Solid-liquid separation system for pea protein production
By using a multi-stage solid-liquid separation system, combined with a horizontal screw separator and a disc separator, the problem of low pea protein yield and purity caused by the low speed of the horizontal screw separator was solved, achieving efficient separation and quality improvement in the pea protein production process.
Patent Information
- Application Number
- CN202423093001.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In existing technologies, the relative rotation speed of horizontal screw separators is relatively low, resulting in low yield and purity of pea protein and poor separation effect.
A multi-stage solid-liquid separation system is adopted, which includes a combination of a horizontal screw separator and a disc separator. After initial separation by the horizontal screw separator, the light phase material is fed back into the disc separator for secondary separation, and the heavy phase material from the disc separator is recycled back to the feed tank to enhance the separation effect.
It increased the yield of pea protein by about 5% and the purity of protein by about 2%, enhanced the solid-liquid separation effect, and improved the overall production efficiency and product quality.
Smart Images
Figure CN223555613U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food engineering technical field, especially a kind of solid-liquid separation system for pea protein production. BACKGROUND
[0002] Pea protein is isolated protein extracted from pea powder, contains high-quality protein and 18 kinds of amino acids required by human body, and has low allergenicity and a series of excellent processing performance, so it is widely used in the field of plant protein food.
[0003] Wet processing of pea protein is the main production method of edible pea protein at present, in wet processing, alkali dissolution section, acid precipitation section, protein washing section and the like need to carry out solid-liquid separation, therefore the efficiency and quality of solid-liquid separation process are directly related to the production efficiency and quality of edible pea protein.
[0004] At present, in the industrialized production process of pea protein, single horizontal screw separator is often used for solid-liquid separation, since the relative speed of horizontal screw separator is relatively low, the separation effect is poor, and then a series of problems such as low pea protein yield and relatively low protein purity are caused.
[0005] Therefore, in view of the deficiencies in the prior art, it is necessary to design a solid-liquid separation system for pea protein production to solve the above problems.
[0006] It should be noted that the above introduction to the technical background is only to facilitate the clear and complete description of the technical scheme of the utility model, and to facilitate the understanding of the skilled in the art, and the above content cannot be considered as known by the skilled in the art because these contents are described in the background of the utility model. UTILITY MODEL CONTENT
[0007] In order to overcome the deficiencies in the prior art, the utility model aims to disclose a solid-liquid separation system for pea protein production, to solve the problem of low yield and protein purity in the industrialized production process of pea protein.
[0008] The utility model discloses a solid -liquid separation system for pea protein production, including feed tank, and the feed tank is connected with the feed port of horizontal screw separator through the pipeline, and the heavy phase mouth of horizontal screw separator is connected with the feed port of first heavy phase tank through the pipeline, and the discharge port of first heavy phase tank is connected to the next section through the pipeline, and the light phase mouth of horizontal screw separator is connected with the feed port of first light phase tank, and the discharge port of first light phase tank is connected with the feed port of disc separator through the pipeline, and the heavy phase mouth of disc separator is connected with the feed port of second heavy phase tank through the pipeline, and the discharge port of second heavy phase tank is connected to feed tank through the pipeline, and the light phase mouth of disc separator is connected with the feed port of second light phase tank, and the discharge port of second light phase tank is connected to waste water recovery system through the pipeline.
[0009] Preferred technical scheme: the connecting pipeline between the feed tank and the horizontal screw separator is equipped with a horizontal screw feed pump, which is used for providing stable feed flow and pressure for the horizontal screw separator.
[0010] Preferred technical scheme: the connecting pipeline between the first heavy phase tank and the next section is equipped with a first heavy phase pump, which is used for ensuring the smooth delivery of materials between the first heavy phase tank and the next section.
[0011] Preferred technical scheme: the connecting pipeline between the first light phase tank and the disc separator is equipped with a first light phase pump, which is used for providing stable feed flow and pressure for the disc separator.
[0012] Preferred technical scheme: the connecting pipeline between the second heavy phase tank and the feed tank is equipped with a second heavy phase pump, which is used for ensuring the smooth delivery of materials between the second heavy phase tank and the feed tank.
[0013] Preferred technical scheme: the connecting pipeline between the second light phase tank and the waste water recovery system is equipped with a second light phase pump, which is used for ensuring the discharge efficiency of waste liquid in the second light phase tank.
[0014] Preferred technical scheme: the first light phase pump and the second light phase pump are centrifugal pumps, which ensure the stability of delivery flow.
[0015] Preferred technical scheme: when the solid -liquid separation system is used in alkali dissolution section, the horizontal screw feed pump, the first heavy phase pump and the second heavy phase pump are centrifugal pumps, which ensure the stability of delivery flow; when the solid -liquid separation system is used in acid precipitation section or protein water washing section, the horizontal screw feed pump, the first heavy phase pump and the second heavy phase pump are rotor pumps, which can meet the processing requirements of high pressure and high viscosity medium.
