Bamboo source lactic acid raw material treatment device and use method thereof

Abstract

The invention relates to the technical field of bamboo source lactic acid raw material treatment, in particular to a bamboo source lactic acid raw material treatment device and a using method thereof. The bamboo source lactic acid raw material treatment device and the use method thereof aim at solving the technical problems that in the prior art, stirring and oxygen supply functions are not achieved, so that the fermentation speed is low, feed liquid cannot be circularly heated, and the purity of obtained lactic acid is low. According to the technical scheme, the bamboo-source lactic acid raw material treatment device comprises a fermentation tank, a filter, a heater and an evaporation crystallizer, the device further comprises a feeding pump, a discharging valve, a first feeding pipe, an upper cover, a second feeding pipe, a first circulating feeding pipe, a circulating pump, a second circulating feeding pipe, a third feeding pipe, a fourth feeding pipe, a stirring mechanism, a first motor and an air supply assembly. According to the invention, the raw materials and microorganisms are fully reacted, the time required by fermentation is shortened, and the fermentation is more thorough, so that the evaporative crystallization effect is ensured, and the obtained finished product has higher purity and better quality.

Description

Technical Field

[0001] The invention relates to the technical field of lactic acid raw material processing devices, and in particular to a bamboo-source lactic acid raw material processing device and a use method thereof. Background Art

[0002] Lactic acid is a commonly used food additive. It can not only increase the acidity and flavor of food, but also improve the freshness and nutritional value of food. Lactic acid is a commonly used food additive. It can not only increase the acidity and flavor of food. The raw materials for lactic acid production are glucose or other substances rich in carbon sources. These raw materials first need to be pretreated. According to specific process requirements, other auxiliary substances such as oxidants, acid-base regulators, etc. can also be added. Next is the fermentation process. In the fermentation tank, the pretreated raw materials are inoculated with lactic acid bacteria. After a period of cultivation and fermentation, the bacteria can multiply rapidly and produce a large amount of lactic acid. The fermentation temperature, pH value, oxygen supply and other parameters need to be strictly controlled to ensure The fermentation process is efficient and stable. After the fermentation is completed, the bacteria and the fermentation liquid are first separated, and then filtered, concentrated and other treatments are performed to obtain a relatively pure lactic acid liquid. After the lactic acid liquid is obtained, it needs to be finely purified. One of the commonly used purification methods is ion exchange, which removes impurities in the lactic acid solution by resin adsorption to obtain high-purity lactic acid. In addition, distillation, crystallization and other methods can be used for purification, and finally packaging and acceptance. However, existing refining equipment generally does not have stirring and oxygen supply functions, and it is difficult for the raw materials and microorganisms to fully contact. Therefore, the fermentation speed is slow and the reaction is not thorough. In addition, during evaporation and crystallization, the feed liquid cannot be circulated for heating, and the evaporation effect is poor, and the purity of the obtained lactic acid is low. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a bamboo-derived lactic acid raw material processing device and a method for using the same, which aims to solve the technical problems that the prior art lacks stirring and oxygen supply functions, resulting in a slow fermentation speed, inability to circulate and heat the feed liquid, and the resulting lactic acid has low purity.

[0004] The technical scheme of the present invention is: a bamboo-source lactic acid raw material processing device, including a fermentation tank, a filter, a heater and an evaporation crystallizer; also including a feed pump, a discharge valve, a first feed pipe, an upper cover, a second feed pipe, a first circulation feed pipe, a circulation pump, a second circulation feed pipe, a third feed pipe, a fourth feed pipe, a stirring mechanism, a first motor and an air supply component; the left end of the filter is fixedly connected to the feed pump; the evaporation crystallizer includes a separation chamber; the upper end of the separation chamber is fixedly connected to an evaporation chamber; the lower end of the evaporation chamber is fixedly connected to a built-in feed pipe extending into the separation chamber; the upper side of the evaporation chamber is fixedly connected to There is a filter screen; a discharge valve is installed at the lower end of the fermentation tank; a first feed pipe is installed between the discharge valve and the inlet end of the feed pump; an upper cover is fixedly connected to the upper end of the filter; a second feed pipe is installed at the outlet end of the feed pump and extends through the upper cover into the filter; a first circulation feed pipe, a circulation pump and a second circulation feed pipe are installed in sequence between the feed end of the heater and the separation chamber; a third circulation feed pipe is fixedly connected between the second circulation feed pipe and the outlet end of the filter; a fourth feed pipe is installed between the outlet end of the heater and the evaporation chamber; a stirring mechanism is rotatably connected in the fermentation tank; and an air supply assembly is installed on the lower side of the fermentation tank.

