Sensor, CO2Sensor, NH3Sensor and CH4A sensor.
4. The aerobic fermentation equipment of kitchen waste according to claim 1 or 2, characterized in that: the stirring system comprises a double-helix auger and a motor, the motor is arranged in a frame above the fermentation bin, the double-helix auger is arranged in the fermentation bin, the axial length direction of the double-helix auger is consistent with the axial direction of the fermentation bin, and the double-helix auger passes through the transmission device and is connected with the motor.
5. The aerobic fermentation equipment of kitchen waste according to claim 1 or 2, characterized in that: the heating and heat-preserving system comprises a ceramic fiber blanket and a rubber silica gel electric heating belt, the rubber silica gel electric heating belt covers the outer side wall and the outer top of the fermentation bin, and the ceramic fiber blanket covers the outer layer of the rubber silica gel electric heating belt.
6. The aerobic fermentation equipment of kitchen waste according to claim 1 or 2, characterized in that: the filtration liquid collecting system includes that filter screen and filtration liquid collect the box, the filter screen is arc stainless steel filter screen, filtration liquid is collected and is set up filtration liquid through the governing valve on the box and collect the mouth.
7. The aerobic fermentation equipment of kitchen waste according to claim 1 or 2, characterized in that: the aeration system comprises an aeration pipe and an air compressor, the aeration pipe is arranged at the bottom of the fermentation bin, the aeration pipe is connected with the air compressor through a connecting pipeline, and the air compressor is arranged on the outer side of the frame through a connecting pipe.
8. A method for treating garbage by using kitchen garbage aerobic fermentation equipment is characterized by comprising the following steps:
step a, pretreating compost raw materials; the compost raw materials comprise kitchen garbage and green garbage, the kitchen garbage is crushed into 2-5cm, and water is drained; crushing the green waste into 2-3 cm;
step b, charging; uniformly mixing the crushed kitchen waste and green waste, and placing the mixture in kitchen waste aerobic fermentation equipment;
step c, aerobic fermentation; starting the kitchen waste aerobic fermentation equipment, and performing thermophilic fermentation at 40-55 ℃, thermophilic fermentation at 55-65 ℃ and decomposition at 55-40 ℃ on compost raw materials to finish the kitchen waste aerobic fermentation process;
d, discharging; used as organic fertilizer.
9. The method for treating garbage by using kitchen garbage aerobic fermentation equipment as claimed in claim 9, wherein: adding the green waste until the humidity of the compost raw materials is 65 percent and the carbon-nitrogen ratio is 20-25: 1.
10. The method for treating garbage by using kitchen garbage aerobic fermentation equipment as claimed in claim 9, wherein:
the process parameters of the mesophilic fermentation stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.48L/kg DM/min; circulating for 1-2 days at a rotation speed of 10r/min in a manner of positively rotating for 5min, stopping for 55min, reversely rotating for 5min and stopping for 55 min;
the technological parameters of the thermophilic fermentation stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.72L/kg DM/min; circulating for 5-7 days at a rotation speed of 10r/min in a manner of rotating forwards for 5min, stopping for 25min, rotating backwards for 5min and stopping for 25 min;
the technological parameters of the decomposition stage are as follows: oxygen is supplied in a forced continuous ventilation mode; the ventilation rate is 0.48L/kg DM/min; rotating at a speed of 10r/min for 5 days in a manner of rotating forwards for 5min, stopping for 55min, rotating backwards for 5min and stopping for 55 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343568.2A CN110894169A (en) | 2019-12-24 | 2019-12-24 | Kitchen waste aerobic fermentation equipment and waste treatment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343568.2A CN110894169A (en) | 2019-12-24 | 2019-12-24 | Kitchen waste aerobic fermentation equipment and waste treatment method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110894169A true CN110894169A (en) | 2020-03-20 |