[0016] Preferred technical scheme: the feed tank, the first heavy phase tank, the first light phase tank, the second heavy phase tank and the second light phase tank are all solution tanks with oval top and conical bottom, which are convenient for emptying and cleaning.
[0017] Preferred technical scheme: the feed tank, the first heavy phase tank and the second heavy phase tank are equipped with stirring devices, which can prevent internal materials from depositing.
[0018] By means of the technical scheme, the present application has the beneficial effects compared with the prior art:
[0019] The solid-liquid separation system for pea protein production of the present application can enhance the solid-liquid separation effect, and recycle part of the discharged protein, thereby increasing the yield and purity of the pea protein in the whole system, and finally increasing the pea protein yield by about 5% and the protein purity by about 2% in the solid-liquid separation process. BRIEF DESCRIPTION OF DRAWINGS
[0020] To more clearly illustrate the technical solutions in the specific embodiments or the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0021] Figure 1 The present application is a solid-liquid separation system for pea protein production.
[0022] In the above drawings, 1 is a feed tank, 2 is a horizontal screw feed pump, 3 is a horizontal screw separator, 4 is a first heavy phase tank, 5 is a first heavy phase pump, 6 is a first light phase tank, 7 is a first light phase pump, 8 is a disc separator, 9 is a second heavy phase tank, 10 is a second heavy phase pump, 11 is a second light phase tank, and 12 is a second light phase pump. DETAILED DESCRIPTION
[0023] The embodiments of the present application will be described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification.
[0024] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above drawings are intended to distinguish between similar objects and not necessarily in a particular order or sequence. It should be understood that the data thus used can be interchanged, where appropriate, to describe the embodiments of the present application. In addition, the terms "comprise" and "have" and their synonyms, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a list of steps or units does not necessarily limit those steps or units to the clearly listed ones, but can include other steps or units not clearly listed or inherent to such processes, methods, products or devices.
[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to having a particular orientation, or to being constructed and operated in a particular orientation.
[0026] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.
[0027] In addition, the terms "mount", "set", "provided with", "connected", "connected", "sleeved", "attached" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally constructed; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For example, "attached" can be completely attached or partially attached. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0029] Embodiment:
[0030] As Figure 1The utility model discloses a solid -liquid separation system for pea protein production, including feed tank 1, when solid -liquid separation system uses in acid precipitation section, feed tank 1 is connected with the feed inlet of horizontal screw separator 3 through pipeline, and the heavy phase mouth of horizontal screw separator 3 is connected with the feed inlet of first heavy phase tank 4 through pipeline, and the discharge port of first heavy phase tank 4 is connected to protein washing section through pipeline, and the light phase mouth of horizontal screw separator 3 is connected with the feed inlet of first light phase tank 6, and the discharge port of first light phase tank 6 is connected with the feed inlet of disc separator 8 through pipeline, and the heavy phase mouth of disc separator 8 is connected with the feed inlet of second heavy phase tank 9 through pipeline, and the discharge port of second heavy phase tank 9 is connected to feed tank 1 through pipeline, and the light phase mouth of disc separator 8 is connected with the feed inlet of second light phase tank 11, and the discharge port of second light phase tank 11 is connected to waste water recovery system through pipeline.
[0031] The utility model uses the following described method and principle: the material from acid precipitation section enters the feed tank 1 upper end feed port, and after buffering in feed tank 1, is discharged from the bottom outlet and enters horizontal screw separator 3 through pipeline; after the material is separated by horizontal screw separator 3, horizontal screw heavy phase and horizontal screw light phase are generated, and horizontal screw heavy phase enters first heavy phase tank 4 through the heavy phase mouth of horizontal screw separator 3, and after buffering in first heavy phase tank 4, is transported to protein washing section as the final product of this section, and horizontal screw light phase enters first light phase tank 6 through the light phase mouth of horizontal screw separator 3, and after buffering in first light phase tank 6, is transported to disc separator 8, because the separation factor of disc separator 8 is higher than that of horizontal screw separator 3, so disc heavy phase and disc light phase can be further separated from horizontal screw light phase, disc heavy phase enters second heavy phase tank 9 through the heavy phase mouth of disc separator 8, and after buffering in second heavy phase tank 9, is transported to feed tank 1, to realize the recycling of disc heavy phase, and further improve the yield of acid precipitation, and the concentration of material in feed tank 1 is improved, and the purity of horizontal screw heavy phase separated by horizontal screw separator 3 is increased, and finally the yield and purity of pea protein in the whole system are improved, and disc light phase enters second light phase tank 11 through the light phase mouth of disc separator 8, and after buffering in second light phase tank 11, is transported to waste water recovery system.
