CN202415542U - Aerobic fermentation device for organic waste - Google Patents
Aerobic fermentation device for organic waste Download PDFInfo
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- CN202415542U CN202415542U CN 201120448793 CN201120448793U CN202415542U CN 202415542 U CN202415542 U CN 202415542U CN 201120448793 CN201120448793 CN 201120448793 CN 201120448793 U CN201120448793 U CN 201120448793U CN 202415542 U CN202415542 U CN 202415542U
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- 239000010815 organic waste Substances 0.000 title claims abstract description 45
- 238000010564 aerobic fermentation Methods 0.000 title claims abstract description 42
- 238000004064 recycling Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 84
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 abstract description 50
- 230000004151 fermentation Effects 0.000 abstract description 50
- 239000000463 material Substances 0.000 abstract description 29
- 239000010802 sludge Substances 0.000 abstract description 20
- 239000010813 municipal solid waste Substances 0.000 abstract description 15
- 239000010806 kitchen waste Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000010791 domestic waste Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000034994 death Effects 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010921 garden waste Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
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- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
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Abstract
The utility model discloses an aerobic fermentation device for organic waste, belonging to the field of waste treatment. The device comprises a rolling cylinder, a front seal cover, a back seal cover, a rolling ring type support device, a driving device, a driving part, a charging device, a tail gas recycling pipeline, a water condenser, a fan, a heater and a punched gas distributing pipe; and one end of the tail gas recycling pipeline is communicated with the inner part of the rolling cylinder by the back seal cover of the rolling cylinder, the other end of the tail gas recycling pipeline is connected with the punched gas distributing pipe through the water condenser, the fan and the heater sequentially, and the punched gas distributing pipe penetrates through the front seal cover of the rolling cylinder to extend into the rolling cylinder. The device is further provided with a tail gas recycling passageway formed by the tail gas recycling pipeline, the water condenser, the fan, the heater and the punched gas distributing pipe, the tail gas can be recycled in the rolling cylinder, the discharge of bad small can be reduced, the material fermentation environment in the rolling cylinder can be guaranteed, the fermentation period can be shortened, and the harmless and the recycled treatment of the organic waste such as the sludge, the garbage, the kitchen waste and the like can be realized.
Description
Technical Field
The utility model belongs to the technical field of municipal organic waste handles and specifically relates to an organic waste aerobic fermentation processing apparatus who handles municipal organic waste such as municipal sewage treatment plant dewatered sludge, domestic waste, kitchen garbage is related to.
Background
With the acceleration of the economic and urbanization process of China, a large amount of urban organic wastes such as dewatered sludge of an urban sewage treatment plant, household garbage, kitchen waste, garden waste and the like are generated in cities, so that the phenomena of garbage enclosing, sludge disorderly dumping and the like are caused. According to incomplete statistics, 10000 ten thousand tons of domestic garbage (6000 ten thousand tons of kitchen garbage) and 3000 ten thousand tons of dewatered sludge are generated in 2010. The pollutants contain high content of organic matters, contain parasitic ova, pathogenic microorganisms, heavy metals and the like, and cause serious environmental pollution, public health accidents and the like if the pollutants cannot be treated properly. On the other hand, because the urban pollutants contain a large amount of organic matters and nutrient elements, if the urban pollutants are not well utilized, the circulation system of the earth substances is damaged, and the resource waste is caused.