[0005] Preferably, the filter includes a filter housing and a motor mounting shaft; the motor mounting shaft is rotatably connected to the upper cover; the outer side of the motor mounting shaft is fixedly connected to an annular equidistantly distributed connecting rod; the outer side of the connecting rod is fixedly connected to a filter separation basket, and the fermentation liquid and lactic acid are separated by the filter separation basket.

[0006] Preferably, the stirring mechanism includes a stirring motor shaft; the outer side of the stirring motor shaft is fixedly connected to circular rings equidistantly distributed vertically; the outer side of the circular ring is fixedly connected to stirring blades equidistantly distributed in an annular shape, and the raw materials are dispersed by the stirring blades, so that the raw materials and microorganisms can fully contact and react.

[0007] Preferably, the gas supply assembly includes a gas dispersion disk; the lower end of the gas dispersion disk is fixedly connected to a circular support column with equidistant distribution; the support column is fixedly connected to the upper end of the bottom of the fermentation tank; the lower end of the gas dispersion disk is fixedly connected to an air inlet pipe extending outward through the fermentation tank; the upper end of the gas dispersion disk is provided with equidistantly distributed air outlet holes, and the gas dispersion disk is used to evenly disperse the air in the fermentation tank to maintain the normal growth and metabolism of the microorganisms.

[0008] Preferably, a first motor for driving a stirring mechanism is installed at the upper end of the fermentation tank, and the stirring mechanism is driven to rotate by the first motor to fully stir the materials and microorganisms, thereby ensuring the fermentation effect.

[0009] Preferably, the upper end cover of the evaporation chamber is fixedly connected with a steam outlet; and a product outlet is provided at the lower right end of the separation chamber to ensure that the steam can be discharged in time to avoid affecting the normal entry of the feed liquid.

[0010] Preferably, a steam inlet and a condensate outlet are fixedly connected to the upper and lower sides of the left end of the heater, and high-temperature steam is supplied to the heater through the steam inlet to achieve heat exchange between steam and liquid feed, ensuring that the liquid feed always maintains the temperature required for evaporation and crystallization, thereby ensuring the evaporation and crystallization effect of the liquid feed.

[0011] Preferably, a second motor for driving the motor mounting shaft is installed at the upper end of the upper cover; a feeding port is provided at the upper end of the fermentation tank, through which raw materials and microorganisms can be conveniently added into the fermentation tank.

[0012] A bamboo-derived lactic acid raw material processing device and a method for using the same, comprising the bamboo-derived lactic acid raw material processing device and a method for using the same as described above, wherein the steps are as follows:

[0013] Step 1: The raw materials and microorganisms are fed into the fermentation tank through the feed port, and the first motor is started to drive the stirring motor shaft to rotate. The ring on the outer side of the stirring motor shaft and the stirring blades rotate synchronously to fully mix the raw materials and microorganisms. At the same time, air is introduced from the air inlet pipe, sent into the gas dispersion disk, and then blown into the fermentation tank through the air outlet to convert the raw materials into lactic acid.

