CN211677011U

CN211677011U - Fermentation tail gas absorbs odour removal device

Info

Publication number: CN211677011U
Application number: CN202020182459.9U
Authority: CN
Inventors: 秦金涛; 李想; 张高鹏; 郭辉辉; 褚东领; 史立军; 秦天苍; 崔凤霞; 张抗; 郑志荣; 陈宏站; 方百谦; 龚舒; 信芳; 徐琳; 杨拓; 刘银霞; 郭金权; 王峥; 吴娜
Original assignee: Xintuoyang Bioengineering Co ltd
Current assignee: Xintuoyang Bioengineering Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-10-16
Anticipated expiration: 2030-02-17

Abstract

The utility model relates to a fermentation tail gas absorbs odour removal device, wash case, cyclone including tubulation condenser, alkali, the tubulation condenser has tail gas import, tail gas export, and tail gas export and first pipe connection, the end of first pipeline stretches into the alkali washes the incasement, and this end is less than the alkali lye liquid level that the case was washed to alkali, and the alkali washing case top is equipped with alkali lye and pours into the buffer tank into, and alkali lye pours into the buffer tank and is connected with the alkali washing case through annotating the liquid pipe for pour into alkali lye into to the alkali washing case, the alkali washing case passes through the second pipeline and is connected with cyclone's air inlet, and the hookup location of second pipeline is higher than the alkali lye liquid level. The utility model discloses a deodorizing device is absorbed to fermentation tail gas makes tail gas pass through the condenser earlier, passes through the processing of lye tank again, through cyclone at last, and the gas emission after will handling is to the atmosphere, and multilevel processing can reduce smell and part harmful component in the gas, pollution abatement.

Description

Fermentation tail gas absorbs odour removal device

Technical Field

The utility model relates to a supporting tail gas processing apparatus technical field of fermentation equipment, concretely relates to fermentation tail gas absorbs odour removal device.

Background

At present, in the production of vitamin C, D-ribose and D-sodium isoascorbate, corn steep liquor and other small materials are used in the fermentation process, and the tail gas discharged in the fermentation and disinfection process has special smell. The tail gas is directly discharged into the atmosphere to cause certain pollution to the environment, so that common manufacturers also adopt corresponding tail gas treatment devices and discharge the tail gas after treatment.

The invention discloses a fermentation tail gas centralized treatment device and an application method thereof as disclosed in the patent application publication No. CN108970326A, wherein the treatment device comprises two fermentation tanks, a gas collection main pipeline, a fan and a condensation absorption tank, tail gas outlets of the two fermentation tanks are respectively communicated with one end of the gas collection main pipeline through branch pipes, and the other end of the gas collection main pipeline is communicated with the upper end of the condensation absorption tank. The upper end of the condensation absorption tank is provided with an exhaust port. Harmful components in the tail gas are absorbed only by the condensing absorption tank directly, and although the aim of simplifying equipment is achieved, the treatment effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fermentation tail gas absorbs odour removal device handles the tail gas that the fermentation cylinder produced, improves the treatment effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

fermentation tail gas absorbs odour removal device, including tubulation condenser, alkali washing case, cyclone, the tubulation condenser has tail gas import, tail gas export, and tail gas export and first pipe connection, the end of first pipeline stretches into in the alkali washing case, and this end is less than the alkali lye liquid level of alkali washing case, and alkali washing case top is equipped with alkali lye and pours into the buffer tank into, and alkali lye pours into the buffer tank and is connected with alkali washing case through annotating the liquid pipe for pour into alkali lye into to alkali washing case, alkali washing case pass through the second pipeline and be connected with cyclone's air inlet, the hookup location of second pipeline is higher than the alkali lye liquid level.

Furthermore, the tube array condenser is obliquely arranged, a water inlet of cooling water on the periphery of the tube array condenser is positioned below one end of the tube array condenser, a water outlet of the cooling water is positioned above the other end of the tube array condenser, and the cooling water enters from bottom to top.

Further, the inclination angle of the tube nest condenser is 5-15 degrees.

Furthermore, the end part of the first pipeline, which extends into the alkali liquor, is in a bell mouth shape.

Furthermore, a drain pipe is arranged at the bottom of the alkali washing tank, a drain valve is arranged on the drain pipe, and the drain pipe is used for being connected with the waste alkali tank.

Furthermore, an exhaust port is formed in the upper portion of the cyclone separator, a liquid discharge pipe is arranged at the bottom of the cyclone separator, and a liquid seal is arranged on the liquid discharge pipe.

The utility model has the advantages that:

the utility model discloses a deodorizing device is absorbed to fermentation tail gas for fermentation cylinder exhaust tail gas passes through the condenser earlier, passes through the processing of lye tank again, through cyclone at last, and the gas emission after will handling is to the atmosphere. Can reduce the odor and partial harmful components in the gas and reduce pollution. Compared with the mode of only passing through the condensing tank in the prior art, the fermentation tail gas absorption and odor removal device has the advantages of multi-stage treatment, better tail gas treatment effect, increased complex equipment and excessive cost input, and good market application prospect.

Drawings

FIG. 1 is a schematic diagram of the absorption and odor removal device for fermentation exhaust gas.

