CN109824144B - Self-circulation anaerobic reactor - Google Patents
Self-circulation anaerobic reactor Download PDFInfo
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- CN109824144B CN109824144B CN201910282834.9A CN201910282834A CN109824144B CN 109824144 B CN109824144 B CN 109824144B CN 201910282834 A CN201910282834 A CN 201910282834A CN 109824144 B CN109824144 B CN 109824144B
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Abstract
The self-circulation anaerobic reactor is provided with a set of gas-liquid shunting device which consists of a guide cylinder, a gas collecting hood and a liquid blocking sleeve. The guide shell is vertically erected in the center of the tank; the cone-shaped gas-collecting hood divides the tank body into an upper reaction chamber and a lower reaction chamber, the guide cylinder penetrates through the center of the top of the gas-collecting hood and is in sealed connection with the gas-collecting hood, the bottom edge of the gas-collecting hood is in sealed connection with the wall of the tank, material passing holes are formed in the periphery close to the bottom edge, material passing pipes are connected to the material passing holes, and then the guide plates are connected to the material passing holes; the liquid blocking sleeve is sleeved on the guide cylinder below the gas collecting hood, and the bottom edge of the liquid blocking sleeve is hermetically connected with the guide cylinder; a circle of vent holes are arranged on the wall of the flow guide cylinder in the liquid blocking sleeve. When the reactor is operated, methane collected by the gas collecting hood enters the guide cylinder through the vent hole, rises and is released out of the reactor; the feed liquid is blocked by the liquid blocking sleeve, and only can enter the guide shell from the bottom, then rises to enter the upper part of the second reaction chamber, and then falls down and enters the first reaction chamber through the material pipe, so that one circulation of the feed liquid is completed. The reactor is suitable for fermentation raw materials with low suspended matters and also suitable for fermentation raw materials with high suspended matters.
Description
Technical Field
The invention relates to an anaerobic digestion reactor
Background
Anaerobic digestion is the process of converting organic matter into biogas by the union of various anaerobic bacteria. The quality of mass transfer directly influences the efficiency of anaerobic digestion, and most anaerobic reactors are provided with a feed liquid stirring device in order to improve the conversion efficiency. Most of them adopt mechanical stirring or pump circulation stirring, which consumes a large amount of energy. In order to reduce energy consumption, researchers try to stir feed liquid by using methane generated by anaerobic digestion, and successfully develop an IC (internal circulation) reactor, but the IC reactor is formed by improving an upflow anaerobic sludge blanket, and is only suitable for treating low-suspended-substance organic waste liquid like the upflow anaerobic sludge blanket.
Disclosure of Invention
The invention aims to provide a self-circulation anaerobic reactor which is simple in structure and low in cost. The problems of high energy consumption and difficult maintenance of power stirring are solved. Even if high suspended organic waste liquid is used as a fermentation raw material, the feed liquid can be stirred in a self-circulation manner, and the purposes of energy conservation, high efficiency and stable operation are achieved.
The self-circulation anaerobic reactor is characterized in that a set of gas-liquid shunting device is arranged in a tank and consists of a guide cylinder, a gas collecting hood and a liquid blocking sleeve. The guide shell is vertically erected in the center of the tank; the conical gas-collecting hood is arranged in the middle of the tank to separate the tank body into a first reaction chamber (lower) and a second reaction chamber (upper); the guide cylinder penetrates through the center of the top of the gas-collecting hood and is connected with the gas-collecting hood in a sealing way; the bottom edge of the gas-collecting hood is hermetically connected with the tank wall; the periphery close to the bottom edge of the gas collecting hood is provided with a material passing hole which is connected with a material passing pipe, and the material passing pipe is connected with a guide plate; the liquid blocking sleeve is sleeved on the guide flow cylinder below the gas collecting hood, and the sleeve bottom is hermetically connected with the guide flow cylinder wall; a circle of vent holes are arranged on the same horizontal line on the wall of the flow guide cylinder in the liquid blocking sleeve. When the reactor is fed and operated, the methane generated by the first reaction chamber is collected under the cover bottom by the gas collecting hood, and after the methane is accumulated to the upper edge of the vent hole, the accumulated methane enters the guide cylinder from the vent hole, then floats upwards to enter the second gas chamber, and is discharged out of the reactor from the methane pipe. The material liquid in the first reaction chamber is blocked by the liquid blocking sleeve, cannot enter the guide shell from the vent hole, only can enter the guide shell from the bottom, flows upwards under the drive of methane, enters the upper part of the second reaction chamber, then settles downwards, enters the upper part of the first reaction chamber through the material hole, and then descends to the bottom to complete a material liquid circulation. The reactor can continuously promote the continuous circulation of the feed liquid as long as the reactor normally produces gas.
Compared with an IC reactor, the self-circulation anaerobic reactor has the following characteristics: the structure is simple. The reactor is only provided with a set of gas-liquid shunting device; the IC reactor was provided with two sets of three-phase separators. And (II) the cycle range is wide. The reactor of the invention realizes the large circulation of the feed liquid of the whole reactor; the IC reactor only realizes the circulation of the feed liquid in the first reaction chamber. And (III) the application range is wide. The reactor of the invention is suitable for fermentation raw materials with low suspended matters and also suitable for fermentation raw materials with high suspended matters; the IC reactor can only be applied to low suspended solids fermentation feedstock.
