Device for removing toxins in corn protein

Abstract

The utility model discloses a device for removing toxins in corn protein. The device comprises centrifugal extraction equipment and solvent recovery equipment, the centrifugal extraction equipment comprises a first-stage centrifugal machine, a second-stage centrifugal machine and a third-stage centrifugal machine which are sequentially communicated, the first-stage centrifugal machine is communicated with a toxin-containing protein storage tank, the first-stage centrifugal machine, the second-stage centrifugal machine and the third-stage centrifugal machine are respectively communicated with an organic solvent storage tank, and a protein phase outlet of the third-stage centrifugal machine is communicated with a detoxified protein storage The solvent recovery equipment comprises an evaporator, a rectifying tower and a condenser which are communicated in sequence; a liquid inlet of the evaporator is respectively communicated with light phase outlets of the first-stage centrifugal machine, the second-stage centrifugal machine and the third-stage centrifugal machine; a liquid outlet of the condenser is communicated with the organic solvent storage tank; and a liquid outlet of the rectifying tower is communicated with a toxin-containing solution temporary storage tank. The device not only can effectively remove toxins in protein, but also can recycle an organic solvent in the treatment process, so that the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of protein preparation, in particular to a device for removing toxins from corn protein. Background Art

[0002] Corn steep liquor contains a large amount of vomitoxin. Therefore, corn protein made from corn steep liquor contains a certain amount of vomitoxin. Vomitoxin has a great impact on the immune system and is harmful to humans and animals. It is also quite common for vomitoxin to contaminate feed and grains. Therefore, it is necessary to completely separate the toxin from the protein to prepare corn protein with high safety performance.

[0003] At present, when removing toxins from zein, a large amount of organic solvents need to be used to dissolve and extract the toxins in the protein, and then the toxin phase and the protein phase are separated under certain conditions. Although the above method can remove toxins in the protein to a certain extent, the toxin removal effect is not very good, and the amount of organic solvent used in the removal process is large, and the amount of waste liquid generated is large. Therefore, how to effectively remove toxins from zein and recycle organic solvents is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of the problems pointed out in the background technology, the utility model provides a device for removing toxins from corn protein, which can not only effectively remove toxins from the protein, but also recycle organic solvents in the treatment process, thereby reducing energy consumption.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A device for removing toxins from corn protein, comprising a centrifugal extraction device and a solvent recovery device;

[0007] The centrifugal extraction equipment comprises a primary centrifuge, a secondary centrifuge, and a tertiary centrifuge which are sequentially connected, wherein the primary centrifuge is connected to a toxin-containing protein storage tank, the primary centrifuge, the secondary centrifuge, and the tertiary centrifuge are respectively connected to an organic solvent storage tank, and the protein phase outlet of the tertiary centrifuge is connected to a detoxified protein storage tank;

[0008] The solvent recovery equipment includes an evaporator, a distillation tower, and a condenser which are connected in sequence; the liquid inlet of the evaporator is respectively connected to the light phase outlets of the first-stage centrifuge, the second-stage centrifuge, and the third-stage centrifuge; the liquid outlet of the condenser is connected to the organic solvent storage tank; the liquid discharge port of the distillation tower is connected to the temporary storage tank for the toxin-containing solution.

[0009] As an improved technical solution, the protein phase outlet of the first-stage centrifuge is connected to the liquid inlet of the second-stage centrifuge, and the protein phase outlet of the second-stage centrifuge is connected to the liquid inlet of the tertiary centrifuge.

[0010] As an improved technical solution, it includes at least one of the following features:

[0011] A feed pump and a feed valve are respectively provided on the connecting pipes between the organic solvent storage tank and the first-stage centrifuge, the second-stage centrifuge, and the third-stage centrifuge, and on the connecting pipe between the toxin protein storage tank and the first-stage centrifuge;

[0012] Bag filters are provided on the connecting pipes between the organic solvent storage tank and the first-stage centrifuge, the second-stage centrifuge and the third-stage centrifuge, and on the connecting pipe between the toxin protein storage tank and the first-stage centrifuge.

[0013] As an improved technical solution, the toxin-containing protein storage tank, the detoxified protein storage tank and the organic solvent storage tank are all provided with a stirrer.