Names corresponding to the marks in the figure:

1. the device comprises a shell and tube condenser, 11, a tail gas inlet, 12, a water outlet, 13, a water inlet, 14, a tail gas outlet, 2, a first pipeline, 3, an alkali washing box, 4, an alkali liquor liquid level, 5 and an alkali liquor injection buffer tank, 51, a liquid injection valve, 6, a second pipeline, 7, a blow-off pipe, 71, a blow-off valve, 8, a cyclone separator, 81, an air inlet, 82, an air outlet, 83, a liquid discharge pipe, 831 and a liquid seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

The embodiment of the utility model provides a:

as shown in figure 1, the fermentation tail gas absorption and odor removal device comprises a tube array condenser 1, an alkaline washing tank 3 and a cyclone separator 8, wherein the tube array condenser 1 is provided with a tail gas inlet 11 and a tail gas outlet 14, the tail gas inlet 11 is used for being connected with a gas collecting pipe, the gas collecting pipe is connected with a tail gas discharge port of a fermentation tank, and tail gas is led into the tube array condenser 1. The off-gas outlet 14 is connected to the first conduit 2.

And a circulating water pipe is arranged on the periphery of the tube nest condenser 1 and is filled with cooling water. The water inlet 13 of the cooling water is positioned below one end of the tube array condenser, and the water outlet 12 is positioned above the other end of the tube array condenser 1, namely the cooling water enters from bottom to top.

The shell and tube condenser 1 is obliquely arranged, the inclination angle of the shell and tube condenser 1 is 5-15 degrees, condensate accumulation is reduced, and backflow is prevented to influence fermentation quality. The tail gas passes through the tube still condenser, the temperature is reduced, and partial condensed water is generated. The uncondensed gases enter the first conduit 2.

The end of the first pipe 2 extends into the caustic wash tank 3 and is lower than the lye level 4 of the caustic wash tank, i.e. into the lye. The end part of the first pipeline 2 extending into the alkali liquor is in a horn mouth shape and is arranged downwards, so that the contact area of the tail gas and the alkali liquor is increased, and backflow can be prevented. The alkali liquor can be a sodium hydroxide or potassium hydroxide solution with the mass percentage concentration of 5-20% for adsorption reaction treatment of acidic impurities and the like in the tail gas.

An alkali liquor injection buffer tank is arranged above the alkali washing tank 3, and an alkali liquor injection buffer tank 5 is connected with the alkali washing tank through an injection pipe and is used for injecting alkali liquor into the alkali washing tank. The lower part of the alkali liquor injection buffer tank 5 is provided with an injection pipe which is provided with an injection valve 51 and can be opened or closed, and the injection valve is opened during injection.

The alkali washing box 3 is connected with an air inlet 81 of the cyclone separator 8 through a second pipeline 6, the connecting position of the second pipeline 6 is higher than the alkali liquor level 4, and the gas treated by the alkali liquor enters the cyclone separator 8 through the second pipeline 6.

The bottom of the alkali washing box 3 is provided with a drain pipe 7, the drain pipe 7 is provided with a drain valve 71, the drain pipe 7 is used for being connected with a waste alkali tank (not shown), and the drain valve is opened to regularly clean the alkali washing box. The waste alkali tank is used for collecting waste alkali liquid.

The cyclone separator 8 has an air outlet 82 at the top, a liquid discharge pipe 83 at the bottom of the cyclone separator 8, and a liquid seal 831 on the liquid discharge pipe 83. The discharge pipe 83 is provided with an S-bend section provided with a liquid seal, i.e. a section of normally present liquid. The liquid is discharged to a waste tank through a drain pipe 83 and the gas is discharged to the atmosphere through an exhaust port 82.

The utility model discloses a deodorizing device is absorbed to fermentation tail gas for fermentation cylinder exhaust tail gas passes through the condenser earlier, passes through the processing of lye tank again, through cyclone at last, and the gas emission after will handling is to the atmosphere. Can reduce the odor and partial harmful components in the gas and reduce pollution. Compared with the prior art, the method only adopts a condensing tank, has better treatment effect, does not adopt complex equipment, and does not increase too much cost.

Claims

1. Fermentation tail gas absorbs odour removal device, its characterized in that: including tubulation condenser, alkali washing case, cyclone, the tubulation condenser has tail gas import, tail gas export, and the tail gas export is connected with first pipeline, and the end of first pipeline stretches into in the alkali washing case, and this end is less than the alkali lye liquid level of alkali washing case, alkali washing case top is equipped with alkali lye and pours into the buffer tank into, and alkali lye pours into the buffer tank and is connected with alkali washing case through annotating the liquid pipe for pour into alkali lye into to alkali washing case, alkali washing case pass through the second pipeline and are connected with cyclone's air inlet, and the hookup location of second pipeline is higher than the alkali lye liquid level.

2. The fermentation tail gas absorption and odor removal device according to claim 1, wherein: the shell and tube condenser is obliquely arranged, a water inlet of cooling water on the periphery of the shell and tube condenser is positioned below one end of the shell and tube condenser, a water outlet of the cooling water is positioned above the other end of the shell and tube condenser, and the cooling water enters from bottom to top.

3. The fermentation tail gas absorption and odor removal device according to claim 2, wherein: the inclination angle of the tube nest condenser is 5-15 degrees.

4. The fermentation tail gas absorption and odor removal device according to claim 1, wherein: the end part of the first pipeline extending into the alkali liquor is in a bell mouth shape.

5. The fermentation tail gas absorption and odor removal device according to claim 1, wherein: the bottom of the alkali washing box is provided with a drain pipe, a drain valve is arranged on the drain pipe, and the drain pipe is used for being connected with the waste alkali tank.

6. The fermentation tail gas absorption and odor removal device according to claim 1, wherein: the upper part of the cyclone separator is provided with an exhaust port, the bottom of the cyclone separator is provided with a liquid discharge pipe, and a liquid seal is arranged on the liquid discharge pipe.