System for new washing and concentrating operation mode of fermentation liquor

Abstract

The utility model discloses a system for a new washing and concentrating operation mode of fermentation liquor, which comprises a washing tank, concentrated yeast milk is stored in the washing tank, a liquid inlet pipe is arranged at the discharging end of the washing tank, and a plurality of separation modules are arranged on the liquid inlet pipe in parallel. The milk phase liquid outlet end of each separation module is connected with a yeast milk storage tank through a water phase liquid outlet module, every two adjacent separation modules form a group, and the separation modules in the same group are connected through a countercurrent module to form series washing; the water-phase liquid outlet end of each group of separation module close to one side of the washing tank is connected with a waste liquid collecting mechanism through a water-phase liquid outlet module, and the concentrated fermentation liquor is washed, so that the chromaticity of the fermentation liquor is reduced, and the drying effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of yeast production equipment, in particular to a system for a new washing and concentration operation mode of fermentation broth. Background Art

[0002] In the past, yeast mainly used molasses waste generated after sugar production in sugar factories as the growth carbon source. These molasses wastes contain a large amount of organic substances such as caramel with deep color and difficult to be utilized by microorganisms. Therefore, when washing and separating yeast fermentation broth in the prior art, the method shown in Figure 2 is often used. It is divided into multiple groups, which are connected in parallel between groups. Each group contains multiple separators connected in series, and the same batch of feed products are washed multiple times in sequence, and finally, the yeast milk with lighter color is separated.

[0003] However, with the improvement of the fermentation process, the growth carbon source has gradually been replaced from full molasses to hydrolyzed sugar with lighter color. The chromaticity of the yeast fermentation broth is lighter than that of the full molasses process, and continuous multiple washes are no longer required. If the existing washing mode is continued for washing, on the one hand, the generation of concentrated water is relatively high, and the environmental protection treatment pressure is large. On the other hand, the water consumption per unit of yeast production increases, and the production cost rises. Summary of the Utility Model

[0004] The utility model provides a system for a new washing and concentration operation mode of fermentation broth, aiming to solve the problem that the existing washing method is not very applicable from the perspectives of environmental protection and economy for washing yeast fermentation broth using hydrolyzed sugar as the carbon source.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A system for a new washing and concentration operation mode of fermentation broth includes a washing tank storing concentrated yeast milk inside. The discharge end of the washing tank is provided with a liquid inlet pipe, and several separation modules are connected in parallel on the liquid inlet pipe. The milk phase liquid outlet end of each separation module is connected to a yeast milk storage tank through a water phase liquid outlet module. Two adjacent separation modules among several separation modules form a group, and the separation modules in the same group are connected in series through a countercurrent module to form a series washing. The water phase liquid outlet end of the separation module in each group close to the washing tank is connected to a waste liquid collection mechanism through a water phase liquid outlet module.

[0007] Preferably, the number of separation modules is an even number.

[0008] More preferably, each separation module includes a liquid inlet branch pipe connected to the liquid inlet pipe. The other end of the liquid inlet branch pipe is provided with a separator, and the feed end of the separator is communicated with the liquid inlet pipe through the liquid inlet branch pipe.

[0009] Further, the countercurrent module includes a water inlet pipe and a return pipe. Among two separation modules in the same group, the water inlet pipe is connected to the liquid inlet branch pipe of the separation module on the side away from the washing tank, and the aqueous phase liquid outlet end of the separator on the side away from the washing tank is connected to the liquid inlet branch pipe of the separation module on the side close to the washing tank through the return pipe.

[0010] Furthermore, the milk phase liquid outlet module includes a plurality of milk phase liquid outlet branch pipes, which correspond to the separators one by one, and the milk phase liquid outlet branch pipes are connected to the milk phase liquid outlet ends of the corresponding separators. The other ends of the milk phase liquid outlet branch pipes are all connected in parallel to the same milk phase liquid outlet pipe, and the liquid outlet end of the milk phase liquid outlet pipe is connected to the liquid inlet end of the fermented milk storage tank.

[0011] Specifically, the aqueous phase liquid outlet module includes a plurality of waste liquid outlet branch pipes, which correspond to the groups of separation modules one by one, and the waste liquid outlet branch pipes are connected to the aqueous phase liquid outlet ends of the separators on the side close to the washing tank in the corresponding groups. The other ends of the waste liquid outlet branch pipes are all connected in parallel to the same waste liquid outlet pipe, and the liquid outlet end of the waste liquid outlet pipe is connected to the waste liquid collection mechanism.

