CN218372057U - Anaerobic reaction device for treating poultry manure - Google Patents
Anaerobic reaction device for treating poultry manure Download PDFInfo
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- CN218372057U CN218372057U CN202222965070.3U CN202222965070U CN218372057U CN 218372057 U CN218372057 U CN 218372057U CN 202222965070 U CN202222965070 U CN 202222965070U CN 218372057 U CN218372057 U CN 218372057U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 23
- 244000144977 poultry Species 0.000 title abstract description 11
- 239000010871 livestock manure Substances 0.000 title description 13
- 210000003608 fece Anatomy 0.000 title description 12
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 238000000855 fermentation Methods 0.000 claims abstract description 49
- 230000004151 fermentation Effects 0.000 claims abstract description 43
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000013461 design Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 30
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 10
- 244000005700 microbiome Species 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 description 15
- 230000023556 desulfurization Effects 0.000 description 15
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
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- 238000010276 construction Methods 0.000 description 4
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- 238000012544 monitoring process Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 241000271566 Aves Species 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
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- 241000272525 Anas platyrhynchos Species 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 235000019750 Crude protein Nutrition 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000019784 crude fat Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
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- 239000003345 natural gas Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- 239000008400 supply water Substances 0.000 description 1
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The utility model discloses an anaerobic reaction device for handling poultry excrement is dirty, include by the anaerobic reactor and the ejection of compact buffer tank of connecting communicating pipe, anaerobic reactor is equipped with inlet pipe and agitator, and the ejection of compact buffer tank is connected with the discharging pipe. The discharge buffer tank is arranged, so that disturbance to the fermentation substrate inside the anaerobic reactor can be avoided when the discharge pump is used for discharging, and stable proceeding of anaerobic fermentation of the substrate can be ensured. Meanwhile, the device can also increase a gas-liquid mixing hydraulic stirring system to chop and stir the anaerobic fermentation substrate, so that the problems of top crusting and bottom deposition are avoided, the fermentation substrate is in a fully mixed state, anaerobic microorganisms are fully contacted with the fermentation substrate, the fermentation period is shortened, and the fermentation efficiency is improved. In addition, the gas-liquid mixing hydraulic stirring can take dissolved ammonia gas in the fermentation liquor to the methane, so that the accumulation of ammonia nitrogen in the fermentation liquor is reduced, and the risk of ammonia nitrogen inhibition is obviously reduced.
Description
Technical Field
The utility model relates to a breed waste disposal technical field, concretely relates to an anaerobic reaction device for handling poultry excrement is dirty.
Background
In the biogas engineering using the livestock and poultry manure as the main fermentation raw material, compared with livestock manure (such as cow manure, pig manure and the like), the content of crude protein and crude fat in the poultry manure (such as chicken manure, duck manure and the like) is higher, so that an anaerobic reactor using the poultry manure as the main fermentation raw material is easy to generate acidification, ammonia nitrogen inhibition, hydrogen sulfide inhibition, layered crusting and the like, the anaerobic fermentation process of the material is influenced, and the disadvantages of fermentation process suspension, gas production reduction, low operation load of the anaerobic reactor, design load and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem among the prior art, provide an anaerobic reaction device for handling poultry excrement is dirty, improve material fermentation efficiency, reduce ammonia nitrogen accumulation, improve desulfurization efficiency.
The technical scheme of the utility model elaborates as follows:
the utility model provides an anaerobic reaction device for handling birds excrement is dirty, includes anaerobic reactor and ejection of compact buffer tank, be equipped with the agitator in the anaerobic reactor, anaerobic reactor still is connected with inlet pipe and communicating pipe respectively, and the inlet pipe is located the inside opening setting of anaerobic reactor more than the design liquid level, communicating pipe is connected with ejection of compact buffer tank again, ejection of compact buffer tank is connected with the discharging pipe.
Optionally or preferably, the anaerobic reaction device, the communicating pipe includes an upper communicating pipe and a lower communicating pipe, the upper communicating pipe communicates with a space above a design liquid level in the anaerobic reactor and a space above a design liquid level of the discharge buffer tank, and the lower communicating pipe communicates with a space below a design liquid level in the anaerobic reactor and a space below a design liquid level of the discharge buffer tank.
Optionally or preferably, above-mentioned anaerobic reaction device, the outer parcel in proper order of ejection of compact buffer tank has heat preservation and inoxidizing coating, install the discharge pump on the discharging pipe, level sensor is still installed to the ejection of compact buffer tank, and level sensor carries out chain control with the discharge pump.
