Continuous tagatose extraction system

Abstract

The utility model belongs to the technical field of tagatose extraction, and discloses a tagatose continuous extraction system which comprises a control module, and a pretreatment module, a continuous reaction module and a separation and purification module which are connected with the control module, the pretreatment module is used for adjusting fermentation parameters of the microbial fermentation liquid and introducing the microbial fermentation liquid after the fermentation parameters are adjusted into the continuous reaction module; the continuous reaction module is used for carrying out contact reaction on the microbial fermentation liquid with the adjusted fermentation parameters and a reaction medium, and introducing the microbial fermentation liquid subjected to the contact reaction into the separation and purification module; the separation and purification module is used for separating and extracting tagatose in the microbial fermentation liquid after the contact reaction, and sending various parameter information when the tagatose is separated and extracted to the control module; the control module is used for automatically monitoring and adjusting various parameter information when the tagatose is extracted by the tagatose continuous extraction system. The system is provided with the continuous reaction module and the separation and purification module, so that the extraction efficiency of tagatose is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tagatose extraction, and in particular relates to a tagatose continuous extraction system. Background Art

[0002] Tagatose not only has a sweetness close to that of sucrose, but also has the characteristics of low energy and little impact on blood sugar, making it an ideal alternative sweetener for diabetics and those who pursue a healthy lifestyle. As the concept of healthy eating becomes more popular, the market demand for tagatose as a food additive is also increasing year by year.

[0003] Currently, the commercial production of tagatose is mainly through the conversion enzyme method or chemical synthesis method. However, these methods are often accompanied by problems such as high energy consumption and low extraction efficiency during the tagatose extraction process, which not only increases the production cost, but also does not conform to the green, energy-saving and efficient production trend of modern industry.

[0004] Therefore, how to improve the extraction efficiency of tagatose is a technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to solve the problem of low efficiency of existing tagatose extraction, the utility model provides a tagatose continuous extraction system, which includes a control module and a pretreatment module, a continuous reaction module and a separation and purification module connected to the control module;

[0006] The pretreatment module is connected to the continuous reaction module, and the pretreatment module is used to adjust the fermentation parameters of the microbial fermentation liquid, and pass the microbial fermentation liquid after the fermentation parameters are adjusted to the continuous reaction module;

[0007] The continuous reaction module is connected to the separation and purification module, and the continuous reaction module is used to contact and react the microbial fermentation liquid after adjusting the fermentation parameters with the reaction medium, and pass the microbial fermentation liquid after the contact reaction into the separation and purification module;

[0008] The separation and purification module is connected to the control module, and is used to separate and extract tagatose from the microbial fermentation liquid after the contact reaction, and send various parameter information when separating and extracting tagatose to the control module;

[0009] The control module automatically monitors and adjusts various parameter information when the tagatose continuous extraction system extracts tagatose.

[0010] Further, the pretreatment module includes a regulating tank, a nutrient balancer, a defoamer and a filter connected in sequence;

[0011] The regulating tank is used to regulate the pH value of the microbial fermentation liquid, and pass the microbial fermentation liquid after the pH value is adjusted into the nutrient balancer;

[0012] The nutrient balancer is used to inject the nutrient solution into the microbial fermentation liquid, and pass the microbial fermentation liquid injected with the nutrient solution into the defoamer;

[0013] The defoamer is used to eliminate bubbles generated in the microbial fermentation liquid after the nutrient solution is injected, and pass the microbial fermentation liquid after the bubbles are eliminated into the filter;

[0014] The filter is used to filter impurities generated in the microbial fermentation liquid after the bubbles are eliminated.

[0015] Further, the continuous reaction module includes a first reaction chamber, a second reaction chamber and a third reaction chamber connected in sequence;

[0016] The first reaction chamber is connected to the filter, and the first reaction chamber is used to dynamically stir the microbial fermentation liquid after filtering impurities, and pass the dynamically stirred microbial fermentation liquid into the second reaction chamber;

[0017] The second reaction chamber is used to inject nutrients into the stirred microbial fermentation liquid, and pass the microbial fermentation liquid injected with nutrients into the third reaction chamber;

[0018] The third reaction chamber is used to separate tagatose solution and waste liquid in the microbial fermentation liquid after the nutrient substances are injected.