Drawings
FIG. 1 is a schematic diagram of a self-circulating anaerobic reactor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The self-circulation anaerobic reactor is provided with a set of gas-liquid flow-dividing device in a tank, and the gas-liquid flow-dividing device consists of a guide cylinder [4], a gas-collecting hood [5] and a liquid-blocking sleeve [6 ]. The guide cylinder [4] is vertically and firmly arranged at the center of the tank, and has a diameter of 20-60 cm from the position 60-100 cm above the bottom of the tank to the water level line or the vicinity of the second reaction chamber [3 ]. The middle part of the conical gas-collecting hood [5] divides the tank body into a first reaction chamber [2] and a second reaction chamber [3], and the guide cylinder [4] vertically penetrates through the center of the top of the gas-collecting hood and is connected with the gas-collecting hood in a sealing way; the bottom edge of the gas-collecting hood (5) is hermetically connected with the tank wall (14), more than 8 material passing holes with the caliber of 30cm are arranged on the periphery close to the bottom edge of the gas-collecting hood, a material passing pipe (8) with the same caliber and the length of 50cm is connected downwards, and a guide plate (9) is connected downwards to the material passing pipe (8). The guide cylinder [4] is sleeved with the liquid blocking sleeve [6] below the gas collecting hood [5], the sleeve bottom is hermetically connected with the guide cylinder [4], and the diameter of the liquid blocking sleeve [6] is more than 20cm larger than that of the guide cylinder [4 ]; the upper opening of the liquid blocking sleeve (6) is lower than the top of the gas-collecting hood (5) by 60cm, and the lower bottom is lower than the bottom edge of the gas-collecting hood (5) by 30 cm. A circle of vent holes [7] are formed in the guide cylinder [4] which is in the same level with the bottom edge of the gas collecting hood [5] in the liquid blocking sleeve [6], and the size of each vent hole [7] is as follows: an isosceles triangle with the height of 5cm and the bottom of 3 cm; the distance between the 2 holes is 3-5 cm. When the reactor is fed and operated, feed liquid is pumped into the middle part of the first reaction chamber [2] through the feed pipe [1], and generated methane is collected by the gas collecting hood [5] and stored at a water level line [10] (which is a first gas chamber [11]) under the hood. Then the collected biogas enters the guide shell [4] through the vent hole [7], then floats upwards to enter the second gas chamber [12], and then is discharged out of the reactor from the biogas pipe [13 ]. The feed liquid in the first reaction chamber [2] is blocked by the liquid blocking sleeve [6] and cannot enter the guide shell [4] from the vent hole [7], and only can enter the guide shell [4] from the bottom, flows upwards under the drive of methane and enters the upper part of the second reaction chamber [3], then descends to the upper part of the first reaction chamber through the feed pipe [8], and then descends to the bottom of the tank, so that the circular stirring of the feed liquid is completed. The redundant feed liquid overflows to a discharge pipe [16] and is discharged.
Claims (1)
1. An anaerobic reactor with automatic circulation of feed liquid is characterized in that a set of gas-liquid shunting device is arranged in a tank and consists of a guide cylinder, a gas collecting hood and a liquid blocking sleeve; the guide shell is vertically erected in the center of the tank; the cone-shaped gas collecting hood divides the tank body into an upper reaction chamber and a lower reaction chamber in the middle of the tank, the guide cylinder penetrates through the center of the top of the gas collecting hood and is connected with the tank wall in a sealing way, the bottom edge of the gas collecting hood is connected with the tank wall in a sealing way, a material passing hole is formed in the periphery close to the bottom edge of the gas collecting hood, a material passing pipe is connected with the material passing pipe, and then a guide plate is connected with the material passing pipe; the liquid blocking sleeve is sleeved on the guide cylinder below the gas collecting hood, and the sleeve bottom is hermetically connected with the guide cylinder; the wall of the flow guide cylinder in the sleeve is provided with a circle of vent holes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282834.9A CN109824144B (en) | 2019-04-10 | 2019-04-10 | Self-circulation anaerobic reactor |
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| CN201910282834.9A CN109824144B (en) | 2019-04-10 | 2019-04-10 | Self-circulation anaerobic reactor |
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| CN109824144A CN109824144A (en) | 2019-05-31 |
| CN109824144B true CN109824144B (en) | 2022-07-01 |
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| CN111777177B (en) * | 2020-05-21 | 2022-05-03 | 河南国威市政工程有限公司 | Integrated micro-power sewage treatment device based on UASB reactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600438Y (en) * | 2003-01-01 | 2004-01-21 | 陈协 | Swirl auto-driven mass transfer anaerobic reactor |
| CN2700319Y (en) * | 2004-05-28 | 2005-05-18 | 陈协 | Multi rotational flow adaptive multicycle anaerobic reactor |
| CN201660495U (en) * | 2010-04-10 | 2010-12-01 | 类成明 | Double-way circulating anaerobic reactor |
| EP2394966A1 (en) * | 2010-05-19 | 2011-12-14 | Ambisys, s.a. | Apparatus for the retention of (bio)solids and a method for the treatment of a waste material using said apparatus |
| CN102897909A (en) * | 2011-07-25 | 2013-01-30 | 山东振龙生物化工集团有限公司 | Self-circulation anaerobic reactor |
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2019
- 2019-04-10 CN CN201910282834.9A patent/CN109824144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600438Y (en) * | 2003-01-01 | 2004-01-21 | 陈协 | Swirl auto-driven mass transfer anaerobic reactor |
| CN2700319Y (en) * | 2004-05-28 | 2005-05-18 | 陈协 | Multi rotational flow adaptive multicycle anaerobic reactor |
| CN201660495U (en) * | 2010-04-10 | 2010-12-01 | 类成明 | Double-way circulating anaerobic reactor |
| EP2394966A1 (en) * | 2010-05-19 | 2011-12-14 | Ambisys, s.a. | Apparatus for the retention of (bio)solids and a method for the treatment of a waste material using said apparatus |
| CN102897909A (en) * | 2011-07-25 | 2013-01-30 | 山东振龙生物化工集团有限公司 | Self-circulation anaerobic reactor |
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