Optionally or preferably, in the anaerobic reaction apparatus, the anaerobic reactor is further connected with a gas-liquid mixing hydraulic stirring system, the gas-liquid mixing hydraulic stirring system includes a material suction pipeline, a cutting pump and a material feeding pipeline which are connected in sequence, wherein the material suction pipeline is connected with the anaerobic reactor to suck the fermentation substrate in the anaerobic reactor, and the material feeding pipeline is connected with the anaerobic reactor to feed the fermentation substrate cut by the cutting pump into the anaerobic reactor.
Optionally or preferably, in the anaerobic reaction device, the number of the feeding pipes is three, and the outlet of each feeding pipe is located at a different height below the designed liquid level in the anaerobic reactor.
Optionally or preferably, in the anaerobic reaction device, outlets of the three feeding pipes are respectively located at positions which are 0.5m and 5.0 m below a designed liquid level in the anaerobic reactor and 1.0m above the bottom of the anaerobic reactor.
Optionally or preferably, in any of the anaerobic reaction apparatus described above, the anaerobic reactor is further connected to an oxygen inlet pipe, and an outlet position of the oxygen inlet pipe in the anaerobic reactor is higher than a designed liquid level.
Optionally or preferably, in any of the above anaerobic reaction apparatus, the anaerobic reactor is further provided with a heating system, the heating system comprises a hot water supply pipe, a heating coil and a hot water return pipe, which are connected in sequence, wherein the heating coil is located in the anaerobic reactor.
Optionally or preferably, in any one of the anaerobic reaction devices, the anaerobic reactor is further provided with a biogas outlet pipe, a biogas booster fan, a flow meter and a condensed water collecting device.
Optionally or preferably, in any of the above anaerobic reaction apparatus, the anaerobic reactor has an observation window at a position 0.3m above the designed liquid level.
Compared with the prior art, the utility model discloses there is following effect:
1. the discharging buffer tank is connected with the anaerobic reactor through the communicating pipe, so that disturbance to the fermentation substrate inside the anaerobic reactor can be avoided when the discharging pump is used for discharging, and stable proceeding of substrate anaerobic fermentation is ensured.
2. The mode that the mechanical stirring of the agitator in utilizing gas-liquid mixture hydraulic power mixing system and the anaerobic reactor combines together carries out anaerobic fermentation substrate and cuts up and stirs, can avoid anaerobic reactor top to produce the crust, the bottom of anaerobic reactor produces the sedimentary problem for the inside fermentation substrate of anaerobic reactor is in the state of mixing completely, and anaerobic microorganism and fermentation substrate fully contact can make the material fully ferment, reduce the fermentation cycle of material, improve anaerobic reactor's load. Meanwhile, the gas-liquid mixing hydraulic stirring system can bring ammonia gas in a dissolved state in the fermentation liquor into the methane, so that the accumulation of ammonia nitrogen in the fermentation liquor is reduced, and the risk of ammonia nitrogen inhibition is obviously reduced.
3. An oxygen inlet pipe is connected to the upper space of the designed liquid level of the anaerobic reactor, so that the anaerobic reactor is subjected to pre-desulfurization treatment. Because the content of hydrogen sulfide in the biogas generated by anaerobic fermentation of poultry manure can reach more than 5000ppm, the load of a desulfurization system in rear-end biogas purification can be reduced by carrying out pre-desulfurization in the anaerobic reactor, and the construction cost is saved. Because the mainstream technique of present marsh gas purification is membrane purification technique, this kind of technique is limited to getting rid of nitrogen gas, for guaranteeing the methane content of the biological natural gas who obtains after the purification the utility model discloses in the device, adopt the oxygen that outside air separation plant or other modes produced to replace traditional air injection anaerobic reactor, according to the difference of fermented material, the desulfurization efficiency of this kind of normal position oxygen biological desulfurization mode can reach more than 85%.
Drawings
FIG. 1 is a schematic view showing the overall construction of an anaerobic reactor of the type for treating poultry manure.
In the figure:
1-anaerobic reactor, 2-discharge buffer tank, 3-stirrer, 4-feed pipe, 5-communicating pipe, 6-discharge pipe, 7-discharge pump, 9-suction pipe, 10-cutting pump, 11-feed pipe, 12-oxygen intake pipe, 13-hot water supply pipe, 14-heating coil, 15-hot water return pipe, 16-observation window, 17-positive and negative pressure protection device, 18-gate valve, 19-pneumatic gate valve, 20-butterfly valve, 21-ball valve, 22-check valve, 23-automatic exhaust valve, PI-pressure gauge, PICR-pressure sensor, LICR-level sensor, LSA + -high level sensor, TICR-temperature sensor, LI-level gauge.