[0019] Furthermore, the continuous reaction module also includes a temperature controller, and the temperature controller is used to adjust the temperature in the first reaction chamber, the second reaction chamber, and the third reaction chamber.

[0020] Furthermore, the centrifugal separator is used to separate free microbial cells and cell fragments in the tagatose solution, and the separated tagatose solution is passed into the microfilter;

[0021] The microfilter is used to remove residual substances in the separated tagatose solution, and the tagatose solution after the residual substances are removed is passed into the ultrafilter;

[0022] The ultrafilter is used to concentrate the tagatose solution after the residual substances are removed.

[0023] Furthermore, the separation and purification module includes a nanofilter, an activated carbon processor, an ion exchanger and an evaporation concentrator;

[0024] The nanofilter is used to purify the concentrated tagatose solution, and the purified tagatose solution is passed into the activated carbon processor;

[0025] The activated carbon processor is used to remove colored substances and organic impurities from the purified tagatose solution, and pass the tagatose solution after the colored substances and organic impurities are removed into the ion exchanger;

[0026] The ion exchanger is used to filter out ionic impurities in the tagatose solution after the colored substances and organic impurities are removed, and the tagatose solution after the ionic impurities are filtered out is passed into the evaporation concentrator;

[0027] The evaporation concentrator is used to remove water from the tagatose solution after filtering out ionic impurities.

[0028] Furthermore, the separation and purification module also includes a crystallizer and a dryer;

[0029] The crystallizer is used to cool and crystallize tagatose after water removal, and pass the cooled and crystallized tagatose into a dryer;

[0030] The dryer is used to remove crystal water from tagatose after cooling and crystallization to obtain powdered tagatose.

[0031] Furthermore, the system also includes an energy recovery module, which is connected to the control module and is used to recover waste heat generated during the fermentation of the microbial fermentation liquid and process it into preheating raw materials.

[0032] Further, the energy recovery module includes a heat exchanger and a waste heat boiler;

[0033] The heat exchanger is connected to the waste heat boiler, and the heat exchanger is used to pass the waste heat generated during the fermentation process of the microbial fermentation liquid into the waste heat boiler;

[0034] The waste heat boiler converts waste heat generated during the fermentation of the microbial fermentation liquid into steam.

[0035] Further, the control module includes a data collector, a sensor, a programmable logic controller and a communication interface;

[0036] The data collector is used to collect various parameter information during the fermentation process of the microbial fermentation liquid in real time, and send the collected various parameter information during the fermentation process of the microbial fermentation liquid to the sensor;

[0037] The sensor is used to monitor various parameter information of the received microbial fermentation liquid in the fermentation process in real time, and send the monitored various parameter information of the microbial fermentation liquid in the fermentation process to the programmable logic controller;

[0038] The programmable logic controller adjusts the opening of the valve in each reactor according to the monitored parameter information during the fermentation process of the microbial fermentation liquid;

[0039] The communication interface is respectively connected to the data collector, the sensor and the programmable logic controller for communication, and the communication interface is used for synchronously transmitting various parameter information in the data collector, the sensor and the programmable logic controller.

[0040] Compared with the prior art, the tagatose continuous extraction system provided by the utility model comprises a continuous reaction module and a separation and purification module. The continuous reaction module is used to contact and react the microbial fermentation liquid after adjusting the fermentation parameters with the reaction medium, and pass the microbial fermentation liquid after the contact reaction into the separation and purification module; the separation and purification module is used to separate and extract tagatose in the microbial fermentation liquid after the contact reaction. The continuous reaction module and the separation and purification module provided in the system of the utility model improve the extraction efficiency of tagatose. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Among them, 10 is a pretreatment module, 11 is a regulating tank, 12 is a nutrient balancer, 13 is a defoamer, 14 is a filter, 20 is a continuous reaction module, 21 is a first reaction chamber, 22 is a second reaction chamber, 23 is a third reaction chamber, 30 is a separation and purification module, 31 is a centrifugal separator, 32 is a microfilter, 33 is an ultrafilter, 34 is a nanofilter, 35 is an activated carbon processor, 36 is an ion exchanger, 37 is an evaporation concentrator, 38 is a crystallizer, 39 is a dryer, 40 is a control module, 41 is a data acquisition device, 42 is a sensor, 43 is a programmable logic controller, and 44 is a communication interface.