At present, the common urban organic waste treatment and disposal technologies in China include landfill, aerobic fermentation, anaerobic digestion, incineration and the like. The aerobic fermentation technology can fully utilize organic matter in organic waste with high content and containing a large amount of N, P and other nutrient elements and partial trace elements necessary for plant growth, and has the characteristics of outstanding resource utilization on the premise of harmlessness, reduction and stabilization, and has the characteristics of lower technical threshold and economic threshold, wide application range and the like, and is more and more concerned by people, and particularly widely applied in economically developed countries. The core device of the aerobic fermentation technology is a fermentation device, which can be divided into the following parts according to the shape: a vertical multi-section fermentation tank, a silo type fermentation tank, a horizontal open fermentation tank and a horizontal rotary fermentation roller. The vertical multi-section fermentation tank has large treatment capacity and small occupied area, but the materials are not uniformly mixed, and the equipment investment is high; the silo type fermentation tank is easy to generate compaction phenomenon due to the increase of the material layer height, and generates partial anaerobic state and generates stink; although the horizontal open fermentation tank has low equipment price and easy operation, the odor control is poor. Only the horizontal rotary fermentation drum has the advantages of stronger operability, lower energy consumption, easily controlled fermentation conditions, less odor emission and the like, but the horizontal rotary fermentation drum with the existing structure has the problems of longer fermentation period, difficult feeding at the front end of the drum, unsmooth control conditions and feedback and the like due to the fact that tail gas is directly emitted to the outside, and the problems of poorer waste gas treatment and comprehensive utilization capability, extremely easy influence of the temperature of materials in the drum by the external environment temperature exist.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an organic waste aerobic fermentation treatment device, which can solve the problems that the tail gas of a horizontal rotary fermentation drum with the existing structure is directly discharged to the outside, the waste gas treatment and comprehensive utilization capacity is poor, the material temperature in the drum is very easily influenced by the external environment temperature, and the fermentation period is longer; can reduce the pollution of tail gas emission to the environment, greatly shorten the aerobic fermentation period and realize the harmless and recycling treatment of organic wastes.
The technical scheme for solving the technical problems is as follows:
the utility model discloses embodiment provides an organic waste aerobic fermentation device, and the device includes:
the tail gas recycling device comprises a roller, a rolling ring type supporting device, a driving device, a transmission part, a tail gas recycling pipeline, a water condenser, a fan, a heater and a perforated gas distribution pipe; wherein,
the roller is arranged on the rolling ring type supporting device and can do rotary motion on the rolling ring type supporting device, and the driving device is connected with the roller through a transmission part and drives the roller to rotate; the front end and the rear end of the roller are respectively provided with a front sealing cover and a rear sealing cover which seal the opening of the roller, and the front sealing cover is provided with a feeding device;
one end of the tail gas recycling pipeline is communicated with the inside of the roller through a rear sealing cover at the rear end of the roller, the other end of the tail gas recycling pipeline is connected with a perforated gas distribution pipe through a water condenser, a fan and a heater in sequence, and the perforated gas distribution pipe penetrates through a front sealing cover at the front end of the roller and extends into the roller.
The utility model discloses embodiment provides an organic waste aerobic fermentation method, and the method includes:
adopting the organic waste aerobic fermentation device;
adding the organic waste fully mixed with the fermentation auxiliary materials or partial fermentation products into the front end of the roller for fermentation;
in the rotary fermentation process of the roller, tail gas generated in the roller is treated by a tail gas recycling pipeline through a water condenser, a fan and a heater and then is returned to the front end of the roller through a perforated gas distribution pipe, and the fermentation conditions of the organic waste in the roller are adjusted, so that the organic waste is fermented under aerobic fermentation conditions.