Detailed Description
The technical solutions of the present invention will be explained and explained in detail with reference to the accompanying drawings and preferred embodiments so that those skilled in the art can better understand the present invention and implement the present invention.
Referring to fig. 1, an anaerobic reactor for treating poultry manure mainly comprises an anaerobic reactor 1 and a discharge buffer tank 2. The anaerobic reactor 1 has a height-diameter ratio of about 1.0, and a suitable reactor volume of 5000m 3 On the left and right sides, the designed liquid level is 0.7-1.0m, and like a conventional anaerobic reactor, steel plates, concrete and the like can be selected as reactor materials according to actual conditions such as project geological conditions and the like, and the reactor materials are provided with an anticorrosive layer, a heat-insulating layer and a protective structure. In the construction process, the foundation of the anaerobic reactor is constructed below the frozen soil layer of the project site.
Feeding:
the anaerobic reactor 1 is respectively connected with a feeding pipe 4 and a communicating pipe 5, the feeding pipe 4 is provided with a feeding pump, and the opening of the feeding pipe 4 positioned in the anaerobic reactor 1 is arranged above the designed liquid level. The pretreated fermentation substrate is conveyed into the anaerobic reactor 1 through a feed pump (generally a screw pump), a knife gate valve 18 is arranged on a part of a pipeline of a feed pipe 4 positioned outside the anaerobic reactor 1, the installation height of the feed pipe 4 can be 1.2m above the ground, the feed pipe 4 inside the anaerobic reactor 1 is upwards installed along the inner wall, the fermentation substrate flows out from the designed liquid level height and enters the anaerobic reactor 1, and the feeding mode belongs to the upper feeding of the anaerobic reactor.
Stirring:
an overhead stirrer 3 is arranged in the anaerobic reactor 1, and according to the size of the reactor and the fermentation concentration, double-layer blades or three-layer blades can be adopted to achieve the purpose of stirring and homogenizing. The anaerobic reactor 1 is also connected with a gas-liquid mixing hydraulic stirring system, and the gas-liquid mixing hydraulic stirring system comprises a material suction pipeline 9, a cutting pump 10 and a material feeding pipeline 11 which are connected in sequence. Wherein, the material suction pipeline 9 is provided with a gate valve 18, the material suction pipeline 9 is connected with the position (the position about 1.0m upwards from the bottom of the anaerobic reactor) close to the bottom of the anaerobic reactor 1 to suck the fermentation substrate in the anaerobic reactor 1, the number of the material feeding pipelines 11 is three, the outlet of each pipeline is respectively positioned at different heights below the designed liquid level in the anaerobic reactor, specifically, the position is 0.5 meter and 5.0 meter below the designed liquid level in the anaerobic reactor and the position is 1.0 meter upwards from the bottom of the anaerobic reactor. The feed pipe 11 is connected to the anaerobic reactor to feed the fermentation substrate cut by the cutting pump into the anaerobic reactor.
Above-mentioned agitator 3 combines together with gas-liquid mixing hydraulic stirring system, mainly utilizes the cutting pump, realizes the hydraulic stirring of material and the cutting of fermentation substrate simultaneously, avoids the production of upper portion scum layer and bottom sedimentary deposit. The fermentation substrate enters a cutting pump 10 from a bottom material suction pipeline 9, and can be conveyed to three heights of the tank body of the anaerobic reactor 1 according to the state of the internal substrate of the anaerobic reactor 1, so that three different internal substrate circulating flow states can be formed, meanwhile, the methane at the second height can be mixed with the methane in the gas storage space at the upper part of the reactor for gas-liquid mixing, and a gas-liquid mixing and stirring flow state is formed. Compared with an anaerobic reactor without a gas-liquid mixing hydraulic stirring system, the method has the advantages that the ammonia nitrogen in the fermentation substrate is reduced by more than 50%, and the harm of the accumulation of the ammonia nitrogen to anaerobic microorganisms is effectively avoided.
In-situ oxygen biological desulfurization:
the anaerobic reactor 1 is also connected with an oxygen inlet pipe 12, and the outlet position of the oxygen inlet pipe 12 in the anaerobic reactor 1 is higher than the design liquid level. The pipeline of the oxygen inlet pipe 12 outside the anaerobic reactor 1 is provided with a check valve 22 and a ball valve 21 for controlling the oxygen content entering the anaerobic reactor 1.