[0012] More specifically, liquid inlet valves are provided on the liquid inlet branch pipes of the separation module, the water inlet pipe of the countercurrent module, and the return pipe, and liquid outlet valves are provided on the milk phase liquid outlet branch pipes of the milk phase liquid outlet module and the waste liquid outlet branch pipes of the aqueous phase liquid outlet module.

[0013] In detail, flow meters are provided on the water inlet pipe and the return pipe of the countercurrent module.

[0014] More in detail, a liquid inlet valve, a transfer pump, a thermometer, and a flow meter are sequentially provided on the liquid inlet pipe along the conveying direction at the starting end of the conveying.

[0015] The beneficial effects of the present utility model:

[0016] The present utility model separately connects each separation module including a separator to the liquid inlet pipe, so that each separation module directly washes the concentrated fermentation broth, reduces the chromaticity of the fermentation broth, ensures the drying effect, is applicable to the fermentation broth using hydrolyzed sugar as the growth carbon source, reduces the number of washing times, improves the washing efficiency, and at the same time cooperates with the countercurrent module to divide adjacent separation modules into a group for countercurrent washing, reduces the generation of concentrated water, is environmentally friendly and has a good washing effect. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the equipment connection of the present utility model;

[0018] Figure 2 is a washing flow chart of the yeast fermentation broth using full molasses as the growth carbon source in the background technology;

[0019] In the figure: 1. Washing tank; 2. Liquid inlet pipe;

[0020] 3. Separation module; 301. Liquid inlet branch pipe; 302. Separator;

[0021] 4. Milk-phase liquid outlet module; 401. Milk-phase liquid outlet branch pipe; 402. Milk-phase liquid outlet pipe;

[0022] 5. Fermented milk storage tank;

[0023] 6. Countercurrent module; 601. Water inlet pipe; 602. Return pipe;

[0024] 7. Aqueous-phase liquid outlet module; 701. Waste liquid outlet branch pipe; 702. Waste liquid outlet pipe;

[0025] 8. Liquid inlet valve; 9. Transfer pump; 10. Thermometer; 11. Flowmeter; 12. Liquid outlet valve. Specific implementation mode

[0026] As follows, the embodiments will be further described with reference to the accompanying drawings.

[0027] As Figure 1 shown, as a preferred Embodiment 1, a system for a new washing and concentration operation mode of fermentation broth includes a washing tank 1 storing concentrated fermented milk therein. The discharging end of the washing tank 1 is provided with a liquid inlet pipe 2. A plurality of separation modules 3 are connected in parallel to the liquid inlet pipe 2. The milk-phase liquid outlet ends of each separation module 3 are all connected to a fermented milk storage tank 5 through an aqueous-phase liquid outlet module 7. Every two adjacent separation modules 3 among the plurality of separation modules 3 form a group, and the separation modules 3 in the same group are connected through a countercurrent module 6 to form a series washing. The aqueous-phase liquid outlet ends of the separation modules 3 in each group close to the washing tank 1 are all connected to a waste liquid collection mechanism through an aqueous-phase liquid outlet module 7.

[0028] In Embodiment 1, each separation module 3 including a separator 302 is separately connected to the liquid inlet pipe 2, so that each separation module 3 directly washes the concentrated fermentation broth, reduces the chromaticity of the fermentation broth, ensures the drying effect, is applicable to the fermentation broth using hydrolyzed sugar as the growth carbon source, reduces the number of washing times, improves the washing efficiency, and at the same time cooperates with the countercurrent module 6 to divide the adjacent separation modules 3 into a group for countercurrent washing, reduces the generation of concentrated water, is environmentally friendly and has a good washing effect.

[0029] The number of the separation modules 3 is an even number. It is convenient for the complete installation of the countercurrent module 6 and no single separation module 3 will be left out.

[0030] Each of the separation modules 3 includes a liquid inlet branch pipe 301 connected to the liquid inlet pipe 2. The other end of the liquid inlet branch pipe 301 is provided with a separator 302, and the feed end of the separator 302 is communicated with the liquid inlet pipe 2 through the liquid inlet branch pipe 301. The separator 302 adopts the existing technology. After the washing solvent is mixed into the liquid inlet branch pipe 301, it enters the separator 302 from the feed end for separation. The separated aqueous phase is discharged through the aqueous phase liquid outlet end, and the separated emulsion phase is discharged through the emulsion phase liquid outlet end.