Family
ID=69789424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911343568.2A Pending CN110894169A (en) | 2019-12-24 | 2019-12-24 | Kitchen waste aerobic fermentation equipment and waste treatment method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110894169A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233529A (en) * | 2020-03-31 | 2020-06-05 | 上海巷西环境科技有限公司 | Horizontal elimination type kitchen waste treatment equipment |
| CN111499442A (en) * | 2020-05-08 | 2020-08-07 | 中农新科(苏州)有机循环研究院有限公司 | Composting equipment for laboratory |
| CN111518685A (en) * | 2020-04-12 | 2020-08-11 | 蔚复来(浙江)科技股份有限公司 | Intelligent control system and method for kitchen waste fermentation |
| CN111777434A (en) * | 2020-06-30 | 2020-10-16 | 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） | A method for decomposing heat-generating microorganisms of livestock and poultry manure and decomposing device thereof |
| CN112174713A (en) * | 2020-09-30 | 2021-01-05 | 沈阳东源环境科技有限公司 | Novel ultra-high temperature aerobic fermentation device |
| CN112624827A (en) * | 2021-01-07 | 2021-04-09 | 中国科学院生态环境研究中心 | Two-stage type high-temperature decomposition cooperative composting device and composting method thereof |
| CN113219132A (en) * | 2021-05-07 | 2021-08-06 | 南京大学 | Reaction device for comprehensively measuring biodegradability of material and using method thereof |
| CN113501728A (en) * | 2021-07-20 | 2021-10-15 | 广州智光节能有限公司 | Parameter control system of garbage aerobic composting system |
| CN113651645A (en) * | 2021-07-26 | 2021-11-16 | 北京沃土天地生物科技股份有限公司 | Aerobic fermentation reaction system |
| CN113979795A (en) * | 2021-11-22 | 2022-01-28 | 盐城师范学院 | A device for converting manure into manure in livestock and poultry farms |
| CN115259922A (en) * | 2022-07-13 | 2022-11-01 | 北京市农林科学院智能装备技术研究中心 | Large-scale waste vegetable aerobic fermentation process and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011156491A (en) * | 2010-02-02 | 2011-08-18 | Satoru Fukai | Closed garbage disposal system |
| CN107021794A (en) * | 2017-04-07 | 2017-08-08 | 深圳市绿洲生态科技有限公司 | A kind of composting high-efficiency aerobic composting device and method |
| CN108373346A (en) * | 2017-11-27 | 2018-08-07 | 北京桑德新环卫投资有限公司 | A kind of organic waste aerobic compost equipment |
| CN109896873A (en) * | 2019-04-09 | 2019-06-18 | 浙江大学 | Utilize the composting device for domestic waste and its method of wind energy temperature raising |
-
2019
- 2019-12-24 CN CN201911343568.2A patent/CN110894169A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011156491A (en) * | 2010-02-02 | 2011-08-18 | Satoru Fukai | Closed garbage disposal system |
| CN107021794A (en) * | 2017-04-07 | 2017-08-08 | 深圳市绿洲生态科技有限公司 | A kind of composting high-efficiency aerobic composting device and method |
| CN108373346A (en) * | 2017-11-27 | 2018-08-07 | 北京桑德新环卫投资有限公司 | A kind of organic waste aerobic compost equipment |
| CN109896873A (en) * | 2019-04-09 | 2019-06-18 | 浙江大学 | Utilize the composting device for domestic waste and its method of wind energy temperature raising |
Non-Patent Citations (1)
| Title |
|---|
| 云南省再生经济产业开发研究会著: "《洱海流域农业面源污染治理研究》", 31 August 2015, 云南大学出版社 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233529A (en) * | 2020-03-31 | 2020-06-05 | 上海巷西环境科技有限公司 | Horizontal elimination type kitchen waste treatment equipment |
| CN111233529B (en) * | 2020-03-31 | 2024-05-10 | 上海巷西环境科技有限公司 | Horizontal type kitchen waste treatment equipment capable of eliminating kitchen waste |
| CN111518685A (en) * | 2020-04-12 | 2020-08-11 | 蔚复来(浙江)科技股份有限公司 | Intelligent control system and method for kitchen waste fermentation |
