Tail gas treatment device for tetanus fermentation tank

Abstract

The utility model discloses a tetanus fermentation tank tail gas treatment device which comprises a fermentation tank, a tail gas discharge pipeline of the fermentation tank is provided with a one-way valve, and the fermentation tank is connected with a waste gas absorption alkali barrel through the tail gas discharge pipeline; the tail end of the tail gas discharge pipeline is connected with a gas inlet pipeline; and the gas inlet pipeline is positioned in the waste gas absorption alkali barrel. According to the mode, the harm caused by hydrogen sulfide in tail gas emission of a broken fermentation tank can be solved, the hydrogen sulfide in the tail gas is fully absorbed by a large amount of alkali liquor, the situation that odor and toxic gas appear in an indoor working place and harm health of people is avoided, and meanwhile high energy cost and safety risks are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation tank tail gas treatment, in particular to a tail gas treatment device for a tetanus fermentation tank. Background Art

[0002] Hydrogen sulfide is generated during the cultivation process of the tetanus fermentation tank. If only filtered during the tail gas treatment process, hydrogen sulfide cannot be removed. Hydrogen sulfide is somewhat toxic and harmful to the physical health of personnel. Discharging it into the wastewater system is likely to emit into the environment and produce odors. The conventional tail gas of the tetanus fermentation tank is filtered and then discharged after circulating spraying / burning. Although circulating spraying / burning can remove hydrogen sulfide, the energy cost is relatively high, and it brings safety risks. Therefore, how to effectively remove hydrogen sulfide generated during the tail gas treatment process of the tetanus fermentation tank is an urgent problem to be solved. Summary of the Utility Model

[0003] The technical problem solved by the utility model is to provide a tail gas treatment device that can effectively remove hydrogen sulfide existing in the tail gas of the tetanus fermentation tank.

[0004] To solve the above technical problem, one technical solution adopted by the utility model is:

[0005] A tail gas treatment device for a tetanus fermentation tank, comprising: a fermentation tank, a one-way valve is arranged on the tail gas discharge pipeline of the fermentation tank, and the fermentation tank is connected to an exhaust gas absorption alkali barrel through the tail gas discharge pipeline;

[0006] The tail end of the tail gas discharge pipeline is connected to an intake pipeline, and the intake pipeline is located inside the exhaust gas absorption alkali barrel.

[0007] Preferably, the intake pipeline is in an "L" shape, and small holes are arranged on the exhaust pipeline.

[0008] Preferably, an exhaust pipeline is arranged above the exhaust gas absorption alkali barrel, and the tail gas treated by the exhaust gas absorption alkali barrel is discharged outside the room through the exhaust pipeline.

[0009] Preferably, a control valve is arranged on the exhaust pipeline.

[0010] Preferably, a liquid level controller is installed on the exhaust gas absorption alkali barrel, and the liquid level controller is connected to a control system.

[0011] Preferably, a replenishing alkali barrel is arranged above the exhaust gas absorption alkali barrel, and the replenishing alkali barrel is connected to the exhaust gas absorption alkali barrel through a pipeline.

[0012] Preferably, a manual valve is arranged on the pipeline, and the manual valve is in a normally open state.

[0013] Preferably, an automatic valve is further provided on the pipeline. The automatic valve is close to the alkali replenishing tank and is linked with the liquid level controller.

[0014] Preferably, a sewage discharge pipeline is provided on one side of the waste gas absorption alkali tank.

[0015] Preferably, a pneumatic valve is provided on the sewage discharge pipeline.

[0016] The beneficial effects of the present utility model are as follows:

[0017] For the tail gas treatment device of a tetanus fermenter of the present utility model, by adding a check valve, a waste gas absorption alkali tank, a liquid level controller, an alkali replenishing tank, etc. on the pipeline for discharging the tail gas of the tetanus fermenter, the harm caused by hydrogen sulfide in the tail gas discharge of the tetanus fermenter is solved. A large amount of hydrogen sulfide in the tail gas is fully absorbed by the alkali solution, avoiding the occurrence of odors and toxic gases in the indoor workplace, which endangers the health of personnel. At the same time, higher energy costs and safety risks are avoided. Description of the Drawings