According to the technical scheme, the tail gas recycling channel formed by the tail gas recycling pipeline, the water condenser, the fan, the air heater and the perforated gas distribution pipe is arranged between the rear end and the front end of the roller of the organic waste aerobic fermentation device, so that tail gas generated by fermentation materials in the roller cannot be directly discharged outwards, and the environment pollution is avoided. And the tail gas is recycled to the front end of the roller, so that an aerobic environment with higher temperature can be formed in the roller, and the device can greatly shorten the fermentation period of the organic waste.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an aerobic fermentation apparatus for organic waste according to an embodiment of the present invention;
the names of the components corresponding to the reference numerals in fig. 1 are: 1-a roller; 2-a drive device; 3-a water condenser; 4-air regulating valve; 5, a fan; 6-a heater; 7-perforating gas distribution pipe; 8-a tail gas recycling pipeline; 9-a feeding device; 10-front sealing cover; 11-a rolling ring type support device; 12-a transmission member; 13-rear sealing cover; 14-a baffle; 15-shovelling plates; 16-a temperature meter; 17-oxygen detector.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides an organic waste aerobic fermentation device, which is shown in figure 1 and comprises a roller 1, a rolling ring type supporting device 11, a driving device 2, a transmission part 12, a feeding device 9, a tail gas recycling pipeline 8, a condenser 3, a fan 5, a heater 6 and a perforated gas distribution pipe 7;
the roller 1 is arranged on the rolling ring type supporting device 11 and can do rotary motion on the rolling ring type supporting device 11, the driving device 2 (which can adopt a motor) is connected with the roller 1 through a transmission part 12 (which can adopt a driving gear), and the driving roller 1 rotates on the rolling ring type supporting device 11; cylinder 1 is preceding, the rear end is equipped with 1 open-ended preceding of sealed cylinder respectively, back sealed cowling 10, 13, be equipped with feed arrangement 9 on the preceding sealed cowling 10, 8 one ends of tail gas retrieval and utilization pipeline communicate in the back sealed cowling 13 of cylinder rear end and the cylinder 1 (accessible cylinder 1 rear end sets up the tail gas vent on the sealed cowling 13 of back), 8 other ends of tail gas retrieval and utilization pipeline are in proper order through condensing ware 3, fan 5, heater 6 (can adopt air heater) are connected with perforation gas distribution pipe 7, perforation gas distribution pipe 7 passes the preceding sealed cowling 10 of cylinder front end and stretches into in the cylinder 1. Like this, the passageway that carries out the retrieval and utilization to the tail gas of cylinder 1 rear end exhaust that constitutes by tail gas retrieval and utilization pipeline 8 and condensate ware 3, fan 5, heater 6 and perforation gas distribution pipe 7 among the device can effectively reduce the handling capacity of tail gas to the condition (temperature, oxygen content etc.) of organic waste fermentation in the cylinder has been promoted to the tail gas after retrieval and utilization and processing, shortens the fermentation cycle to organic waste greatly, can shorten to 3 ~ 5 days generally. And the operation and conditions are convenient to control, and the harmless and recycling treatment of sludge, garbage, kitchen and other organic wastes can be realized.
The aerobic fermentation device can also be provided with a temperature meter 16 and an oxygen detector 17 on the roller 1, and can be arranged on the outer wall of the roller 1, and the detection ends of the temperature meter and the oxygen detector are respectively communicated with the interior of the roller 1 to test the temperature and the oxygen content in the roller 1.
Further, an air regulating valve 4 can be further arranged on the aerobic fermentation device, is arranged on a tail gas recycling pipeline 8 between the water condenser 3 and the fan 5 and is used for regulating the air added into the tail gas recycling pipeline by the fan 5, and for example, the proportion of the air or the tail gas treated by the water condenser in the roller can be regulated according to the feedback of the oxygen detector 17.
The aerobic fermentation device can be further provided with a control device (not shown in the figure), the signal input end of the control device is respectively connected with the signal output ends of the temperature meter and the oxygen detector, the control end of the control device is respectively connected with the water condenser, the fan and the heater, and the control device can control the working states of the water condenser, the fan and the heater according to the signals output by the temperature meter and the oxygen detector.
The control end of the control device can be connected with an air regulating valve arranged on a tail gas recycling pipeline between the water condenser and the fan so as to control the working state of the air regulating valve according to signals output by the temperature instrument and the oxygen detector.
The control device can be formed by circuits such as a PLC (programmable logic controller), a singlechip and the like, and can realize the control and be convenient to operate. Through controlling means and thermometer and oxygen detector cooperation, according to the fermentation state of material in the cylinder, the operating condition of parts such as automatic control condenser, air control valve, fan and heater, tail gas that produces when fermenting the material in the cylinder is through parts such as tail gas retrieval and utilization pipeline, condenser, air control valve, fan, heater and perforation gas distribution pipe processing back, realizes retrieving at the automatic control mode, has both reduced tail gas emission, has guaranteed the aerobic fermentation environment to the material in the cylinder with the automatic control mode again.
