Device for producing protein by using corn soaking water

Abstract

The utility model discloses a device for producing protein by using corn soaking water, which comprises a slurry temporary storage tank and a pre-coating film filter which are communicated with each other, a filtrate outlet and a filter residue outlet of the pre-coating film filter are respectively communicated with a plate-and-frame filter and a filter residue temporary storage tank, the plate-and-frame filter is sequentially communicated with a first spray dryer and a protein storage tank, and the first spray dryer is communicated with a second spray dryer. The filter residue temporary storage tank is respectively communicated with a pure water storage tank and a centrifugal machine, and a filtrate outlet of the centrifugal machine is sequentially communicated with a second spray dryer and a compound fertilizer storage tank. The device is good in filtering effect, waste liquid and waste residues in the whole process are fully utilized, the protein production efficiency is improved, and the protein production energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of corn soaking water treatment, in particular to a device for producing protein by utilizing corn soaking water. Background Art

[0002] In the process of producing inositol using corn soaking water as raw material, a large amount of slurry will be produced. The composition of the slurry is complex, containing various inorganic salts, organic matter, sugars, proteins and other substances, of which salt accounts for about 15wt%, crude protein is about 50wt%, sugars account for 3wt%, and the calcium ion content in the liquid is about 50-100ppm, and the magnesium ion content is about 1500-2000ppm. The direct discharge of the slurry not only causes a waste of resources, but also causes secondary pollution to the environment. Therefore, how to recycle the slurry is of great significance.

[0003] Since the slurry from the handover contains a large amount of protein, the effective development and utilization of the protein in the slurry from the handover can effectively improve the economic value of the slurry from the handover. At present, in the process of recovering the protein in the slurry from the handover, it is usually necessary to filter the slurry from the handover, but the current filtering device has poor filtering effect, resulting in a high protein impurity content in the production, low production efficiency, easy to cause blockage, high maintenance costs, high cost of use, and the wastewater in the filtration process cannot be effectively utilized. Therefore, how to provide a filtering device with high filtering effect and can fully utilize the filter residue and filtrate is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the shortcomings of the existing technology, a device for producing protein by utilizing corn soaking water is provided. The device not only has a good filtering effect, but also fully utilizes the waste liquid and waste residue in the whole process, thereby improving the production efficiency of protein and reducing the energy consumption of protein production.

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

[0006] A device for producing protein using corn soaking water comprises a connected slurry temporary storage tank and a pre-coating membrane filter, wherein the filtrate outlet and the filter residue outlet of the pre-coating membrane filter are respectively connected to a plate-and-frame filter and a filter residue temporary storage tank, the plate-and-frame filter is sequentially connected to a first spray dryer and a protein storage tank, the filter residue temporary storage tank is respectively connected to a pure water storage tank and a centrifuge, and the filtrate outlet of the centrifuge is sequentially connected to a second spray dryer and a compound fertilizer storage tank.

[0007] Preferably, a pressure gauge is provided in the pre-coating membrane filter.

[0008] Preferably, the pre-coating membrane filter is connected to a pre-coating liquid storage tank, and the supernatant outlet of the centrifuge is connected to the pre-coating liquid storage tank.

[0009] Preferably, the pre-coating liquid storage tank is provided with an activated carbon addition port and a diatomaceous earth addition port.

[0010] Preferably, the pre-coating liquid storage tank is connected to the pure water storage tank.

[0011] Preferably, the filter residue outlet of the plate and frame filter is connected to the pre-coating liquid storage tank.

[0012] Preferably, the pre-coating liquid storage tank and the filter residue temporary storage tank are both provided with a stirring device.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model provides a device for producing protein using corn soaking water, comprising a connected slurry temporary storage tank, a pre-coating membrane filter, a filtrate outlet and a filter residue outlet of the pre-coating membrane filter respectively connected to a plate-frame filter and a filter residue temporary storage tank, the plate-frame filter in turn connected to a first spray dryer and a protein storage tank, the filter residue temporary storage tank in turn connected to a pure water storage tank and a centrifuge respectively, and the filtrate outlet of the centrifuge in turn connected to a second spray dryer and a compound fertilizer storage tank. The device uses centrifuged slurry as raw material to prepare protein and obtains a byproduct compound fertilizer with certain economic value, thereby greatly improving the economic value of the centrifuged slurry and avoiding secondary pollution to the environment caused by its direct discharge.

[0015] The pre-coating membrane filter in this device is connected to a pre-coating liquid storage tank, and the supernatant outlet of the centrifuge is connected to the pre-coating liquid storage tank. The filter residue outlet of the plate and frame filter is also connected to the pre-coating liquid storage tank. This arrangement allows waste residue and waste liquid from the centrifugation and plate and frame filtration processes to be recycled, reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] In the figure, 1. Slurry temporary storage tank; 2. Pre-coating membrane filter; 3. Pre-coating liquid storage tank; 4. Plate and frame filter; 5. Filter residue temporary storage tank; 6. First spray dryer; 7. Protein storage tank; 8. Pure water storage tank; 9. Centrifuge; 10. Second spray dryer; 11. Compound fertilizer storage tank; 12. Pressure gauge; 13. Activated carbon addition port; 14. Diatomaceous earth addition port; 15. Stirring device. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example

[0021] like Figure 1 As shown, a device for producing protein using corn soaking water includes a connected slurry storage tank 1 and a pre-coating membrane filter 2, the pre-coating membrane filter 2 is connected to a pre-coating liquid storage tank 3, the filtrate outlet and the filter residue outlet of the pre-coating membrane filter 2 are respectively connected to a plate and frame filter 4 and a filter residue temporary storage tank 5, the plate and frame filter 4 is sequentially connected to a first spray dryer 6 and a protein storage tank 7, the filter residue temporary storage tank 5 is respectively connected to a pure water storage tank 8 and a centrifuge 9, and the filtrate outlet of the centrifuge 9 is sequentially connected to a second spray dryer 10 and a compound fertilizer storage tank 11.