[0018] Figure 1 is a schematic perspective view of a preferred embodiment of the tail gas treatment device of the tetanus fermenter of the present utility model;

[0019] Figure 2 is a schematic view of the intake pipeline in the tail gas treatment device of the tetanus fermenter shown;

[0020] The markings of each component in the drawings are as follows:

[0021] 1, fermenter; 2, tail gas discharge pipeline; 3, check valve; 4, waste gas absorption alkali tank; 5, liquid level controller; 6, alkali replenishing tank; 7, pipeline; 8, manual valve; 9, sewage discharge pipeline; 10, pneumatic valve; 11, intake pipeline; 12, small hole; 13, exhaust valve; 14, switch valve; 15, control valve; 16, automatic valve; 17, exhaust pipeline. Detailed Embodiments

[0022] The following describes in detail the preferred embodiments of the present utility model with reference to the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0023] Embodiment:

[0024] This embodiment introduces the structure of a tail gas treatment device for a tetanus fermenter.

[0025] As Figure 1 shown, Figure 1 is a schematic perspective view of a preferred embodiment of the tail gas treatment device of the tetanus fermenter of the present utility model.

[0026] A device for treating the tail gas of a tetanus fermenter, comprising: a fermenter 1, a check valve 3 is provided on the tail gas discharge pipe 2 of the fermenter 1, and the fermenter 1 is connected to an exhaust gas absorption alkali barrel 4 through the tail gas discharge pipe 2; the tail end of the tail gas discharge pipe 2 is connected to an intake pipe 11, and the intake pipe 11 is located inside the exhaust gas absorption alkali barrel 4.

[0027] In this embodiment, by adding a check valve to the tail gas discharge pipe of the fermenter, the alkali liquor is prevented from being siphoned into the fermenter in certain cases.

[0028] An exhaust valve 13 is provided on the tail gas discharge pipe 2. When the pressure in the fermenter 1 rises, the exhaust valve is opened to discharge the exhaust gas, so as to avoid excessive pressure in the fermenter.

[0029] A switching valve 14 is provided on the tail gas discharge pipe at the front end of the check valve 3. The switching valve 14 is in an open state during the cultivation of the fermenter 1, and the tail gas generated in the fermenter is controlled to enter the exhaust gas absorption alkali barrel 4 through the switching valve 14.

[0030] In this embodiment, the capacity of the exhaust gas absorption alkali barrel is 50L. The capacity of the exhaust gas absorption alkali barrel can be selected and set according to actual use.

[0031] As Figure 2 shown, Figure 2 is a schematic diagram of the intake pipe in the device for treating the tail gas of the tetanus fermenter shown.

[0032] The intake pipe 11 is in an "L" shape, and small holes 12 are provided on the intake pipe 11. The purpose of setting small holes on the intake pipe is to increase the distribution of exhaust gas, so that the tail gas is more fully absorbed by the alkali liquor in the exhaust gas absorption alkali barrel and the treatment effect is better.

[0033] In this embodiment, through this intake pipe, the tail gas generated from the fermenter enters the exhaust gas absorption alkali barrel through the tail gas discharge pipe and the intake pipe. The hydrogen sulfide contained in the tail gas undergoes an acid-base neutralization reaction with the alkali liquor and is absorbed by the excessive alkali liquor.

[0034] Furthermore, an exhaust pipe 17 is provided above the exhaust gas absorption alkali barrel 4. The remaining non-toxic tail gas after being absorbed and treated by the alkali liquor in the exhaust gas absorption alkali barrel is discharged to the outside of the room through the exhaust pipe 17.

[0035] Furthermore, a control valve 15 is provided on the exhaust pipe 17. The exhaust gas treated in the exhaust gas absorption alkali barrel 4 is discharged to the outside through the control valve 15. In addition to discharging the treated exhaust gas, the control valve can also be used to balance the pressure in the exhaust gas absorption alkali barrel and the atmospheric pressure to prevent negative pressure.

[0036] Furthermore, a liquid level controller 5 is installed on the waste gas absorption alkali tank 4, and the liquid level controller 5 is connected to the control system. By installing the liquid level controller, it is used to automatically control the replenishment liquid level of the alkali liquid to avoid the failure of tail gas treatment.