The roller in the aerobic fermentation device can adopt an external rotating roller with the inner diameter being different, the inner diameter of the front end of the roller is larger than that of the barrel at the rear end, and the inner diameter of the barrel at the front end of the roller according to the total length of 1/5-1/7 can be 1.25-1.5 times that of the barrel at the remaining rear part (namely the barrel according to the total length of 4/5-6/7 of the roller); the inner diameter of the front end of the roller is increased, so that the smoothness of materials entering the roller can be ensured, and the problem that the materials of the fermentation devices with the same inner diameter are easy to block is avoided.
The cylinder body of the cylinder of the aerobic fermentation device is provided with the heat preservation layer, the inner wall of the cylinder is provided with the guide plate and the shoveling plate which is connected with the guide plate and spirally arranged, so that heat preservation in the cylinder is facilitated, and materials can smoothly move from the front end to the rear end of the cylinder.
The preceding sealed cowling of the perforation gas distribution pipe that sets up among the above-mentioned aerobic fermentation device, for fixed state, not rotatory along with the cylinder (if can set up on strutting arrangement), can avoid the perforation gas distribution pipe to receive the cylinder rotation influence like this, the perforation gas distribution pipe is fixed in preceding sealed cowling and buries in the material in the cylinder, can set up a plurality of through-holes on the perforation gas distribution pipe, but a plurality of through-holes equidistance distribute on the perforation gas distribution pipe body, and the punchhole of through-hole is 45 jiaos on the pipe wall (when perforation gas distribution pipe level sets up, the punchhole is 45 jiaos with the plumb line).
The method for performing aerobic fermentation on the organic waste by using the organic waste aerobic fermentation device specifically comprises the following steps:
the organic waste which is fully mixed with the fermentation auxiliary materials or partial fermentation materials enters the front end of the roller through a feeding device at the front end of the roller; in the rotary fermentation process of the roller, tail gas generated in the roller is treated by a tail gas recycling pipeline through a water condenser, a fan and a heater and then is returned to the front end of the roller through a perforated gas distribution pipe, and the fermentation conditions of the organic waste in the roller are adjusted, so that the organic waste is fermented under aerobic fermentation conditions.
The specific recycling process of the tail gas is as follows: air or tail gas treated by the condenser 3 in the roller is sent to the front end of the roller 1 (the reducing outer rotary roller) through a tail gas recycling pipeline 8 and a perforated gas distribution pipe 7 according to requirements by using a fan 5, and meanwhile, a heater 6 (an air heater can be used) heats the air according to the feedback of a temperature instrument 16, so that an aerobic environment with higher temperature can be formed in the roller. Under the condition, the organic waste can be subjected to high-temperature aerobic fermentation under the action of aerobic microorganisms, and the high-temperature fermentation is completed within 5-7 days.
The device realizes the harmless and stable treatment of organic wastes. Meanwhile, the tail gas in the fermentation process is recycled after being treated, so that the discharge amount of odor during the fermentation treatment of organic waste is greatly reduced, and secondary pollution is avoided; utilize the heat in the recovery tail gas, promote the fermentation process and shorten the fermentation time to set up air heater on the tail gas retrieval and utilization pipeline, can improve the temperature of 1 front end material of cylinder fast, reach rapid heating up's effect, and provide the guarantee for the device operation in winter.
The invention will be further explained with reference to the drawings and the specific embodiments.
Example one
The embodiment provides an organic waste aerobic fermentation device, which can treat dewatered sludge generated by an urban domestic sewage treatment plant and enable the treated sludge to meet the stabilization requirement.