[0014] Step 2: Open the discharge valve and the feed pump, and the fermentation liquid is fed into the filter separation basket through the first feed pipe, the second feed pipe and the upper cover, and the second motor is turned on to drive the motor mounting shaft to rotate, and the connecting rod drives the filter separation basket to rotate synchronously, and the liquid flows out from the holes of the filter separation basket and falls into the filter housing, so that the lactic acid is separated from the fermentation liquid;

[0015] Step 3: The separated lactic acid is fed into the heater through the third feed pipe, the second circulation feed pipe, the circulation pump and the first circulation feed pipe. Steam is fed into the heater from the steam inlet to exchange heat with the lactic acid. The lactic acid is fed into the evaporation chamber through the fourth feed pipe and then enters the separation chamber along the discharge pipe. Lactic acid precipitates. As the amount of lactic acid increases, the liquid level continues to rise. Excess lactic acid returns to the heater from the second circulation feed pipe. The steam is filtered through the filter and discharged from the steam outlet. The final product flows out from the product outlet. The steam from the heater exchanges heat with the lactic acid and becomes condensed water, which flows out from the condensed water outlet.

[0016] Beneficial effects of the present invention:

[0017] 1. Through stirring and oxygen supply, the raw materials and microorganisms react fully, thereby accelerating the fermentation process, shortening the fermentation time, and making the fermentation more thorough. During evaporation, the feed liquid is heated in a cycle to keep the required temperature at all times, thereby ensuring the evaporation and crystallization effect, and the finished product has higher purity and better quality;

[0018] 2. With the rotation of the filter separation basket, lactic acid is separated from the fermentation liquid, and then the purity of lactic acid is further improved through evaporation and crystallization. The rotation of the stirring blades at different heights allows the raw materials and microorganisms to fully contact and react. The fermentation liquid is evaporated and the feed liquid is allowed to sink to the bottom through the coordinated use of the separation chamber and the evaporation chamber, thereby discharging high-purity finished lactic acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The first stereoscopic structural diagram of the bamboo-derived lactic acid raw material processing device of the present invention is shown;

[0020] Figure 2 Shown is a second three-dimensional structural schematic diagram of the bamboo-derived lactic acid raw material processing device of the present invention;

[0021] Figure 3 Shown is a schematic diagram of a cross-sectional three-dimensional structure of a fermentation tank in a bamboo-derived lactic acid raw material processing device of the present invention;

[0022] Figure 4 The diagram shows a cross-sectional three-dimensional structure diagram of a filter in the bamboo-derived lactic acid raw material processing device of the present invention;

[0023] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the stirring mechanism in the bamboo-derived lactic acid raw material processing device of the present invention;

[0024] Figure 6 Shown is a schematic diagram of the cross-sectional three-dimensional structure of the evaporation crystallizer in the bamboo-derived lactic acid raw material processing device of the present invention.