| CN111499442A (en) * | 2020-05-08 | 2020-08-07 | 中农新科(苏州)有机循环研究院有限公司 | Composting equipment for laboratory |
| CN111777434A (en) * | 2020-06-30 | 2020-10-16 | 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） | A method for decomposing heat-generating microorganisms of livestock and poultry manure and decomposing device thereof |
| CN112174713A (en) * | 2020-09-30 | 2021-01-05 | 沈阳东源环境科技有限公司 | Novel ultra-high temperature aerobic fermentation device |
| CN112174713B (en) * | 2020-09-30 | 2022-06-14 | 沈阳东源环境科技有限公司 | Ultrahigh-temperature aerobic fermentation device |
| CN112624827B (en) * | 2021-01-07 | 2022-05-06 | 中国科学院生态环境研究中心 | A two-stage high-temperature decomposing synergistic composting device and composting method thereof |
| CN112624827A (en) * | 2021-01-07 | 2021-04-09 | 中国科学院生态环境研究中心 | Two-stage type high-temperature decomposition cooperative composting device and composting method thereof |
| CN113219132A (en) * | 2021-05-07 | 2021-08-06 | 南京大学 | Reaction device for comprehensively measuring biodegradability of material and using method thereof |
| CN113219132B (en) * | 2021-05-07 | 2022-05-06 | 南京大学 | A reaction device for comprehensively measuring the biodegradability of materials and using method thereof |
| CN113501728A (en) * | 2021-07-20 | 2021-10-15 | 广州智光节能有限公司 | Parameter control system of garbage aerobic composting system |
| CN113651645A (en) * | 2021-07-26 | 2021-11-16 | 北京沃土天地生物科技股份有限公司 | Aerobic fermentation reaction system |
| CN113979795A (en) * | 2021-11-22 | 2022-01-28 | 盐城师范学院 | A device for converting manure into manure in livestock and poultry farms |
| CN115259922A (en) * | 2022-07-13 | 2022-11-01 | 北京市农林科学院智能装备技术研究中心 | Large-scale waste vegetable aerobic fermentation process and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110894169A (en) | Kitchen waste aerobic fermentation equipment and waste treatment method thereof | |
| CN109485475A (en) | A kind of efficient rubbish from cooking aerobic fermentation equipment | |
| CN206916027U (en) | Automatic composting machine | |
| CN110240497B (en) | Sunlight composting room for promoting temperature rise of pile by utilizing heat generated by solar heating lamp and method thereof | |
| CN203999292U (en) | A kind of device of intelligent high-temperature aerobic fermentation sludge treatment | |
| CN211471253U (en) | Organic fertilizer aerobic fermentation equipment | |
| CN202519170U (en) | Fermentation tank utilizing tobacco field wastes to produce organic fertilizer | |
| CN207987057U (en) | A kind of quick aerobic fermentation test platform | |
| CN112624810A (en) | Cow dung fertilizer fermentation cylinder with stirring structure | |
| CN106116734A (en) | Aerobic composting device and aerobic composting method for organic solid waste | |
| CN212864596U (en) | Organic waste aerobic fermentation machine device | |
| CN202265518U (en) | High-temperature aerobic high-speed fermentation machine for organic wastes | |
| CN207002734U (en) | A kind of experimental provision of agricultural crop straw aerobic fermentation | |
| CN211035643U (en) | Stable and rapid anaerobic fermentation device for breeding manure | |
| CN204529679U (en) | The intensive cattle farm of a kind of process excremental vacuum anaerobic treatment equipment | |
| CN219752189U (en) | Aerobic composting room | |
| CN215440259U (en) | Kitchen garbage syllogic fermentation processing system | |
| CN205774176U (en) | Aerobic composting device for organic solid waste | |
| CN216191964U (en) | Rural organic waste resource utilization equipment | |
| CN104846019A (en) | Gas making method by mixing and fermenting cow dung separating medium and kitchen garbage | |
| RU2595143C1 (en) | Reactor for aerobic fermentation of biomass | |
| JP2001172094A (en) | Method and apparatus for treating garbage | |
| CN110813982B (en) | Agricultural product processing recycle device | |
| CN106747741A (en) | High-efficient compost pond | |
| CN203602516U (en) | Simple composting pool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |