CN211035886U

CN211035886U - Microbial fermentation tail gas treatment device

Info

Publication number: CN211035886U
Application number: CN201921719232.7U
Authority: CN
Inventors: 李伟; 杨芳丽; 黄明媛; 陈仕宏; 杜景德
Original assignee: Yunnan Bosar Biotechnology Co ltd
Current assignee: Yunnan Bosar Biotechnology Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-17
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a microbial fermentation tail gas treatment device, belonging to the technical field of microbial fermentation tail gas treatment devices; comprises a fermentation tank, a gas-liquid separation device, a first peculiar smell removal device, a sterilization device and a second peculiar smell removal device; a tail gas pipe and a return pipe are arranged between the fermentation tank and the gas-liquid separation device, the tail end of an exhaust pipe of the gas-liquid separation device is connected with a first peculiar smell removal device, the tail end of the exhaust pipe of the first peculiar smell removal device is connected with a degerming device, the tail end of the exhaust pipe of the degerming device is connected with a second peculiar smell removal device, the head end of the exhaust pipe of the second peculiar smell removal device is arranged in the top of the second peculiar smell removal device, more than three layers of active carbon layers are arranged in the first peculiar smell removal device; the utility model discloses collect fermentation tail gas and divide liquid, retrieve, deodorization, degerming, secondary deodorization as an organic whole, guarantee that tail gas at utmost purifies totally, simple structure, economic environmental protection.

Description

Microbial fermentation tail gas treatment device

Technical Field

The utility model relates to a microbial fermentation tail gas processing apparatus belongs to microbial fermentation tail gas processing apparatus technical field.

Background

With the rapid development of modern biotechnology represented by genetic engineering, cell engineering, enzyme engineering and fermentation engineering, biological fermentation products have become one of the most active industries in investment in the 21 st century. The fermentation is a reaction process of decomposing organic matters, producing and accumulating special metabolites through the growth culture and chemical change of microorganisms, and the metabolites of the microorganisms are fermentation products. In the process of biological fermentation production, when biological bacteria are subjected to production metabolism in a fermentation tank, a large amount of tail gas is generated, part of fermentation metabolites are discharged along with the tail gas and accompanied with special unpleasant gas, and the gas contains various bacteria microorganisms and cannot be directly discharged into the atmosphere, so that the tail gas needs to be sterilized, and a tail gas treatment system needs to be adopted to prevent the microorganisms which are not naturally generated, such as genetically engineered bacteria or viruses, from being discharged into the atmosphere, thereby possibly causing great harm to the environment. The conventional treatment system generally passes through a treatment apparatus such as a spray tower and a sterilization apparatus.

Most products absorbed by the existing spray tower are substances which are insoluble in water, and in the process of alkali spray reaction, dirt accumulated in each filter layer after long-term use can increase the wind resistance of the spray tower, reduce the treatment effect of the spray tower and be not beneficial to the circulating operation of an alkali spray system, so that the dirt cleaning work needs to be carried out regularly, but the inside of the spray tower is inconvenient to maintain, consumes time and labor during cleaning and maintenance, and needs to be additionally connected with accessories such as a water tank; most of the existing tail gas sterilizing devices have complex structures or unsatisfactory filtering effects.

The method effectively removes live bacteria and harmful substances in the tail gas discharged from the fermentation tank, and is one of the key factors for ensuring the safety in the production process of biological aerobic fermentation. And a large amount of liquid foam is carried in the tail gas, and if the tail gas is not properly treated, the tail gas is bound to take out a large amount of liquid foam, namely the tail gas is called as 'liquid escape', on one hand, the environment pollution is caused, the fermentation contamination is caused in serious cases, on the other hand, the capacity of fermentation liquor is reduced, and the yield is reduced. Under the production working condition of high ventilation volume, the generated negative effects are increasingly obvious. Therefore, the high-efficiency and safe tail gas treatment system is a reliable guarantee for the safety of the biological aerobic fermentation production process, the product quality and the production environment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a microbial fermentation tail gas treatment device.