As shown in fig. 1, the system includes: the device comprises a roller 1 (adopting a reducing outer rotary roller), a condenser 3, an air regulating valve 4, a fan 5, a heater 6 (adopting an air heater), a perforated air distribution pipe 7, a tail gas recycling pipeline 8, a temperature instrument 16 and an oxygen detector 17;
wherein, the exhaust port at the tail part of the reducing outer rotary drum 1 is sequentially connected with a water condenser 3, an air regulating valve 4, a fan 5, an air heater 6 and a perforation air distribution pipe 7 through a tail gas recycling pipeline 8;
a temperature meter 16 and an oxygen detector 17 are arranged on the outer wall of the roller 1;
the perforated gas distribution pipe 7 is fixed on a non-rotary front sealing cover 10 at the front end of the roller 1;
the roller 1 of the device is an external rotary dryer (namely a reducing external rotary roller) with the same axis and different diameters at the front and the back, the inner diameter of the front 1/5 part according to the total length of the roller is 1.5 times of the inner diameter of the rest part at the back (the roller at the back according to the length 4/5 part), the reducing external rotary roller is integrally subjected to heat preservation treatment, the thickness of the heat preservation layer is not less than 100mm, and the inner wall of the reducing external rotary roller is provided with a guide plate 14 and a shovelling plate 15 which are spirally arranged.
The fan 5 sends air or tail gas treated by the condenser 3 in the roller to the front end of the roller 1 through a tail gas recycling pipeline 8 and a perforated gas distribution pipe 7 to oxygenate and heat materials;
the air regulating valve 4 can regulate the proportion of air entering through a fan or tail gas treated by the water condenser 3 in the roller 1 according to the feedback of the oxygen detector 17;
the air heater 6 heats the air according to the feedback of the temperature instrument 16, and controls the temperature of the material at the front end of the roller 1 to ensure the rapid fermentation of the material in the roller 1;
the perforated gas distribution pipe 7 is fixed on a non-rotating front sealing cover 10 at the front end of the roller 1 and is buried in the materials; equidistant small holes are arranged on the perforation air distribution pipe 7, the aperture is 1.5mm, and the holes form an angle of 45 degrees with the plumb line;
when the fermentation device is used for aerobic fermentation of sludge, the sludge which is fully mixed with fermentation auxiliary materials or partial fermentation materials enters the front end with larger inner diameter of the reducing outer rotary roller through a feeding device 9 which is used as the reducing outer rotary roller of the roller 1; then, air or tail gas treated by the condenser 3 in the roller 1 is sent to the front end of the reducing outer rotary roller through a tail gas recycling pipeline 8 and a perforated gas distribution pipe 7 according to requirements by using a fan 5, and meanwhile, the air heater 6 heats the air (can ferment by using the self-heating capacity of microorganisms under normal conditions) when the ambient temperature is lower than 0 ℃ according to the feedback of a temperature instrument 16, so that an aerobic environment with higher temperature (40-50 ℃) can be formed at the front end of the roller 1; under the condition, the sludge can be subjected to high-temperature aerobic fermentation (55-65 ℃) under the action of aerobic microorganisms, and the high-temperature fermentation is completed within 3-5 days, so that harmless and stable treatment of the sludge is realized. Meanwhile, the tail gas in the fermentation process in the roller is treated and recycled, so that the odor generation amount is greatly reduced, and secondary pollution is avoided; owing to set up air heater 6 among the device, can improve the temperature of the outer rotation type cylinder front end material of reducing fast, reach rapid heating up's effect, and provide the guarantee for equipment operation in winter.
The properties of the sludge treated by the system are as follows: the water content is 45-60%; the content of organic matters is reduced to more than 200g/kg of dry sludge, the death rate of worm eggs is more than 95 percent, the bacteria value of faecal coliform bacteria is more than 0.01, the average grain diameter of discharged materials is less than 3mm, and the related requirements of sludge for improving land by sludge disposal of urban sewage treatment plants (GB/T24600) and sludge for landscaping by sludge disposal of urban sewage treatment plants (GB/T23486 2009) are met.
The device can greatly shorten the fermentation period of organic wastes to 3-5 days, ensures smooth feeding and propelling of materials, is easy to operate and condition control, reduces the treatment capacity of tail gas, and can realize harmless and recycling treatment of sludge.
Example two
The embodiment provides an aerobic fermentation device for organic waste, which can treat municipal domestic waste and ensure that the treated product meets the stabilization requirement.