[0025] Explanation of reference numerals: 1. fermentation tank; 2. filter; 201. filter housing; 202. motor mounting shaft; 203. connecting rod; 204. filter separation basket; 3. heater; 4. evaporation crystallizer; 401. separation chamber; 402. evaporation chamber; 403. built-in feed pipe; 404. filter screen; 405. steam outlet; 406. product outlet; 5. feed pump; 6. discharge valve; 7. first feed pipe; 8. upper cover; 9. second feed pipe; 10. A circulating feed pipe; 11. a circulating pump; 12. a second circulating feed pipe; 13. a third feed pipe; 14. a fourth feed pipe; 15. a steam inlet; 16. a condensate outlet; 17. a stirring mechanism; 171. a stirring motor shaft; 172. a circular ring; 173. a stirring blade; 18. a first motor; 19. an air supply assembly; 191. a gas dispersion disk; 192. a supporting column; 193. an air inlet pipe; 194. an air outlet; 20. a second motor; 21. a feed port. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] See also Figure 1-2 The present invention provides an embodiment: a bamboo source lactic acid raw material processing device, comprising a fermentation tank 1, a filter 2, a heater 3 and an evaporation crystallizer 4; further comprising a feed pump 5, a discharge valve 6, a first feed pipe 7, an upper cover 8, a second feed pipe 9, a first circulation feed pipe 10, a circulation pump 11, a second circulation feed pipe 12, a third feed pipe 13, a fourth feed pipe 14, a stirring mechanism 17, a first motor 18 and an air supply assembly 19; the left end of the filter 2 is fixedly connected to the feed pump 5; the discharge valve 6 is installed at the lower end of the fermentation tank 1; the first feed pipe 7 is installed between the discharge valve 6 and the inlet end of the feed pump 5; the upper end of the filter 2 is fixedly connected to the upper cover 8; the outlet end of the feed pump 5 is installed with a second feed pipe extending through the upper cover 8 into the filter 2 9; a first circulating feed pipe 10, a circulating pump 11 and a second circulating feed pipe 12 are sequentially installed between the feed end of the heater 3 and the separation chamber 401; a third feeding pipe 13 is fixedly connected between the second circulating feed pipe 12 and the outlet end of the filter 2; a fourth feeding pipe 14 is installed between the outlet end of the heater 3 and the evaporation chamber 402; a stirring mechanism 17 is rotatably connected in the fermentation tank 1; an air supply assembly 19 is installed on the lower side of the fermentation tank 1; a steam inlet 15 and a condensate outlet 16 are respectively fixedly connected on the upper and lower sides of the left end of the heater 3; a second motor 20 for driving the motor mounting shaft 202 is installed on the upper end of the upper cover 8; a feeding port 21 is provided on the upper end of the fermentation tank 1; a first motor 18 for driving the stirring mechanism 17 is installed on the upper end of the fermentation tank 1.

[0028] See also Figure 3-4 In this embodiment, the gas supply assembly 19 includes a gas dispersion plate 191; the lower end of the gas dispersion plate 191 is fixedly connected to a circular equidistantly distributed support column 192; the support column 192 is fixedly connected to the upper end of the bottom of the fermenter 1; the lower end of the gas dispersion plate 191 is fixedly connected to an air inlet pipe 193 extending outward through the fermenter 1; the upper end of the gas dispersion plate 191 is provided with equidistantly distributed air outlet holes 194; the filter 2 includes a filter housing 201 and a motor mounting shaft 202; the motor mounting shaft 202 is rotatably connected to the upper cover 8; the outer side of the motor mounting shaft 202 is fixedly connected to a circular equidistantly distributed connecting rod 203; the outer side of the connecting rod 203 is fixedly connected to a filter separation basket 204.

[0029] See also Figure 5-6In this embodiment, the stirring mechanism 17 includes a stirring motor shaft 171; a circular ring 172 equidistantly distributed vertically is fixedly connected to the outside of the stirring motor shaft 171; a stirring blade 173 equidistantly distributed in an annular shape is fixedly connected to the outside of the circular ring 172; the evaporation crystallizer 4 includes a separation chamber 401; an evaporation chamber 402 is fixedly connected to the upper end of the separation chamber 401; a built-in discharge pipe 403 extending into the separation chamber 401 is fixedly connected to the lower end of the evaporation chamber 402; a filter screen 404 is fixedly connected to the upper side of the evaporation chamber 402; a steam outlet 405 is fixedly connected to the upper end cover of the evaporation chamber 402; a product outlet 406 is provided at the lower right end of the separation chamber 401.

[0030] A bamboo-derived lactic acid raw material processing device and a method for using the same, comprising a lactic acid raw material processing device as described in any one of the above, and the steps are as follows:

[0031] Step 1: The raw materials and microorganisms are fed into the fermentation tank 1 through the feed port 21, and the first motor 18 is started to drive the stirring motor shaft 171 to rotate. The ring 172 and the stirring blade 173 on the outer side of the stirring motor shaft 171 rotate synchronously to fully mix the raw materials and microorganisms. At the same time, air is introduced from the air inlet pipe 193, and the air is fed into the gas dispersion disk 191, and then blown into the fermentation tank 1 through the air outlet 194 to convert the raw materials into lactic acid.