The oxygen inlet pipe 12 is mainly used for biological desulfurization. Biological desulfurization mainly utilizes desulfurization microorganisms to convert hydrogen sulfide into sulfate or elemental sulfur under the aerobic condition, but because sulfate has strong biological toxicity to desulfurization microorganisms, if reaction products are mainly sulfate, the yield of elemental sulfur is reduced, and the desulfurization effect is further influenced, and oxygen is considered as a main factor influencing degradation products of hydrogen sulfide, therefore, the content of oxygen in an anaerobic reactor should be controlled, and meanwhile, the content of oxygen entering the reactor should be strictly controlled in order to maintain the anaerobic environment of the anaerobic reactor.
The oxygen can be separated by a skid-mounted air separation device, the purity of the oxygen is required to be not less than 90%, and then the oxygen is input into the upper gas storage space of the anaerobic reactor 1 through an oxygen inlet pipe 12 by a compressor. The oxygen injection amount can be controlled by using a flow meter and a valve. When the hydrogen sulfide content in the reactor is high, the oxygen injection amount should be increased, and when the hydrogen sulfide content is low, the oxygen injection amount should be decreased. The methane components in the gas storage space are monitored on line by a methane analyzer, and the oxygen content in the methane is kept between 0.3 percent and 0.5 percent (volume ratio). Generally, the amount of oxygen injected into the anaerobic reactor 1 should not exceed 0.8% (by volume) of the amount of methane produced, but should not exceed 1.2% (by volume) in any case. The biogas analyzer is arranged above the designed liquid level of the anaerobic reactor 1.
And (3) observing fermentation conditions:
the anaerobic reactor 1 is provided with two observation windows 16 of DN300 at a position 0.3m above the designed liquid level. One of them is equipped with an explosion-proof probe lamp for seeing clearly the fermentation conditions inside the anaerobic reactor 1, for example, whether or not the crust is formed. In order to ensure the use effect and clear observation, the inner wall of the observation window 16 is provided with a scraper for providing clear water, and before use, clear water is firstly sprayed, and then the scraper is used for cleaning attachments.
Anaerobic reactor 1 is equipped with level sensor LICR in the position below the design liquid level, and design liquid level near slightly top is equipped with high level sensor LSA +, and design liquid level below different height is equipped with two temperature sensor TICR, and design liquid level top position is equipped with manometer PI and pressure sensor PICR to the liquid level of monitoring fermentation, temperature and reactor pressure condition. The liquid level sensor LICR and the high liquid level sensor LSA + (the liquid level sensor arranged at the position higher than the designed liquid level of the anaerobic reactor) have the functions of displaying the liquid level on site and transmitting a liquid level signal to the PLC so that the PLC can carry out remote display and carry out interlocking control with other equipment. In addition, the high liquid level sensor LSA + can send out an alarm signal when the detected liquid level reaches the set height, transmits a signal to the PLC, performs linkage control with the feeding and discharging pump, stops feeding if alarming, and starts the discharging pump to discharge.
Heating in the tank:
the anaerobic reactor 1 is further provided with a heating system, the heating system comprises a hot water supply pipe 13, a heating coil 14 and a hot water return pipe 15 which are connected in sequence, wherein the heating coil 15 is positioned in the anaerobic reactor. Ball valves 21 are respectively installed on the hot water supply pipe 13 and the hot water return pipe 15. The hot water supply pipe 13 and the hot water return pipe 15 are connected to a heating system, and supply heated hot water into the anaerobic reactor and continue heating the water that is heat-exchanged and returned by the heating coil 15. The hot water return pipe 15 is also connected with an exhaust pipeline, and an automatic exhaust valve 23 and a ball valve 21 are arranged on the exhaust pipeline. The heating system heats the fermentation substrate in the tank by using hot water, and when the fermentation is carried out at medium temperature, the fermentation temperature is kept at 38 +/-1 ℃, and the temperature of the heated supply water and return water is controlled at 60/40 ℃. The in-tank heating coil 15 suggests a stainless steel tube of DN50, and the required length is designed and determined according to actual conditions. The automatic exhaust valve 23 arranged at the top is positioned outside the anaerobic reactor 1 for convenient operation.