The utility model adopts the technical proposal that: a microbial fermentation tail gas treatment device comprises a fermentation tank, a gas-liquid separation device, a first peculiar smell removal device, a sterilization device and a second peculiar smell removal device; be provided with tail gas pipe, back flow between fermentation cylinder and the gas-liquid separation device, the terminal first peculiar smell device that removes of access of gas-liquid separation device blast pipe, the terminal degerming device that inserts of first peculiar smell device blast pipe, the terminal second peculiar smell device that removes that inserts of degerming device blast pipe, the second peculiar smell device blast pipe head end sets up in the second peculiar smell device top that removes, is provided with the activated carbon layer more than the three-layer in the first peculiar smell device that removes, and the second is provided with the hydrophobic molecular sieve more than the three-layer in removing the peculiar smell.

Furthermore, the tail end of the exhaust pipe of the gas-liquid separation device, the tail end of the exhaust pipe of the degerming device and the head end of the exhaust pipe of the second peculiar smell removal device are fixedly connected with conical funnels which are arranged in an inverted mode.

Furthermore, the big end of the conical funnel is closed, and the periphery of the conical funnel is provided with dense air outlet holes; the conical funnels at the tail ends of the exhaust pipes of the gas-liquid separation device and the degerming device can disperse tail gas entering the first peculiar smell removing device and the second peculiar smell removing device, and the tail gas entering the first peculiar smell removing device and the second peculiar smell removing device is prevented from being subjected to point-to-point spraying, so that the utilization rate of active carbon and the hydrophobic molecular sieve is reduced, and meanwhile, the tail gas is prevented from being aged to the spraying point; the conical funnel at the head end of the exhaust pipe of the second odor removing device can help to slow down the exhaust rate of the tail gas to be exhausted, and the contact absorption of the hydrophobic molecular sieve and the tail gas is further enhanced.

Furthermore, the tail end of the exhaust pipe of the second peculiar smell removal device is connected with a dispersed air outlet pipe.

Furthermore, the tail end of the dispersion air outlet pipe is closed, and the pipe body of the dispersion air outlet pipe is provided with dense air outlet holes; the dispersed air outlet pipe at the tail end of the exhaust pipe of the second peculiar smell removal device effectively prevents the tail gas from being directly discharged from one port in large quantity, and avoids the damage caused by the spraying of the tail gas to personnel or equipment; in addition, the tail gas that dispersion outlet duct will be discharged is the multiple spot emission for the mixture of tail gas and air, further reduces the peculiar smell of tail gas.

Furthermore, filter screens are arranged in the air outlet holes of the dispersion air outlet pipe and the conical funnel, and particulate matters in the tail gas can be filtered or removed.

Furthermore, the first peculiar smell removing device and the second peculiar smell removing device are cuboid, so that other structural devices can be conveniently placed or connected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses microbial fermentation tail gas processing apparatus collects fermentation tail gas and divides liquid, retrieves, deodorization, degerming, secondary deodorization as an organic whole, guarantees that tail gas at utmost purifies totally, simple structure, economic environmental protection. The tail gas deodorization adopts the combination of activated carbon and hydrophobic molecular sieve, and the peculiar smell removing effect is obvious, the production cost of the whole device is low, and the operation setting is not complex.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the structural schematic diagram of the cone-shaped funnel of the present invention.

Fig. 3 is the utility model discloses disperse outlet duct structure schematic diagram.

In the figure: 1-fermentation tank, 2-tail gas pipe, 3-return pipe, 4-gas-liquid separation device, 41-gas-liquid separation device exhaust pipe, 5-conical funnel, 6-first odor removing device, 61-first odor removing device exhaust pipe, 62-activated carbon layer, 7-degerming device, 71-degerming device exhaust pipe, 8-second odor removing device, 81-second odor removing device exhaust pipe, 82-hydrophobic molecular sieve and 9-dispersed gas outlet pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited thereto in any way, and any modification or improvement based on the teaching of the present invention is within the protection scope of the present invention.