[0032] Step 2: Open the discharge valve 6 and the feed pump 5, and the fermentation liquid is fed into the filter separation basket 204 through the first feed pipe 7, the second feed pipe 9 and the upper cover 8, and the second motor 20 is turned on to drive the motor mounting shaft 202 to rotate, and the connecting rod 203 drives the filter separation basket 204 to rotate synchronously, and the liquid flows out from the holes of the filter separation basket 204 and falls into the filter housing 201, so that the lactic acid is separated from the fermentation liquid;

[0033] Step 3: The separated lactic acid is fed into the heater 3 through the third feed pipe 13, the second circulation feed pipe 12, the circulation pump 11 and the first circulation feed pipe 10. Steam is fed into the heater 3 from the steam inlet 15 to exchange heat with the lactic acid. The lactic acid is fed into the evaporation chamber 402 through the fourth feed pipe 14, and then enters the separation chamber 401 along the discharge pipe 403. Lactic acid precipitates. As the amount of lactic acid increases, the liquid level continues to rise. Excess lactic acid returns to the heater 3 from the second circulation feed pipe 12. The steam is filtered through the filter 404 and discharged from the steam outlet 405. The final product flows out from the product outlet 406. The steam from the heater 3 exchanges heat with the lactic acid and becomes condensed water, which flows out from the condensed water outlet 16.

[0034] Through the above steps, the raw materials and microorganisms are fully reacted by stirring and supplying oxygen, thereby accelerating the fermentation process, shortening the time required for fermentation, and making the fermentation more thorough. During evaporation, the feed liquid is kept at the required temperature by circulating heating the feed liquid, thereby ensuring the evaporation and crystallization effect, and the obtained finished product has higher purity and better quality.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A bamboo-derived lactic acid raw material processing device, comprising a fermentation tank (1), a filter (2), a heater (3) and an evaporation crystallizer (4); characterized in that: The device also comprises a feed pump (5), a discharge valve (6), a first feed pipe (7), an upper cover (8), a second feed pipe (9), a first circulating feed pipe (10), a circulating pump (11), a second circulating feed pipe (12), a third feed pipe (13), a fourth feed pipe (14), a stirring mechanism (17), a first motor (18) and an air supply assembly (19); the left end of the filter (2) is fixedly connected to the feed pump (5); the evaporation crystallizer (4) comprises a separation chamber (401); the upper end of the separation chamber (401) is fixedly connected to an evaporation chamber (402); the lower end of the evaporation chamber (402) is fixedly connected to a built-in discharge pipe (403) extending into the separation chamber (401); the upper side of the evaporation chamber (402) is fixedly connected to a filter screen (404); the lower end of the fermentation tank (1) is provided with a discharge valve. (6); a first feed pipe (7) is installed between the discharge valve (6) and the inlet end of the feed pump (5); an upper cover (8) is fixedly connected to the upper end of the filter (2); a second feed pipe (9) is installed at the outlet end of the feed pump (5) and passes through the upper cover (8) and extends into the filter (2); a first circulation feed pipe (10), a circulation pump (11) and a second circulation feed pipe (12) are installed in sequence between the feed end of the heater (3) and the separation chamber (401); a third feed pipe (13) is fixedly connected between the second circulation feed pipe (12) and the outlet end of the filter (2); a fourth feed pipe (14) is installed between the outlet end of the heater (3) and the evaporation chamber (402); a stirring mechanism (17) is rotatably connected inside the fermentation tank (1); and an air supply assembly (19) is installed on the lower side of the fermentation tank (1).

2. The bamboo-derived lactic acid raw material processing device according to claim 1, characterized in that: The filter (2) comprises a filter housing (201) and a motor mounting shaft (202); the motor mounting shaft (202) is rotatably connected to the inside of the upper cover (8); the outside of the motor mounting shaft (202) is fixedly connected to connecting rods (203) distributed in an annular manner and at equal intervals; the outside of the connecting rods (203) is fixedly connected to a filter separation basket (204).