[0014] As an improved technical solution, a distillation circulation pump and a discharge density meter are respectively provided on the discharge pipe of the distillation tower.

[0015] As an improved technical solution, the discharge pipe is connected to the circulation pipe and the liquid outlet pipe respectively, the other end of the circulation pipe is connected to the liquid inlet of the distillation tower, and the other end of the liquid outlet pipe is connected to the toxin-containing solution temporary storage tank; the circulation pipe and the liquid outlet pipe are respectively provided with a distillation regulating valve and a discharge switch valve, and the discharge density meter is respectively interlocked with the distillation regulating valve and the discharge switch valve.

[0016] As an improved technical solution, a precooler is further provided on the connecting pipe between the distillation tower and the condenser.

[0017] As an improved technical solution, a spiral coil is provided in the condenser, one end of the spiral coil is connected to the condensate water pipeline, and the other end of the spiral coil is connected to the heat exchange medium inlet of the precooler.

[0018] As an improved technical solution, the condenser is connected to the organic solvent storage tank through a solvent recovery pipeline, and the solvent recovery pipeline is provided with a reflux circulation pump, a discharge flow meter and a solvent switch valve.

[0019] As an improved technical solution, the solvent recovery pipeline is also connected to the liquid inlet of the distillation tower through a reflux pipeline; a reflux density meter and a reflux regulating valve are provided on the reflux pipeline, and the reflux density meter is respectively interlocked with the discharge flow meter, the solvent switch valve, and the reflux regulating valve.

[0020] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] The utility model provides a device for removing toxins from corn protein. By arranging a primary centrifuge, a secondary centrifuge and a tertiary centrifuge which are sequentially connected in series, multi-stage centrifugal extraction is performed on a toxin-containing protein liquid, to effectively remove the toxins in the protein and improve the safety performance of the protein.

[0022] The light phase outlets of the first-stage centrifuge, the second-stage centrifuge and the third-stage centrifuge of the device are also connected to the evaporator, the distillation tower and the condenser in sequence. The condenser is connected to the organic solvent storage tank. The evaporator preheats the toxin-containing solution, and the distillation tower distills the organic solvent in the toxin-containing solution. The organic solvent is then condensed by the condenser and re-enters the organic solvent storage tank for utilization, thereby greatly reducing energy consumption.

[0023] The discharge pipe of the distillation tower of the device is respectively provided with a distillation circulation pump and a discharge density meter; the discharge pipe is respectively connected to the circulation pipe and the discharge pipe, the other end of the circulation pipe is connected to the liquid inlet of the distillation tower, and the other end of the discharge pipe is connected to the temporary storage tank of the toxin-containing solution; the circulation pipe and the discharge pipe are respectively provided with a distillation regulating valve and a discharge switch valve, and the discharge density meter is respectively interlocked with the distillation regulating valve and the discharge switch valve. The above arrangement can effectively separate the organic solvent in the toxin-containing liquid and improve the distillation effect.

[0024] A precooler is also provided on the connecting pipe between the distillation tower and the condenser of the device. A spiral coil is provided in the condenser. One end of the spiral coil is connected to the condensation water pipe, and the other end of the spiral coil is connected to the heat exchange medium inlet of the precooler. In the above arrangement, the gas coming out of the distillation tower is precooled by the precooler and then condensed by the condenser, which greatly improves the recovery rate of the organic solvent. Moreover, the heat exchange medium of the condenser enters the precooler for reuse, further reducing energy consumption.