[0031] The countercurrent module 6 includes a water inlet pipe 601 and a return pipe 602. In the same group of two separation modules 3, the water inlet pipe 601 is connected to the liquid inlet branch pipe 301 of the separation module 3 on the side away from the washing tank 1, and the aqueous phase liquid outlet end of the separator 302 on the side away from the washing tank 1 is connected to the liquid inlet branch pipe 301 of the separation module 3 on the side close to the washing tank 1 through the return pipe 602. Adjacent two separation modules 3 are divided into a group, and the washing liquid is supplied in a manner opposite to the output direction of the liquid inlet pipe 2 within the group. Since the yeast fermentation broth uses hydrolyzed sugar as the growth carbon source and is relatively light in color itself, the washing solvent is first supplied to the farther separator 302 through the water inlet pipe 601, which is pure water at this time. After washing, the washing solvent mixed waste liquid is supplied to the nearer separator 302 through the return pipe 602, which is the washing solvent mixed waste liquid after the previous washing at this time. It is no longer used after two washings. On the one hand, it reduces the production of concentrated water, and on the other hand, it ensures the washing effect.

[0032] The emulsion phase liquid outlet module 4 includes a plurality of emulsion phase liquid outlet branch pipes 401. The emulsion phase liquid outlet branch pipes 401 correspond to the separators 302 one by one, and the emulsion phase liquid outlet branch pipes 401 are connected to the emulsion phase liquid outlet ends of the corresponding separators 302. The other ends of the emulsion phase liquid outlet branch pipes 401 are all connected in parallel to the same emulsion phase liquid outlet pipe 402, and the liquid outlet end of the emulsion phase liquid outlet pipe 402 is connected to the liquid inlet end of the fermented milk mother liquor storage tank 5. The separated emulsion phase is collected to the emulsion phase liquid outlet pipe 402 through the emulsion phase liquid outlet branch pipes 401 and finally fed into the fermented milk mother liquor storage tank 5 for collection.

[0033] The aqueous phase liquid outlet module 7 includes a plurality of waste liquid outlet branch pipes 701. The waste liquid outlet branch pipes 701 correspond to the groups of the separation modules 3 one by one, and the waste liquid outlet branch pipes 701 are connected to the aqueous phase liquid outlet ends of the separators 302 on the side close to the washing tank 1 within the corresponding groups. The other ends of the waste liquid outlet branch pipes 701 are all connected in parallel to the same waste liquid outlet pipe 702, and the liquid outlet end of the waste liquid outlet pipe 702 is connected to the waste liquid collection mechanism. It is convenient to collect the waste liquid. Since countercurrent washing is to be carried out, only the waste liquid of the nearer separator 302 within the same group is directly collected.

[0034] As a preferred Embodiment 2, liquid inlet valves 8 are provided on the liquid inlet branch pipes 301 of the separation module 3, the water inlet pipe 601 of the countercurrent module 6, and the reflux pipe 602, and liquid outlet valves 12 are provided on the milk-phase liquid outlet branch pipes 401 of the milk-phase liquid outlet module 4 and the waste liquid outlet branch pipes 701 of the aqueous-phase liquid outlet module 7. This facilitates control and monitoring.

[0035] Flow meters 11 are provided on the water inlet pipe 601 and the reflux pipe 602 of the countercurrent module 6.

[0036] As a preferred Embodiment 3, a liquid inlet valve 8, a transfer pump 9, a thermometer 10, and a flow meter 11 are successively provided on the liquid inlet pipe 2 along the transfer direction at the starting end of transfer. This facilitates control and monitoring.

[0037] The working principle of the present utility model:

[0038] The present utility model separately connects each separation module 3 including a separator 302 to the liquid inlet pipe 2, so that each separation module 3 directly washes the concentrated fermentation broth, reduces the chromaticity of the fermentation broth, ensures the drying effect, is applicable to the fermentation broth using hydrolyzed sugar as the growth carbon source, reduces the number of washing times, improves the washing efficiency, and at the same time cooperates with the countercurrent module 6 to divide adjacent separation modules 3 into a group for countercurrent washing, reducing the generation of concentrated water and the consumption of washing water, being environmentally friendly and having a good washing effect.