[0042] Figure 1 The utility model provides a framework structure schematic diagram of a tagatose continuous extraction system;

[0043] Figure 2 A structural schematic diagram of a preprocessing module is provided for the utility model;

[0044] Figure 3 A structural schematic diagram of a continuous reaction module is provided for the utility model;

[0045] Figure 4 A structural schematic diagram of a separation and purification module is provided for the utility model;

[0046] Figure 5 The utility model provides a structural schematic diagram of a control module. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0048] In order to make the description of the disclosed content more detailed and complete, the following is an illustrative description of the implementation method and specific examples of the utility model; however, this is not the only form of implementing or using the specific examples of the utility model. The implementation method covers the features of multiple specific examples and the method steps and their sequence for constructing and operating these specific examples. However, other specific examples can also be used to achieve the same or equal functions and step sequences. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0049] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0050] In the description of the embodiments of the present invention, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, “multiple” means two or more than two, and other quantifiers are similar. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention, and the embodiments of the present invention and the features in the embodiments may be combined with each other without conflict.

[0051] To solve the above-mentioned problem of low efficiency of tagatose extraction, please refer to Figure 1 , Figure 1The utility model provides a framework structure schematic diagram of a tagatose continuous extraction system, the system comprises a control module 40 and a pretreatment module 10, a continuous reaction module 20 and a separation and purification module 30 connected to the control module 40; the pretreatment module 10 is connected to the continuous reaction module 20, the pretreatment module 10 is used to adjust the fermentation parameters of the microbial fermentation liquid, and the microbial fermentation liquid after the fermentation parameters are adjusted is passed to the continuous reaction module 20; the continuous reaction module 20 is connected to the separation and purification module 30, the continuous reaction module 20 is used to contact the microbial fermentation liquid after the fermentation parameters are adjusted with a reaction medium for reaction, and the microbial fermentation liquid after the contact reaction is passed to the separation and purification module 30; the separation and purification module 30 is connected to the control module 40, the separation and purification module 30 is used to separate and extract tagatose in the microbial fermentation liquid after the contact reaction, and send various parameter information when separating and extracting tagatose to the control module 40; the control module 40 automatically monitors and adjusts various parameter information when the tagatose continuous extraction system extracts tagatose.

[0052] Specifically, in the embodiment of the utility model, environmentally friendly microbial fermentation liquid is used as a raw material to extract tagatose. The first step of tagatose extraction is to prepare and optimize the fermentation liquid in the pretreatment module 10, culture the microorganisms, control the growth and set the initial fermentation conditions. The pretreatment module 10 is also provided with a large particle impurity filter 14, and the large particle impurity filter 14 is used to remove large particle impurities in the microbial fermentation liquid to prevent the large particle impurities in the microbial fermentation liquid from affecting the extraction efficiency of tagatose; the second step of tagatose extraction is to fully contact and react the microbial fermentation liquid after adjusting the fermentation parameters with the reaction medium in the reactor in the continuous reaction module 20. The continuous reaction module 20 is provided with a plurality of continuous reaction chambers, and each reaction chamber is equipped with an efficient mass transfer and mixer to ensure that the tagatose in the fermentation liquid can fully contact with the reaction medium, thereby effectively improving the conversion efficiency of tagatose. The third step of tagatose extraction is to extract and purify tagatose in the separation and purification module 30. The separation and purification module 30 includes high-performance centrifugation and filtration, which can first separate tagatose from the fermentation broth, and then further purify tagatose through separation and purification technology. The fourth step of tagatose extraction is to recover waste heat in the energy recovery module. The separation and purification module 30 will separate the microbial fermentation broth into tagatose solution and waste liquid. The energy recovery module can recycle the waste heat generated by the separation and purification module 30 for preheating raw materials or supporting other energy consumption links. In addition, in the embodiment of the utility model, the entire extraction process is automatically controlled by the control module 40, and the control module 40 monitors and adjusts the temperature, pH value, dissolved oxygen and other parameter information of the microbial fermentation broth and tagatose solution in real time to ensure that the fermentation of the microorganisms and the tagatose extraction are carried out under optimal conditions.