3. The bamboo-derived lactic acid raw material processing device according to claim 1, characterized in that: The stirring mechanism (17) comprises a stirring motor shaft (171); a circular ring (172) equidistantly distributed vertically is fixedly connected to the outside of the stirring motor shaft (171); and stirring blades (173) equidistantly distributed in an annular shape are fixedly connected to the outside of the circular ring (172).

4. The bamboo-derived lactic acid raw material processing device according to claim 1, characterized in that: The gas supply assembly (19) comprises a gas dispersion plate (191); the lower end of the gas dispersion plate (191) is fixedly connected to support columns (192) distributed in an annular manner at equal intervals; the support columns (192) are fixedly connected to the upper end of the bottom of the fermentation tank (1); the lower end of the gas dispersion plate (191) is fixedly connected to an air inlet pipe (193) extending outward through the fermentation tank (1); and the upper end of the gas dispersion plate (191) is provided with air outlet holes (194) distributed in equal intervals.

5. The bamboo-derived lactic acid raw material processing device according to claim 1, characterized in that: A first motor (18) for driving a stirring mechanism (17) is installed at the upper end of the fermentation tank (1).

6. The bamboo-derived lactic acid raw material processing device according to claim 1, characterized in that: The upper end cover of the evaporation chamber (402) is fixedly connected with a steam outlet (405); and the lower side of the right end of the separation chamber (401) is provided with a product outlet (406).

7. The bamboo-derived lactic acid raw material processing device according to claim 1, characterized in that: The upper and lower sides of the left end of the heater (3) are respectively fixedly connected with a steam inlet (15) and a condensed water outlet (16).

8. The bamboo-derived lactic acid raw material processing device according to claim 2, characterized in that: A second motor (20) for driving the motor mounting shaft (202) is installed at the upper end of the upper cover (8); and a feed port (21) is provided at the upper end of the fermentation tank (1).

9. A bamboo-derived lactic acid raw material processing device and a method of using the same, characterized in that It comprises a bamboo-derived lactic acid raw material processing device and a method for using the same according to any one of claims 1 to 8, wherein the steps are as follows: Step 1: raw materials and microorganisms are fed into the fermentation tank (1) through the feed port (21), the first motor (18) is started to drive the stirring motor shaft (171) to rotate, and the ring (172) and stirring blades (173) outside the stirring motor shaft (171) rotate synchronously to fully mix the raw materials and microorganisms. At the same time, air is introduced from the air inlet pipe (193), fed into the gas dispersion disk (191), and then blown into the fermentation tank (1) through the air outlet (194), thereby converting the raw materials into lactic acid; Step 2: Open the discharge valve (6) and the feed pump (5), and the fermentation liquid is fed into the filter separation basket (204) through the first feed pipe (7), the second feed pipe (9) and the upper cover (8), and the second motor (20) is turned on to drive the motor mounting shaft (202) to rotate, and the connecting rod (203) drives the filter separation basket (204) to rotate synchronously, and the liquid flows out from the holes of the filter separation basket (204) and falls into the filter housing (201), thereby separating the lactic acid from the fermentation liquid; Step 3: The separated lactic acid is fed into the heater (3) through the third feed pipe (13), the second circulation feed pipe (12), the circulation pump (11) and the first circulation feed pipe (10). Steam is fed into the heater (3) from the steam inlet (15) to exchange heat with the lactic acid. The lactic acid is fed into the evaporation chamber (402) through the fourth feed pipe (14) and then enters the separation chamber (401) along the discharge pipe (403). The lactic acid precipitates. As the amount of lactic acid increases, the liquid level continues to rise. Excess lactic acid returns to the heater (3) from the second circulation feed pipe (12). The steam is filtered through the filter (404) and discharged from the steam outlet (405). The final product flows out from the product outlet (406). The steam in the heater (3) exchanges heat with the lactic acid and becomes condensed water, which flows out from the condensed water outlet (16).

Images