[0025] The condenser of the device is provided with a reflux circulation pump, a discharge flow meter and a solvent switch valve through a solvent recovery pipeline; the solvent recovery pipeline is also connected to the liquid inlet of the distillation tower through a reflux pipeline; a reflux density meter and a reflux regulating valve are provided on the reflux pipeline, and the reflux density meter is interlocked with the discharge flow meter, the solvent switch valve and the reflux regulating valve respectively. In the above settings, the density of the liquid coming out of the condenser is monitored in real time by the reflux density meter. If it reaches the set value, the reflux regulating valve is adjusted down, and the discharge flow meter and the solvent switch valve are opened, so that part of the liquid enters the distillation tower to adjust the temperature of the top of the distillation tower, and the other part of the liquid enters the organic solvent storage tank for use, thereby ensuring the quality of the recovered organic solvent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0028] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0030] In the figure, 1. first-stage centrifuge; 2. second-stage centrifuge; 3. third-stage centrifuge; 4. toxin protein storage tank; 5. organic solvent storage tank; 6. detoxified protein storage tank; 7. feed pump; 8. feed valve; 9. bag filter; 10. evaporator; 11. distillation tower; 12. condenser; 13. temporary storage tank for toxin solution; 14. agitator; 15. discharge pipe; 16. distillation circulation pump; 17. discharge density meter; 18. circulation pipe; 19. discharge pipe; 20. distillation regulating valve; 21. discharge switch valve; 22. precooler; 23. spiral coil; 24. condensate pipe; 25. solvent recovery pipe; 26. reflux circulation pump; 27. discharge flow meter; 28. solvent switch valve; 29. ​​reflux pipe; 30. reflux density meter; 31. reflux regulating valve. DETAILED DESCRIPTION

[0031] The utility model discloses a device for removing toxins from corn protein, which is used to solve the problems of poor detoxification effect of corn protein detoxification devices in the prior art, much waste liquid generated during the detoxification process and high energy consumption.

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example

[0034] like Figure 1-3 As shown, a device for removing toxins from corn protein includes a centrifugal extraction device and a solvent recovery device;

[0035] The centrifugal extraction equipment comprises a primary centrifuge 1, a secondary centrifuge 2, and a tertiary centrifuge 3 which are connected in sequence, wherein the protein phase outlet of the primary centrifuge 1 is connected to the liquid inlet of the secondary centrifuge 2, and the protein phase outlet of the secondary centrifuge 2 is connected to the liquid inlet of the tertiary centrifuge 3; the primary centrifuge 1 is connected to a toxin-containing protein storage tank 4, the primary centrifuge 1, the secondary centrifuge 2, and the tertiary centrifuge 3 are respectively connected to an organic solvent storage tank 5, and the protein phase outlet of the tertiary centrifuge 3 is connected to a detoxified protein storage tank 6; a feed pump 7 and a feed valve 8 are respectively provided on the connecting pipes between the organic solvent storage tank 5 and the primary centrifuge 1, the secondary centrifuge 2, and the tertiary centrifuge 3, and on the connecting pipes between the toxin-containing protein storage tank 4 and the primary centrifuge 1; a bag filter 9 is provided on the connecting pipes between the organic solvent storage tank 5 and the primary centrifuge 1, the secondary centrifuge 2, and the tertiary centrifuge 3, and on the connecting pipes between the toxin-containing protein storage tank 4 and the primary centrifuge 1.

[0036] Based on the above technical scheme, after the liquid in the toxin protein storage tank 4 is filtered by the bag filter 9, the feed valve 8 is opened and the liquid is fed into the first-stage centrifuge 1 under the action of the feed pump 7. The solvent in the organic solvent storage tank 5 also enters the first-stage centrifuge 1. After the toxin protein and the organic solvent are fully mixed in the first-stage centrifuge 1, the toxins in the protein are dissolved by the organic solvent. Under the action of centrifugation, the protein phase is thrown onto the drum wall of the first-stage centrifuge 1 due to its large specific gravity, while the toxin-containing phase is lighter in weight and is retained in the first-stage centrifuge 1. As the mixed liquid continues to enter, the protein phase flows out and enters the second-stage centrifuge 2, where it is mixed and extracted with the organic solvent again, and this is repeated. After extraction in the tertiary centrifuge 3, the protein phase enters the detoxified protein storage tank 6 for temporary storage. During the centrifugal extraction process, the toxin-containing phases of the first-stage centrifuge 1, the second-stage centrifuge 2 and the tertiary centrifuge 3 are discharged from the light phase outlet and enter the solvent recovery equipment for the next step of processing.