[0053] As an implementation, please refer to Figure 2 , Figure 2 The utility model provides a structural schematic diagram of a pretreatment module, wherein the pretreatment module 10 comprises a regulating tank 11, a nutrient balancer 12, a defoamer 13 and a filter 14 which are connected in sequence; the regulating tank 11 is used to regulate the pH value of the microbial fermentation liquid, and pass the microbial fermentation liquid after the pH value is adjusted into the nutrient balancer 12; the nutrient balancer 12 is used to inject the nutrient solution into the microbial fermentation liquid, and pass the microbial fermentation liquid after the nutrient solution is injected into the defoamer 13; the defoamer 13 is used to eliminate bubbles generated in the microbial fermentation liquid after the nutrient solution is injected, and pass the microbial fermentation liquid after the bubbles are eliminated into the filter 14; the filter 14 is used to filter impurities generated in the microbial fermentation liquid after the bubbles are eliminated.

[0054] Specifically, in the embodiment of the utility model, first, the microbial fermentation liquid is introduced into the regulating tank 11 to adjust the pH value for optimal tagatose extraction. For example, the pH value of the microbial fermentation liquid can be adjusted to a neutral to weakly acidic pH value; secondly, the nutrient solution is evenly mixed into the microbial fermentation liquid through the nutrient balancer 12 to ensure that the microorganisms take up nutrients in a balanced manner to maintain the stability of the fermentation process; then, the foam generated during the fermentation process of the microbial fermentation liquid is processed by the defoamer 13 to avoid affecting the subsequent process; thirdly, the impurities and suspended particles generated during the fermentation process of the microbial fermentation liquid are filtered through the filter 14; finally, the temperature of the fermentation liquid is adjusted by the temperature controller to ensure the stable existence of tagatose and create better conditions for the subsequent extraction process.

[0055] As an implementation, please refer to Figure 3 , Figure 3 The utility model provides a structural schematic diagram of a continuous reaction module, wherein the continuous reaction module 20 comprises a first reaction chamber 21, a second reaction chamber 22 and a third reaction chamber 23 which are connected in sequence; the first reaction chamber 21 is connected to the filter 14, and the first reaction chamber 21 is used to dynamically stir the microbial fermentation liquid after filtering impurities, and pass the microbial fermentation liquid after dynamic stirring into the second reaction chamber 22; the second reaction chamber 22 is used to inject nutrients into the stirred microbial fermentation liquid, and pass the microbial fermentation liquid after the nutrients are injected into the third reaction chamber 23; the third reaction chamber 23 is used to separate the tagatose solution and the waste liquid in the microbial fermentation liquid after the nutrients are injected.

[0056] Specifically, in the embodiment of the utility model, first, the filtered microbial fermentation liquid is introduced into the first reaction chamber for preliminary reaction, and the microbial fermentation liquid is dynamically stirred to ensure uniform mixing of the microbial fermentation liquid; secondly, nutrients are gradually injected into the second reaction chamber 22 along the flow line of the reactor to support the growth of microorganisms and the continuous synthesis of tagatose; finally, the tagatose solution and waste liquid in the microbial fermentation liquid are separated in the third reaction chamber 23 to facilitate further purification and environmentally friendly treatment of tagatose.

[0057] It should be noted that the continuous reaction module 20 is connected to the control module 40, and the pH control unit in the control module 40 monitors and automatically adjusts the pH value in each reaction chamber to achieve continuous reaction. In addition, the control module 40 also monitors the key parameters in each reaction chamber in real time, adjusts the reaction conditions in real time, and ensures the continuous extraction efficiency and quality of tagatose.