The structure of the system is basically consistent with that of the figure 1, except that the inner diameter of the front 1/7 part of the roller 1 of the reducing outer rotary roller is 1.25 times of the diameter of the rear 6/7 part of the device, the whole reducing outer rotary roller 1 is subjected to heat preservation treatment, and the thickness of the heat preservation layer is not less than 100 mm.
The aerobic fermentation device is utilized to carry out fermentation treatment on the municipal solid waste, and the municipal solid waste which is fully mixed with fermentation auxiliary materials or partial fermentation materials enters the front end of the reducing outer rotary type roller with larger inner diameter through the feeding device 9 of the reducing outer rotary type roller; then, the air or the tail gas treated by the condenser 3 in the reducing outer rotary drum is sent to the front end of the reducing outer rotary drum through a tail gas recycling pipeline 8 and a perforated gas distribution pipe 7 according to requirements by using a fan 5, and the air heater 6 heats the air according to the feedback of the temperature instrument 16, so that an aerobic environment with a higher temperature (40-50 ℃) can be formed at the front end of the reducing outer rotary drum. Under the condition, the garbage can be subjected to high-temperature aerobic fermentation (50-60 ℃) under the action of aerobic microorganisms, and the high-temperature fermentation is completed within 5-7 days, so that harmless and stable treatment of the garbage is realized. Meanwhile, the system can be used for treating and recycling tail gas in the fermentation process, so that the generation amount of odor is greatly reduced, and secondary pollution is avoided; the device still increases air heater 6 in order to improve the temperature of the outer rotation type cylinder 1 front end material of reducing fast, has reached rapid heating up's effect, and provides the guarantee for the device operation in winter.
The properties of the municipal solid waste treated by the system are as follows: the water content is 45-60%; the content of organic matters is reduced to more than 200g/kg of dry sludge, the death rate of worm eggs is more than 95 percent, the bacteria value of faecal coliform bacteria is more than 0.01, and the relevant requirements of aerobic static composting treatment technical regulations of municipal domestic waste are met.
The fermentation device can greatly shorten the fermentation period of the municipal solid waste to 3-5 days, ensures the smooth feeding and propelling of the municipal solid waste, is easy to operate and condition control, reduces the treatment capacity of tail gas, and finally realizes the harmlessness and recycling of the municipal solid waste.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An aerobic fermentation device for organic waste, which is characterized by comprising:
the device comprises a roller, a rolling ring type supporting device, a driving device, a transmission part, a feeding device, a tail gas recycling pipeline, a water condenser, a fan, a heater and a perforated gas distribution pipe; wherein,
the roller is arranged on the rolling ring type supporting device and can do rotary motion on the rolling ring type supporting device, and the driving device is connected with the roller through a transmission part and drives the roller to rotate; the front end and the rear end of the roller are respectively provided with a front sealing cover and a rear sealing cover which seal the opening of the roller, and the front sealing cover is provided with a feeding device;
one end of the tail gas recycling pipeline is communicated with the inside of the roller through a rear sealing cover at the rear end of the roller, the other end of the tail gas recycling pipeline is connected with a perforated gas distribution pipe through a water condenser, a fan and a heater in sequence, and the perforated gas distribution pipe penetrates through a front sealing cover at the front end of the roller and extends into the roller.
2. The aerobic fermentation device for organic waste as claimed in claim 1, further comprising: and the temperature meter and the oxygen detector are arranged on the roller and are respectively communicated with the interior of the roller.
3. The aerobic fermentation device for organic waste as claimed in claim 1 or 2, further comprising: the air regulating valve is arranged on a tail gas recycling pipeline between the water condenser and the fan.
4. The aerobic fermentation device for organic waste as claimed in claim 3, further comprising: and the control device is respectively connected with the signal output ends of the temperature instrument and the oxygen detector, and the control ends are respectively connected with the water condenser, the fan and the heater so as to control the working states of the water condenser, the fan and the heater according to signals output by the temperature instrument and the oxygen detector.