[0037] like Figure 1 As shown, the solvent recovery equipment includes an evaporator 10, a distillation tower 11, and a condenser 12 which are connected in sequence; the liquid inlet of the evaporator 10 is connected to the light phase outlets of the first-stage centrifuge 1, the second-stage centrifuge 2, and the third-stage centrifuge 3 respectively; the liquid outlet of the condenser 12 is connected to the organic solvent storage tank 5; the liquid discharge port of the distillation tower 11 is connected to the toxin-containing solution temporary storage tank 13.

[0038] Through the above technical scheme, the toxin-containing phase enters the evaporator 10 for preheating, the preheated solution enters the distillation tower 11 for distillation, the organic solvent in the solution becomes gas and is discharged from the top of the distillation tower 11 and enters the condenser 12 for condensation, the condensed organic solvent enters the organic solvent storage tank 5 for reuse, and the residual liquid at the bottom of the tower after distillation enters the toxin-containing solution temporary storage tank 13 for harmless treatment.

[0039] Furthermore, in this embodiment, the toxin-containing protein storage tank 4 , the detoxified protein storage tank 6 and the organic solvent storage tank 5 are all provided with a stirrer 14 .

[0040] Furthermore, in this embodiment, in order to improve the distillation effect, a distillation circulation pump 16 and a discharge density meter 17 are respectively provided on the discharge pipe 15 of the distillation tower 11, and the discharge pipe 15 is respectively connected to the circulation pipe 18 and the discharge pipe 19, the other end of the circulation pipe 18 is connected to the liquid inlet of the distillation tower 11, and the other end of the discharge pipe 19 is connected to the toxin-containing solution temporary storage tank 13; the circulation pipe 18 and the discharge pipe 19 are respectively provided with a distillation regulating valve 20 and a discharge switch valve 21, and the discharge density meter 17 is respectively interlocked with the distillation regulating valve 20 and the discharge switch valve 21.

[0041] In the above arrangement, the discharge density meter 17 can monitor the solid content of the discharge liquid of the distillation tower 11 in real time. If the solid content is low, the bottom liquid of the distillation tower 11 will re-enter the distillation tower 11 for distillation. When the solid content reaches the set value, the discharge density meter 17 will transmit a signal to the external control system (not shown in the figure), and the external control system will automatically close the distillation regulating valve 20 and open the discharge switch valve 21, and the residual liquid at the bottom of the tower will enter the toxin-containing solution temporary storage tank 13.

[0042] Furthermore, in this embodiment, in order to better recover the organic solvent, a precooler 22 is also provided on the connecting pipe between the distillation tower 11 and the condenser 12. Furthermore, a spiral coil 23 is provided in the condenser 12, one end of the spiral coil 23 is connected to the condensed water pipe 24, and the other end of the spiral coil 23 is connected to the heat exchange medium inlet of the precooler 22. Condensed water is introduced into the spiral coil 23 through the condensed water pipe 24, and the condensed water in the spiral coil 23 is discharged and enters the heat exchange medium inlet of the precooler 22, and the organic solvent in the precooler 22 is preliminarily cooled, and then the organic solvent enters the condenser 12 for re-cooling, and the condensed organic solvent enters the organic solvent storage tank 5 for utilization.

[0043] Furthermore, in this embodiment, in order to ensure the quality of the recovered organic solvent, the condenser 12 is connected to the organic solvent storage tank 5 through a solvent recovery pipeline 25, and the solvent recovery pipeline 25 is provided with a reflux circulation pump 26, a discharge flow meter 27 and a solvent switch valve 28. The solvent recovery pipeline 25 is also connected to the liquid inlet of the distillation tower 11 through a reflux pipeline 29; a reflux density meter 30 and a reflux regulating valve 31 are provided on the reflux pipeline 29, and the reflux density meter 30 is interlocked with the discharge flow meter 27, the solvent switch valve 28, and the reflux regulating valve 31, respectively.

[0044] Through the above arrangement, the reflux density meter 30 monitors the density of the liquid in the reflux pipe 29. If the density drops to a set value, the reflux regulating valve 31 is adjusted down, the solvent switch valve 28 and the discharge flow meter 27 are opened, and part of the liquid enters the upper part of the distillation tower 11 to reduce the temperature at the top of the distillation tower 11, thereby avoiding the top temperature of the distillation tower 11 being too high and reducing the distillation effect; the other part of the liquid enters the organic solvent storage tank 5 for recycling.