[0058] As an embodiment, the continuous reaction module 20 further includes a temperature controller, which is used to adjust the temperature in the first reaction chamber 21, the second reaction chamber 22 and the third reaction chamber 23 to ensure that the temperature of each reaction chamber is maintained within the optimal range for producing tagatose.

[0059] As an implementation, please refer to Figure 4 , Figure 4 The utility model provides a structural schematic diagram of a separation and purification module, wherein the centrifugal separator 31 is used to separate free microbial cells and cell fragments in a tagatose solution, and pass the separated tagatose solution into the microfilter 32; the microfilter 32 is used to remove residual substances in the separated tagatose solution, and pass the tagatose solution after the residual substances are removed into the ultrafilter 33; the ultrafilter 33 is used to concentrate the tagatose solution after the residual substances are removed. In the embodiment of the utility model, tagatose can be separated from the microbial fermentation broth by adsorption resin technology or membrane separation technology, or by other technologies, and the utility model embodiment does not make further restrictions here.

[0060] As an embodiment, the separation and purification module 30 includes a nanofilter 34, an activated carbon processor 35, an ion exchanger 36 and an evaporation concentrator 37; the nanofilter 34 is used to purify the concentrated tagatose solution, and pass the purified tagatose solution into the activated carbon processor 35; the activated carbon processor 35 is used to remove colored substances and organic impurities in the purified tagatose solution, and pass the tagatose solution after the colored substances and organic impurities are removed into the ion exchanger 36; the ion exchanger 36 is used to filter out ionic impurities in the tagatose solution after the colored substances and organic impurities are removed, and pass the tagatose solution after the ionic impurities are filtered out into the evaporation concentrator 37; the evaporation concentrator 37 is used to remove water from the tagatose solution after the ionic impurities are filtered out, so as to obtain a high-concentration tagatose solution.

[0061] As an embodiment, the separation and purification module 30 further includes a crystallizer 38 and a dryer 39; the crystallizer 38 is used to cool and crystallize the tagatose after water removal, and pass the tagatose after cooling and crystallization into the dryer 39; the dryer 39 is used to remove the crystal water in the tagatose after cooling and crystallization to obtain powdered tagatose. In the embodiment of the utility model, the separation and purification module 30 integrates the separation and purification of tagatose from the microbial fermentation broth, which can realize the efficient extraction of tagatose, so as to be suitable for large-scale industrial production, and can also ensure the purity and quality of tagatose, and meet the strict requirements for sweeteners in the food industry.

[0062] As an embodiment, the system further includes an energy recovery module, which is connected to the control module, and the energy recovery module is used to recover the waste heat generated during the fermentation of the microbial fermentation liquid and use it to preheat the raw materials. In the embodiment of the utility model, the system is also provided with an energy recovery module, which can recover the waste heat generated during the separation and purification process to preheat the raw materials or support other energy-consuming links.

[0063] As an embodiment, the energy recovery module includes a heat exchanger and a waste heat boiler; the heat exchanger and the waste heat boiler are connected, and the heat exchanger is used to pass the waste heat generated during the fermentation process of the microbial fermentation liquid into the waste heat boiler; the waste heat boiler converts the waste heat generated during the fermentation process of the microbial fermentation liquid into steam.

[0064] Specifically, in the embodiment of the utility model, the waste heat generated during the separation and evaporation process of the separation and purification module 30 can be introduced into other processes that require heating through a heat exchanger. For example, the waste heat can be introduced into the preheating raw materials or reaction materials to reduce the demand for new energy; the waste heat is then converted into steam through a waste heat boiler to operate the steam turbine for power generation, and the generated electricity can also be supplied to the factory for use to achieve self-sufficiency or reduce the demand for power from the power grid; the steam generated during the evaporation and drying process can also be introduced into the steam turbine through a special pipeline. While the steam is converted into mechanical energy or electrical energy, the low-temperature steam generated can also be used for heating or preheating processes. The incompletely utilized steam is condensed into water in the condenser, and the condensed water can be used as a cooling medium for heat exchange or recycled as process water to reduce the consumption of water resources. In addition, the energy recovery module is connected to the control module 40, and the control module 40 can detect the energy utilization rate of the entire process in real time, optimize the operating parameters through the automatic control system, and improve the energy recovery efficiency of the entire system. The energy recovery module added in the utility model can not only reduce energy consumption in the tagatose separation and purification process, but also reduce environmental emissions, thereby improving the economy and sustainability of the entire production process.