As shown in fig. 1: a microbial fermentation tail gas treatment device comprises: the system comprises a fermentation tank 1, a gas-liquid separation device 4, a first peculiar smell removal device 6, a sterilization device 7 and a second peculiar smell removal device 8; be provided with between fermentation cylinder 1 and the gas-liquid separation device 4 tail gas pipe 2, back flow 3, the first peculiar smell device 6 that removes of gas-liquid separation device blast pipe 41 end access, first peculiar smell device blast pipe 61 end access bacteria removal device 7 that removes, bacteria removal device blast pipe 71 end access second peculiar smell device 8 that removes, second peculiar smell device blast pipe 81 head end sets up in second peculiar smell device 8 top that removes, be provided with more than three-layer active carbon layer 62 in the first peculiar smell device 6 that removes, be provided with more than three-layer hydrophobic molecular sieve 82 in the second peculiar smell device 8 that removes. The first peculiar smell removing device 6 and the second peculiar smell removing device 8 are cuboid in shape.

As shown in fig. 1, 2, and 3: the tail end of the gas-liquid separation device exhaust pipe 41, the tail end of the degerming device exhaust pipe 71 and the head end of the second peculiar smell removal device exhaust pipe 81 are fixedly connected with the cone-shaped funnel 5 which is arranged in an inverted mode; the big end of the conical funnel 5 is closed, and the periphery of the conical funnel 5 is provided with dense air outlet holes. The tail end of the exhaust pipe 81 of the second peculiar smell removing device is connected with a dispersed air outlet pipe 9, the tail end of the dispersed air outlet pipe 9 is closed, and the pipe body of the dispersed air outlet pipe 9 is provided with dense air outlet holes. The dispersing air outlet pipe 9 and the air outlet hole of the conical funnel 5 are internally provided with filter screens.

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a microbial fermentation tail gas processing apparatus, includes fermentation cylinder (1), its characterized in that: the device also comprises a gas-liquid separation device (4), a first peculiar smell removal device (6), a sterilization device (7) and a second peculiar smell removal device (8); be provided with between fermentation cylinder (1) and gas-liquid separation device (4) tail gas pipe (2), back flow (3), the first peculiar smell device (6) that removes of end access of gas-liquid separation device blast pipe (41), first peculiar smell device blast pipe (61) end access bacteria removal device (7), bacteria removal device blast pipe (71) end access second peculiar smell device (8), second peculiar smell device blast pipe (81) head end sets up in second peculiar smell device (8) top that removes, be provided with more than three-layer active carbon layer (62) in the first peculiar smell device (6) that removes, be provided with more than three-layer hydrophobic molecular sieve (82) in the second peculiar smell device (8).

2. The microbial fermentation tail gas treatment device of claim 1, wherein: the tail end of the gas-liquid separation device exhaust pipe (41), the tail end of the sterilizing device exhaust pipe (71) and the head end of the second peculiar smell removal device exhaust pipe (81) are fixedly connected with a cone-shaped funnel (5) which is arranged in an inverted mode.

3. The microbial fermentation tail gas treatment device of claim 2, wherein: the big end of the conical funnel (5) is closed, and the periphery of the conical funnel (5) is provided with dense air outlet holes.

4. The microbial fermentation tail gas treatment device of claim 3, wherein: the tail end of the exhaust pipe (81) of the second peculiar smell removing device is connected with a dispersed air outlet pipe (9).

5. The microbial fermentation tail gas treatment device of claim 4, wherein: the tail end of the dispersion air outlet pipe (9) is closed, and the pipe body of the dispersion air outlet pipe (9) is provided with dense air outlet holes.

6. The microbial fermentation tail gas treatment device of claim 5, wherein: and filter screens are arranged in the air outlet holes of the dispersion air outlet pipe (9) and the conical funnel (5).

7. The microbial fermentation tail gas treatment device of claim 6, wherein: the first peculiar smell removing device (6) and the second peculiar smell removing device (8) are cuboid in shape.