[0045] In summary, the device for removing toxins from corn protein provided in the present application can not only effectively remove toxins from the protein to obtain high-quality protein, but also recycle organic solvents, thereby reducing the energy consumption of detoxification.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for removing toxins from corn protein, characterized in that: Including centrifugal extraction equipment and solvent recovery equipment; The centrifugal extraction equipment comprises a primary centrifuge, a secondary centrifuge, and a tertiary centrifuge which are sequentially connected, wherein the primary centrifuge is connected to a toxin-containing protein storage tank, the primary centrifuge, the secondary centrifuge, and the tertiary centrifuge are respectively connected to an organic solvent storage tank, and the protein phase outlet of the tertiary centrifuge is connected to a detoxified protein storage tank; The solvent recovery equipment includes an evaporator, a distillation tower, and a condenser which are connected in sequence; the liquid inlet of the evaporator is respectively connected to the light phase outlets of the first-stage centrifuge, the second-stage centrifuge, and the third-stage centrifuge; the liquid outlet of the condenser is connected to the organic solvent storage tank; the liquid discharge port of the distillation tower is connected to the temporary storage tank for the toxin-containing solution.

2. The device for removing toxins from corn protein according to claim 1, characterized in that: The protein phase outlet of the first-stage centrifuge is connected to the liquid inlet of the second-stage centrifuge, and the protein phase outlet of the second-stage centrifuge is connected to the liquid inlet of the tertiary centrifuge.

3. The device for removing toxins from corn protein according to claim 1, characterized in that: Include at least one of the following characteristics: A feed pump and a feed valve are respectively provided on the connecting pipes between the organic solvent storage tank and the first-stage centrifuge, the second-stage centrifuge, and the third-stage centrifuge, and on the connecting pipe between the toxin protein storage tank and the first-stage centrifuge; Bag filters are provided on the connecting pipes between the organic solvent storage tank and the first-stage centrifuge, the second-stage centrifuge and the third-stage centrifuge, and on the connecting pipe between the toxin protein storage tank and the first-stage centrifuge.

4. The device for removing toxins from corn protein according to claim 1, characterized in that: The toxin-containing protein storage tank, the detoxified protein storage tank and the organic solvent storage tank are all provided with a stirrer.

5. The device for removing toxins from corn protein according to claim 1, characterized in that: A distillation circulation pump and a discharge density meter are respectively provided on the discharge pipeline of the distillation tower.

6. The device for removing toxins from corn protein according to claim 5, characterized in that: The discharge pipe is connected to the circulation pipe and the liquid outlet pipe respectively, the other end of the circulation pipe is connected to the liquid inlet of the distillation tower, and the other end of the liquid outlet pipe is connected to the temporary storage tank of the toxin-containing solution; the circulation pipe and the liquid outlet pipe are respectively provided with a distillation regulating valve and a discharge switch valve, and the discharge density meter is respectively interlocked with the distillation regulating valve and the discharge switch valve.

7. The device for removing toxins from corn protein according to claim 1, characterized in that: A precooler is also provided on the connecting pipeline between the distillation tower and the condenser.

8. The device for removing toxins from corn protein according to claim 7, characterized in that: The condenser is provided with a spiral coil, one end of the spiral coil is connected to the condensed water pipeline, and the other end of the spiral coil is connected to the heat exchange medium inlet of the precooler.

9. The device for removing toxins from corn protein according to claim 1, characterized in that: The condenser is communicated with the organic solvent storage tank through a solvent recovery pipeline, and the solvent recovery pipeline is provided with a reflux circulation pump, a discharge flow meter and a solvent switch valve.

10. The device for removing toxins from corn protein according to claim 9, characterized in that: The solvent recovery pipeline is also connected to the liquid inlet of the distillation tower through a reflux pipeline; a reflux density meter and a reflux regulating valve are arranged on the reflux pipeline, and the reflux density meter is interlocked with the discharge flow meter, the solvent switch valve and the reflux regulating valve respectively.

Images