[0065] As an implementation, please refer to Figure 5 , Figure 5 The utility model provides a structural schematic diagram of a control module, wherein the control module 40 includes a data collector 41, a sensor 42, a programmable logic controller 43 and a communication interface 44; the data collector 41 is used to collect various parameter information in the fermentation process of the microbial fermentation liquid in real time, and send the collected various parameter information in the fermentation process of the microbial fermentation liquid to the sensor 42; the sensor 42 is used to monitor the received various parameter information in the fermentation process of the microbial fermentation liquid in real time, and send the monitored various parameter information in the fermentation process of the microbial fermentation liquid to the programmable logic controller 43; the programmable logic controller 43 adjusts the opening of the valve in each reactor according to the monitored various parameter information in the fermentation process of the microbial fermentation liquid; the communication interface 44 is respectively connected to the data collector 41, the sensor 42 and the programmable logic controller 43, and the communication interface 44 is used to synchronously transmit the various parameter information in the data collector 41, the sensor 42 and the programmable logic controller 43. Among them, the various parameter information in the fermentation process of the microbial fermentation liquid includes key detection information such as temperature, pressure, and flow.

[0066] In the embodiment of the utility model, the control module 40 also includes a touchable human-machine interface, through which the operator can monitor the state of the microbial fermentation broth in real time, and manually adjust the control parameters or perform fault diagnosis on the system. In addition, the control module 40 also includes a database server, and all operations and sensor 42 data are recorded in the database server, which is convenient for generating production reports, performing data analysis and recording the history of tagatose process preparation, and using the collected historical data and operation logs to evaluate and optimize system performance, regularly check the integrity of the hardware and update and maintain the software, and the tagatose continuous extraction system can also realize safety protection and alarm logic. When an abnormality is detected, an alarm is triggered, and the operation is automatically transferred to a safe state, and the operator is notified to intervene when necessary. The control module in the embodiment of the utility model can ensure that the separation and purification process of tagatose is carried out under optimal operating conditions, while ensuring product quality and improving production efficiency and safety. In addition, it allows timely response to deviations in the tagatose preparation process, thereby saving resources and reducing operating costs.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A tagatose continuous extraction system, characterized in that: It includes a control module and a pretreatment module, a continuous reaction module and a separation and purification module connected to the control module; The pretreatment module is connected to the continuous reaction module, and the pretreatment module is used to adjust the fermentation parameters of the microbial fermentation liquid, and pass the microbial fermentation liquid after the fermentation parameters are adjusted to the continuous reaction module; The continuous reaction module is connected to the separation and purification module, and the continuous reaction module is used to contact and react the microbial fermentation liquid after adjusting the fermentation parameters with the reaction medium, and pass the microbial fermentation liquid after the contact reaction into the separation and purification module; The separation and purification module is connected to the control module, and is used to separate and extract tagatose from the microbial fermentation liquid after the contact reaction, and send various parameter information when separating and extracting tagatose to the control module; The control module automatically monitors and adjusts various parameter information when the tagatose continuous extraction system extracts tagatose.

2. The tagatose continuous extraction system according to claim 1, characterized in that: The pretreatment module includes a regulating tank, a nutrient balancer, a defoamer and a filter connected in sequence; The regulating tank is used to regulate the pH value of the microbial fermentation liquid, and pass the microbial fermentation liquid after the pH value is adjusted into the nutrient balancer; The nutrient balancer is used to inject the nutrient solution into the microbial fermentation liquid, and pass the microbial fermentation liquid injected with the nutrient solution into the defoamer; The defoamer is used to eliminate bubbles generated in the microbial fermentation liquid after the nutrient solution is injected, and pass the microbial fermentation liquid after the bubbles are eliminated into the filter; The filter is used to filter impurities generated in the microbial fermentation liquid after the bubbles are eliminated.