[0037] Furthermore, a replenishing alkali tank 6 is arranged above the waste gas absorption alkali tank 4, and the replenishing alkali tank 6 is connected to the waste gas absorption alkali tank 4 through a pipeline 7.

[0038] Furthermore, a manual valve 8 is arranged on the pipeline 7, and the manual valve 8 is in a normally open state.

[0039] An automatic valve 16 is also arranged on the pipeline 7. The automatic valve 16 is close to the replenishing alkali tank 6 and is linked with the liquid level controller. The automatic valve 16 is used to control the alkali liquid replenished into the waste gas absorption alkali tank 4.

[0040] In this embodiment, the manual valve 8, the automatic valve 16 and the liquid level controller 5 are linked by high and low liquid level signals. The liquid level controller 5 is connected to the control system. When the alkali liquid in the waste gas absorption alkali tank 4 is used up to the low liquid level signal, the automatic valve 16 will automatically open, and the pre-prepared alkali liquid in the replenishing alkali tank 6 will flow into the waste gas absorption alkali tank 4. When the liquid level reaches the high liquid level, the automatic valve 16 will automatically close.

[0041] Furthermore, a sewage discharge pipeline 9 is arranged on one side of the waste gas absorption alkali tank 4; a pneumatic valve 10 is arranged on the sewage discharge pipeline 9 for discharging the used alkali liquid.

[0042] Through the introduction of the above embodiments, the tail gas treatment device can effectively remove hydrogen sulfide existing in the tail gas of the tetanus fermenter and avoid the problems of personnel health and environmental pollution caused by hydrogen sulfide.

[0043] Compared with the absorption device using circulating spray, the tail gas treatment device not only achieves the effect of tail gas treatment, but also does not consume a large amount of energy, has no noise pollution, is relatively green and environmentally friendly, has low energy cost, and high safety.

[0044] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A tetanus fermentation tank tail gas treatment device, characterized in that: include: A fermentation tank (1), wherein a check valve (3) is provided on an exhaust gas discharge pipe (2) of the fermentation tank (1), and the fermentation tank (1) is connected to an exhaust gas absorption alkali barrel (4) via the exhaust gas discharge pipe (2); The tail end of the tail gas emission pipeline (2) is connected to an air intake pipeline (11), and the air intake pipeline (11) is located in the exhaust gas absorption alkali barrel (4).

2. A tetanus fermentation tank tail gas treatment device according to claim 1, characterized in that: The air intake pipe (11) is L-shaped, and a small hole (12) is provided on the air intake pipe (11).

3. A tetanus fermentation tank tail gas treatment device according to claim 1, characterized in that: An exhaust pipe (17) is arranged above the waste gas alkali absorption barrel (4), and the tail gas treated by the waste gas alkali absorption barrel (4) is discharged out of the room through the exhaust pipe (17).

4. A tetanus fermentation tank tail gas treatment device according to claim 3, characterized in that: A control valve (15) is provided on the exhaust pipe (17).

5. A tetanus fermentation tank tail gas treatment device according to claim 1, characterized in that: A liquid level controller (5) is installed on the waste gas alkali absorption barrel (4), and the liquid level controller (5) is connected to a control system.

6. A tetanus fermentation tank tail gas treatment device according to claim 5, characterized in that: A liquid replenishing alkali barrel (6) is arranged above the waste gas absorbing alkali barrel (4), and the liquid replenishing alkali barrel (6) is connected to the waste gas absorbing alkali barrel (4) via a pipeline (7).

7. A tetanus fermentation tank tail gas treatment device according to claim 6, characterized in that: The pipeline (7) is provided with a hand valve (8), and the hand valve (8) is in a normally open state.

8. A tetanus fermentation tank tail gas treatment device according to claim 6, characterized in that: An automatic valve (16) is also provided on the pipeline (7). The automatic valve (16) is close to the alkali replenishment barrel (6) and is linked to the liquid level controller (5).

9. A tetanus fermentation tank tail gas treatment device according to claim 1, characterized in that: A sewage discharge pipe (9) is provided on one side of the waste gas alkali absorption barrel (4).

10. A tetanus fermentation tank tail gas treatment device according to claim 9, characterized in that: The sewage discharge pipe (9) is provided with a pneumatic valve (10).

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