[0022] Furthermore, in this embodiment, a pressure gauge 12 is provided in the pre-coating membrane filter 2 to facilitate real-time monitoring of the pressure in the pre-coating membrane filter 2 and ensure smooth progress of the pre-coating and filtration processes.

[0023] Furthermore, in this embodiment, the supernatant outlet of the centrifuge 9 is connected to the pre-coating liquid storage tank 3. The supernatant after centrifugation contains a certain amount of pre-coating agent, which is collected in the pre-coating liquid storage tank 3 for reuse, thereby reducing energy consumption.

[0024] Furthermore, in this embodiment, the pre-coating liquid storage tank 3 is provided with an activated carbon adding port 13 and a diatomaceous earth adding port 14, and activated carbon and diatomaceous earth are added into the pre-coating liquid storage tank 3 as pre-coating agents.

[0025] Furthermore, in this embodiment, the pre-coating liquid storage tank 3 is connected to the pure water storage tank 8. In the pre-coating liquid storage tank 3, the pre-coating agent and pure water are mixed to prepare the pre-coating liquid, which is convenient for subsequent pre-coating.

[0026] Furthermore, in this embodiment, the filter residue outlet of the plate and frame filter 4 is connected to the pre-coating liquid storage tank 3, and the filter residue contains a large amount of pre-coating agent, which is collected in the pre-coating liquid storage tank 3 and reused, thereby realizing the reuse of resources.

[0027] Furthermore, in this embodiment, a stirring device 15 is provided in both the pre-coating liquid storage tank 3 and the filter residue temporary storage tank 5. The provision of the stirring device 15 greatly improves the pre-coating efficiency. The structure of the stirring device 15 is a commonly used structure in the prior art and will not be described in detail.

[0028] The process of preparing protein using the above device is as follows:

[0029] The precoating agent and pure water are added to the precoating liquid storage tank 3 to prepare the precoating liquid, and the precoating liquid is pumped into the precoating membrane filter 2 for coating. After the coating is completed, the slurry in the slurry temporary storage tank 1 is pumped into the precoating membrane filter 2 for filtration, and the filtrate filtered by the precoating membrane filter 2 is filtered again by the plate and frame filter 4. The filtrate of the plate and frame filter 4 is dried by the first spray dryer 6 to obtain protein entering the protein storage tank 7, and the filter residue of the plate and frame filter 4 enters the precoating liquid storage tank 3 for recovery. The filter residue of the precoating membrane filter 2 enters the filter residue temporary storage tank 5, is mixed with water, and then enters the centrifuge 9 for centrifugation. The filter residue of the centrifuge 9 enters the precoating liquid storage tank 3 for recovery, and the supernatant of the centrifuge 9 is dried by the second spray dryer 10, and the obtained product enters the compound fertilizer storage tank 11.

[0030] In summary, this device uses the ionized slurry as raw material, recovers the protein and compound fertilizer containing magnesium salts, calcium salts, etc. in the ionized slurry, improves the economic value of the ionized slurry, and fully utilizes the waste liquid and waste residue in the whole process, further reducing energy consumption.

[0031] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for producing protein using corn soaking water, characterized by: The invention comprises a connected slurry temporary storage tank and a pre-coating membrane filter, wherein the filtrate outlet and the filter residue outlet of the pre-coating membrane filter are respectively connected to a plate-and-frame filter and a filter residue temporary storage tank, the plate-and-frame filter is sequentially connected to a first spray dryer and a protein storage tank, the filter residue temporary storage tank is respectively connected to a pure water storage tank and a centrifuge, and the filtrate outlet of the centrifuge is sequentially connected to a second spray dryer and a compound fertilizer storage tank.

2. The device for producing protein by utilizing corn soaking water according to claim 1, characterized in that: A pressure gauge is provided in the pre-coating membrane filter.

3. The device for producing protein by using corn soaking water according to claim 1, characterized in that: The pre-coating membrane filter is connected to a pre-coating liquid storage tank, and the supernatant outlet of the centrifuge is connected to the pre-coating liquid storage tank.

4. The device for producing protein by using corn soaking water according to claim 3, characterized in that: The pre-coating liquid storage tank is provided with an activated carbon adding port and a diatomaceous earth adding port.

5. The device for producing protein by using corn soaking water according to claim 3, characterized in that: The pre-coating liquid storage tank is communicated with the pure water storage tank.

6. The device for producing protein by using corn soaking water according to claim 3, characterized in that: The filter residue outlet of the plate and frame filter is communicated with the pre-coating liquid storage tank.

7. The device for producing protein by using corn soaking water according to claim 3, characterized in that: The pre-coating liquid storage tank and the filter residue temporary storage tank are both provided with stirring devices.

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