3. The tagatose continuous extraction system according to claim 2, characterized in that: The continuous reaction module comprises a first reaction chamber, a second reaction chamber and a third reaction chamber connected in sequence; The first reaction chamber is connected to the filter, and the first reaction chamber is used to dynamically stir the microbial fermentation liquid after filtering impurities, and pass the dynamically stirred microbial fermentation liquid into the second reaction chamber; The second reaction chamber is used to inject nutrients into the stirred microbial fermentation liquid, and pass the microbial fermentation liquid injected with nutrients into the third reaction chamber; The third reaction chamber is used to separate tagatose solution and waste liquid in the microbial fermentation liquid after the nutrient substances are injected.

4. The tagatose continuous extraction system according to claim 3, characterized in that: The continuous reaction module further includes a temperature controller, which is used to adjust the temperatures in the first reaction chamber, the second reaction chamber, and the third reaction chamber.

5. The tagatose continuous extraction system according to claim 4, characterized in that: The separation and purification module includes a centrifugal separator, a microfilter and an ultrafilter; The centrifugal separator is used to separate free microbial cells and cell fragments in the tagatose solution, and pass the separated tagatose solution into the microfilter; The microfilter is used to remove residual substances in the separated tagatose solution, and the tagatose solution after the residual substances are removed is passed into the ultrafilter; The ultrafilter is used to concentrate the tagatose solution after the residual substances are removed.

6. The tagatose continuous extraction system according to claim 5, characterized in that: The separation and purification module includes a nanofilter, an activated carbon processor, an ion exchanger and an evaporation concentrator; The nanofilter is used to purify the concentrated tagatose solution, and the purified tagatose solution is passed into the activated carbon processor; The activated carbon processor is used to remove colored substances and organic impurities from the purified tagatose solution, and pass the tagatose solution after the colored substances and organic impurities are removed into the ion exchanger; The ion exchanger is used to filter out ionic impurities in the tagatose solution after the colored substances and organic impurities are removed, and the tagatose solution after the ionic impurities are filtered out is passed into the evaporation concentrator; The evaporation concentrator is used to remove water from the tagatose solution after filtering out ionic impurities.

7. The tagatose continuous extraction system according to claim 6, characterized in that: The separation and purification module also includes a crystallizer and a dryer; The crystallizer is used to cool and crystallize tagatose after water removal, and pass the cooled and crystallized tagatose into a dryer; The dryer is used to remove crystal water from tagatose after cooling and crystallization to obtain powdered tagatose.

8. The tagatose continuous extraction system according to claim 7, characterized in that: The system further comprises an energy recovery module, which is connected to the control module and is used for recovering waste heat generated during the fermentation of the microbial fermentation liquid and treating it as a preheating raw material.

9. The tagatose continuous extraction system according to claim 8, characterized in that: The energy recovery module includes a heat exchanger and a waste heat boiler; The heat exchanger is connected to the waste heat boiler, and the heat exchanger is used to pass the waste heat generated during the fermentation process of the microbial fermentation liquid into the waste heat boiler; The waste heat boiler converts waste heat generated during the fermentation of the microbial fermentation liquid into steam.

10. The tagatose continuous extraction system according to claim 9, characterized in that: The control module includes a data collector, a sensor, a programmable logic controller and a communication interface; The data collector is used to collect various parameter information during the fermentation process of the microbial fermentation liquid in real time, and send the collected various parameter information during the fermentation process of the microbial fermentation liquid to the sensor; The sensor is used to monitor various parameter information of the received microbial fermentation liquid in the fermentation process in real time, and send the monitored various parameter information of the microbial fermentation liquid in the fermentation process to the programmable logic controller; The programmable logic controller adjusts the opening of the valve in each reactor according to the monitored parameter information during the fermentation process of the microbial fermentation liquid; The communication interface is respectively connected to the data collector, the sensor and the programmable logic controller for communication, and the communication interface is used for synchronously transmitting various parameter information in the data collector, the sensor and the programmable logic controller.

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