5. The aerobic fermentation device for organic waste as claimed in claim 4, wherein the control end of the control device is connected to an air control valve disposed on the tail gas recycling pipeline between the water condenser and the fan, so as to control the working state of the air control valve according to the signals output by the temperature meter and the oxygen detector.
6. The aerobic fermentation device of organic waste as claimed in claim 1 or 2, wherein the drum is an outer rotary drum with a different inner diameter, and the inner diameter of the front end of the drum is larger than that of the rear end of the drum.
7. The aerobic fermentation device for organic waste as claimed in claim 6, wherein the front end of the drum has a total length of 1/5-1/7, and the inner diameter of the drum is 1.25-1.5 times of the inner diameter of the drum in the remaining part; the barrel of the roller is provided with a heat-insulating layer, and the inner wall of the roller is provided with a guide plate and a shoveling plate which is connected with the guide plate and spirally arranged.
8. The aerobic fermentation device for organic waste as claimed in claim 1, wherein the perforated gas distribution pipe is provided with a plurality of through holes, and the holes of the through holes are arranged at an angle of 45 ° on the pipe wall.
9. The aerobic fermentation device for organic waste as claimed in claim 8, wherein the plurality of through holes are distributed on the perforated gas distribution pipe at equal intervals.
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| CN 201120448793 CN202415542U (en) | 2011-11-11 | 2011-11-11 | Aerobic fermentation device for organic waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201120448793 CN202415542U (en) | 2011-11-11 | 2011-11-11 | Aerobic fermentation device for organic waste |
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| CN202415542U true CN202415542U (en) | 2012-09-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102443537A (en) * | 2011-11-11 | 2012-05-09 | 北京中持绿色能源环境技术有限公司 | Organic waste aerobic fermentation device and method |
| CN102924146A (en) * | 2012-12-03 | 2013-02-13 | 北京科技大学 | Movable rotary drum type compost reactor |
| CN105837276A (en) * | 2015-01-12 | 2016-08-10 | 北京中源创能工程技术有限公司 | High-temperature aerobic fermentation device |
| CN106865933A (en) * | 2017-04-01 | 2017-06-20 | 南京德磊科技有限公司 | A kind of aerobic drying particles machine of sewage disposal organic sludge and prilling process |
| CN109306316A (en) * | 2017-07-28 | 2019-02-05 | 贸凯国际股份有限公司 | Heat preservation expands fungus machine |
| 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 |
| CN113751464A (en) * | 2021-08-27 | 2021-12-07 | 田园牧歌生态环境科技(江苏)有限公司 | Solid waste organic matter processing system |
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2011
- 2011-11-11 CN CN 201120448793 patent/CN202415542U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443537A (en) * | 2011-11-11 | 2012-05-09 | 北京中持绿色能源环境技术有限公司 | Organic waste aerobic fermentation device and method |
| CN102443537B (en) * | 2011-11-11 | 2013-07-31 | 北京中持绿色能源环境技术有限公司 | Organic waste aerobic fermentation device and method |
| CN102924146A (en) * | 2012-12-03 | 2013-02-13 | 北京科技大学 | Movable rotary drum type compost reactor |
| CN102924146B (en) * | 2012-12-03 | 2014-05-07 | 北京科技大学 | A kind of movable drum type composting reactor |
| CN105837276A (en) * | 2015-01-12 | 2016-08-10 | 北京中源创能工程技术有限公司 | High-temperature aerobic fermentation device |
| CN106865933A (en) * | 2017-04-01 | 2017-06-20 | 南京德磊科技有限公司 | A kind of aerobic drying particles machine of sewage disposal organic sludge and prilling process |
| CN109306316A (en) * | 2017-07-28 | 2019-02-05 | 贸凯国际股份有限公司 | Heat preservation expands fungus machine |
| 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 |
| CN113751464A (en) * | 2021-08-27 | 2021-12-07 | 田园牧歌生态环境科技(江苏)有限公司 | Solid waste organic matter processing system |
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