And (3) methane output:
the anaerobic reactor 1 is also provided with a biogas outlet pipe, a biogas booster fan, a flowmeter, a condensate water collecting device and other equipment facilities, so as to ensure the output of biogas. The biogas outlet pipe is suitably arranged at a position 0.3m above the designed liquid level of the anaerobic reactor 1. A biogas booster fan, a flow meter and a condensed water collecting device are arranged at the rear end (not shown in the figure) of the anaerobic reactor 1.
The anaerobic reactor 1 is provided with a positive-negative pressure protection device 21 to protect the anaerobic reactor 1. The upper space of the designed liquid level of the anaerobic reactor 1 is connected with a positive and negative pressure protection device 21 through a pipeline and is also connected to a methane outlet through a pipeline, and a butterfly valve 24 is arranged on the pipeline connected to the methane outlet. Two liquid level meters LI are installed at different height positions of the positive and negative pressure protection device 21, are not connected with the PLC and are only used for displaying liquid levels on site and monitoring the liquid level condition in the positive and negative pressure protection device 21. The positive and negative pressure protection device 21 is also provided with a biogas outlet at the top.
Discharging:
the discharging buffer device 2 is connected with the anaerobic reactor 1 through a communicating pipe 5, the two communicating pipes 5 are an upper communicating pipe and a lower communicating pipe respectively, the upper communicating pipe is communicated with the space above the design liquid level in the anaerobic reactor 1 and the space above the design liquid level of the discharging buffer tank 2, and the lower communicating pipe is communicated with the space below the design liquid level in the anaerobic reactor 1 and the space below the design liquid level of the discharging buffer tank 2. By adopting the principle of a communicating vessel, the upper part is communicated to keep the gas pressure consistent, the fermented material automatically flows to the discharging buffer device 2 through the lower communicating pipe, the discharging pipe 6 is connected to the lower part of the discharging buffer device 2, the discharging pipe 6 is provided with a discharging pump 7 (usually a screw pump) which is connected with the discharging pump, and the fermented material is pumped to the rear-end processing unit. The upper communicating pipe is positioned at a position 0.3m above the designed liquid level of the anaerobic reactor 1, the lower communicating pipe is positioned at a position 1.2m below the designed liquid level, and extends downwards to a position 2.0m above the bottom plate along the inner wall of the anaerobic reactor 1, belonging to the lower discharging of the anaerobic reactor 1. The discharging buffer device 2 can be made of PE material, is provided with a heat-insulating layer and a protective layer thereof, and is provided with a liquid level sensor LICR, and the discharging pump 7 and the liquid level sensor LICR are in interlocking control.
Meanwhile, the anaerobic reactor 1 is provided with an emergency discharge port at a position 0.5m above the ground and a manhole with the diameter of 0.6m at a position 1.0m above the ground for inspection and maintenance of the anaerobic reactor 1.
In this embodiment, all kinds of pumps, valves, sensors, manometer etc. of anaerobic reaction device for handling birds excrement all can carry out automatic control operation through PLC (programmable logic controller), when automatic control system design, the charge pump, discharge pump 7 and level sensor LICR and high level sensor LSA + carry out interlocking control, and the concrete control mode is that the liquid level begins the feeding when low (monitoring the liquid level and being less than preset liquid level value), stops the ejection of compact, stops the feeding when the liquid level is high (monitoring the liquid level and being higher than preset liquid level value), begins the ejection of compact. A hot water circulating pump, a valve and the like of the heating system are subjected to interlocking control with a temperature sensor TICR, when the temperature reaches, heat supply can be stopped, and when the temperature is insufficient, heat supply is started. The biogas booster fan and the pressure sensor PICR are controlled in an interlocking mode, when the pressure reaches, the booster fan is started to extract biogas in the reactor, and when the pressure is insufficient, the booster fan stops working. The feeding and discharging are also automatically controlled by the PLC.
This anaerobic reaction device through the mode that mechanical stirring and gas-liquid mixing hydraulic stirring system combined together, can avoid the anaerobic reactor top to produce the problem of crust, anaerobic reactor bottom production deposit for the inside fermentation substrate of anaerobic reactor is in the state of mixing entirely, and anaerobic microorganisms fully contacts with the fermentation substrate, can make the abundant fermentation of material, reduces the fermentation cycle of material, improves anaerobic reactor's load. Meanwhile, the gas-liquid mixing hydraulic stirring system can bring ammonia gas in a dissolved state in the fermentation liquor into the methane, so that the accumulation of ammonia nitrogen in the fermentation liquor is reduced, and the risk of ammonia nitrogen inhibition is obviously reduced. The method of injecting oxygen into the anaerobic reactor is adopted to carry out in-situ oxygen biological desulfurization, so that the load of a desulfurization system in rear-end biogas purification can be reduced, the construction cost is saved, and the desulfurization efficiency is improved by over 85 percent. The discharge buffering device is arranged to avoid disturbance to the fermentation substrate in the anaerobic reactor during discharging, and the stable proceeding of the anaerobic fermentation of the substrate is ensured.