Claims

1. A system for a new washing and concentrating operation mode of fermentation broth, comprising a washing tank (1) internally storing concentrated fermented milk, characterized in that, The discharge end of the washing tank (1) is provided with a liquid inlet pipe (2), and a number of separation modules (3) are connected in parallel on the liquid inlet pipe (2). The milk-phase liquid outlet end of each separation module (3) is connected to the fermented milk storage tank (5) through an aqueous-phase liquid outlet module (7). Two adjacent separation modules (3) are grouped together, and the separation modules (3) in the same group are connected through a countercurrent module (6) to form a series washing. The aqueous-phase liquid outlet end of the separation module (3) in each group close to the washing tank (1) is connected to the waste liquid collection mechanism through the aqueous-phase liquid outlet module (7).

2. The system for the new washing and concentration operation mode of the fermentation broth according to claim 1, wherein The number of the separation modules (3) is an even number.

3. A system for a new washing and concentration operation mode of fermentation broth according to claim 2, characterized in that, Each separation module (3) includes a liquid inlet branch pipe (301) connected to the liquid inlet pipe (2). The other end of the liquid inlet branch pipe (301) is provided with a separator (302), and the feed end of the separator (302) is communicated with the liquid inlet pipe (2) through the liquid inlet branch pipe (301).

4. A system for a new washing and concentration operation mode of a fermentation broth according to claim 3, characterized in that, The countercurrent module (6) includes a water inlet pipe (601) and a reflux pipe (602). Among the two separation modules (3) in the same group, the water inlet pipe (601) is connected to the liquid inlet branch pipe (301) of the separation module (3) far from the washing tank (1), and the aqueous-phase liquid outlet end of the separator (302) far from the washing tank (1) is connected to the liquid inlet branch pipe (301) of the separation module (3) close to the washing tank (1) through the reflux pipe (602).

5. A system for a new washing and concentration operation mode of a fermentation broth, according to claim 4, characterized in that, The milk-phase liquid outlet module (4) includes a number of milk-phase liquid outlet branch pipes (401). The milk-phase liquid outlet branch pipes (401) correspond to the separators (302) one by one, and the milk-phase liquid outlet branch pipes (401) are connected to the milk-phase liquid outlet ends of the corresponding separators (302). The other ends of the milk-phase liquid outlet branch pipes (401) are all connected in parallel to the same milk-phase liquid outlet pipe (402), and the liquid outlet end of the milk-phase liquid outlet pipe (402) is connected to the liquid inlet end of the fermented milk storage tank (5).

6. A system for a new washing and concentration operation mode of a fermentation broth, according to claim 5, characterized in that, The aqueous-phase liquid outlet module (7) includes a number of waste liquid outlet branch pipes (701). The waste liquid outlet branch pipes (701) correspond to the groups of separation modules (3) one by one, and the waste liquid outlet branch pipes (701) are connected to the aqueous-phase liquid outlet ends of the separators (302) in the corresponding group close to the washing tank (1). The other ends of the waste liquid outlet branch pipes (701) are all connected in parallel to the same waste liquid outlet pipe (702), and the liquid outlet end of the waste liquid outlet pipe (702) is connected to the waste liquid collection mechanism.

7. A system for a new washing and concentration operation mode of a fermentation broth, according to claim 6, characterized in that, Liquid inlet valves (8) are provided on the liquid inlet branch pipes (301) of the separation modules (3), the water inlet pipe (601) of the countercurrent module (6), and the reflux pipe (602). Liquid outlet valves (12) are provided on the milk-phase liquid outlet branch pipes (401) of the milk-phase liquid outlet module (4) and the waste liquid outlet branch pipes (701) of the aqueous-phase liquid outlet module (7).

8. A system for a new washing and concentration operation mode of fermentation broth according to claim 7, characterized in that, Flow meters (11) are provided on the water inlet pipe (601) and the reflux pipe (602) of the countercurrent module (6).

9. A system for a new washing and concentration operation mode of a fermentation broth, characterized in that, On the liquid inlet pipe (2), a liquid inlet valve (8), a transfer pump (9), a thermometer (10), and a flow meter (11) are successively arranged along the conveying direction at the starting end of the conveying.

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