The outer parcel in proper order of ejection of compact buffer tank has heat preservation and inoxidizing coating, install the discharge pump on the discharging pipe, level sensor is still installed to the ejection of compact buffer tank, and level sensor carries out chain control with the discharge pump.
The inventive concept is explained in detail herein using specific examples, and the above description of the embodiments is only used to help understand the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the invention are all included within the scope of the invention.
Claims (10)
1. The utility model provides an anaerobic reaction device for handling birds excrement is dirty, a serial communication port, including anaerobic reactor and ejection of compact buffer tank, be equipped with the agitator in the anaerobic reactor, anaerobic reactor still is connected with inlet pipe and communicating pipe respectively, and the inlet pipe is located the inside opening setting of anaerobic reactor more than the design liquid level, communicating pipe is connected with ejection of compact buffer tank again, the ejection of compact buffer tank is connected with the discharging pipe.
2. The anaerobic reactor according to claim 1, wherein the communicating pipe comprises an upper communicating pipe and a lower communicating pipe, the upper communicating pipe communicates with a space above a design liquid level in the anaerobic reactor and a space above a design liquid level in the discharge buffer tank, and the lower communicating pipe communicates with a space below a design liquid level in the anaerobic reactor and a space below a design liquid level in the discharge buffer tank.
3. The anaerobic reaction device as claimed in claim 1, wherein the discharging buffer tank is sequentially wrapped with a heat insulation layer and a protective layer, the discharging pipe is provided with a discharging pump, the discharging buffer tank is further provided with a liquid level sensor, and the liquid level sensor and the discharging pump are in interlocking control.
4. The anaerobic reaction device of claim 1, wherein the anaerobic reactor is further connected with a gas-liquid mixing hydraulic stirring system, and the gas-liquid mixing hydraulic stirring system comprises a material suction pipeline, a cutting pump and a material feeding pipeline which are connected in sequence, wherein the material suction pipeline is connected with the anaerobic reactor to suck the fermentation substrate in the anaerobic reactor, and the material feeding pipeline is connected with the anaerobic reactor to feed the fermentation substrate cut by the cutting pump into the anaerobic reactor.
5. The anaerobic reactor according to claim 4, characterized in that the number of the feed pipes is three, and the outlet of each feed pipe is respectively positioned at different heights below the designed liquid level in the anaerobic reactor.
6. The anaerobic reaction device of claim 5, wherein the outlets of the three feeding pipes are respectively positioned at the positions which are 0.5m and 5.0 m below the designed liquid level in the anaerobic reactor and 1.0m above the bottom of the anaerobic reactor.
7. An anaerobic reaction device according to any one of claims 1 to 6, wherein the anaerobic reactor is further connected with an oxygen inlet pipe, and the outlet position of the oxygen inlet pipe in the anaerobic reactor is higher than the designed liquid level.
8. The anaerobic reactor according to any one of claims 1 to 6, wherein the anaerobic reactor is further provided with a heating system comprising a hot water supply pipe, a heating coil and a hot water return pipe which are connected in sequence, wherein the heating coil is located in the anaerobic reactor.
9. The anaerobic reaction device as claimed in any one of claims 1 to 6, wherein the anaerobic reactor is further provided with a biogas outlet pipe, a biogas booster fan, a flow meter and a condensed water collecting device.
10. An anaerobic reactor device according to any one of claims 1-6, characterized in that the anaerobic reactor has a viewing window at a position 0.3m above the design liquid level.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965070.3U CN218372057U (en) | 2022-11-08 | 2022-11-08 | Anaerobic reaction device for treating poultry manure |
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| CN202222965070.3U CN218372057U (en) | 2022-11-08 | 2022-11-08 | Anaerobic reaction device for treating poultry manure |
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| CN218372057U true CN218372057U (en) | 2023-01-24 |
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| CN202222965070.3U Active CN218372057U (en) | 2022-11-08 | 2022-11-08 | Anaerobic reaction device for treating poultry manure |
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