[0032] Further, to ensure the stability of the purity of the horizontal screw heavy phase, a horizontal screw feed pump 2 is arranged on the connecting pipeline between the feed tank 1 and the horizontal screw separator 3, so as to provide stable feed flow and pressure for the horizontal screw separator 3, and keep the actual separation effect of the horizontal screw separator 3 stable.
[0033] Further, to avoid the blockage of the horizontal screw heavy phase, a first heavy phase pump 5 is arranged on the connecting pipeline between the first heavy phase tank 4 and the protein washing section, so as to ensure the smooth transportation of the material between the first heavy phase tank 4 and the protein washing section.
[0034] Further, in order to ensure the production efficiency and purity stability of the disc heavy phase, a first light phase pump 7 is arranged on the connecting pipeline between the first light phase tank 6 and the disc separator 8, so as to provide stable feed flow and pressure for the disc separator 8, and ensure the stable output of the disc heavy phase of the disc separator 8.
[0035] Further, in order to ensure the concentration stability of the material in the feed tank, a second heavy phase pump 10 is arranged on the connecting pipeline between the second heavy phase tank 9 and the feed tank 1, so as to ensure the smooth material conveying between the second heavy phase tank 9 and the feed tank 1, and make the material from the acid precipitation section and the disc heavy phase maintain a relatively stable ratio to enter the feed tank 1.
[0036] Further, in order to improve the separation efficiency of the solid-liquid separation system, a second light phase pump 12 is arranged on the connecting pipeline between the second light phase tank 11 and the wastewater recovery system, so as to ensure the discharge efficiency of the disc light phase in the second light phase tank 11.
[0037] Further, the first light phase pump 7 and the second light phase pump 12 are centrifugal pumps, which ensure the stability of the conveying flow of the decanter light phase and the disc light phase.
[0038] Further, in order to reduce the use of the solid-liquid separation system in the alkali dissolution section, the decanter feed pump 2, the first heavy phase pump 5 and the second heavy phase pump 10 are centrifugal pumps, which ensure the stability of the conveying flow; when the solid-liquid separation system is used in the acid precipitation section or the protein washing section, the decanter feed pump 2, the first heavy phase pump 5 and the second heavy phase pump 10 are rotor pumps, which meet the processing requirements of the high-viscosity decanter heavy phase and the disc heavy phase.
[0039] Further, in order to facilitate the cleaning and maintenance of the system, the feed tank 1, the first heavy phase tank 4, the first light phase tank 6, the second heavy phase tank 9 and the second light phase tank 11 are all solution tanks with elliptical top and conical bottom, which are convenient for emptying and cleaning from the bottom of the tank body.
[0040] Further, in order to prevent the internal material from depositing, the feed tank 1, the first heavy phase tank 4 and the second heavy phase tank 9 are provided with stirring devices, which promote the flow of the material in the tank body, so as to make the internal material concentration uniformly distributed.
[0041] Finally, it should be noted that the above is only a preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A solid-liquid separation system for pea protein production, comprising a feed tank (1) connected by a pipe to the feed inlet of a decanter centrifuge (3), the heavy phase outlet of the decanter centrifuge (3) being connected by a pipe to the feed inlet of a first heavy phase tank (4), the discharge outlet of the first heavy phase tank (4) being connected by a pipe to the next process stage, the light phase outlet of the decanter centrifuge (3) being connected to the feed inlet of a first light phase tank (6), characterized in that: The discharge port of the first light phase tank (6) is connected with the feed port of the disc separator (8) through a pipeline, the heavy phase port of the disc separator (8) is connected with the feed port of the second heavy phase tank (9) through a pipeline, the discharge port of the second heavy phase tank (9) is connected with the feed tank (1) through a pipeline, the light phase port of the disc separator (8) is connected with the feed port of the second light phase tank (11), and the discharge port of the second light phase tank (11) is connected with the wastewater recovery system through a pipeline.
2. A solid-liquid separation system for pea protein production according to claim 1, characterized in that: A horizontal screw separator feed pump (2) is arranged on the connecting pipeline between the feed tank (1) and the horizontal screw separator (3).
3. A solid-liquid separation system for pea protein production according to claim 2, characterized in that: A first heavy phase pump (5) is arranged on the connecting pipeline between the first heavy phase tank (4) and the next section.
4. A solid-liquid separation system for pea protein production according to claim 3, characterized in that: A first light phase pump (7) is arranged on the connecting pipeline between the first light phase tank (6) and the disc separator (8).
5. A solid-liquid separation system for pea protein production according to claim 4, characterized in that: A second heavy phase pump (10) is arranged on the connecting pipeline between the second heavy phase tank (9) and the feed tank (1).
6. A solid-liquid separation system for pea protein production according to claim 5, characterized in that: A second light phase pump (12) is arranged on the connecting pipeline between the second light phase tank (11) and the wastewater recovery system.
7. A solid-liquid separation system for pea protein production according to claim 6, characterized in that: The first light phase pump (7) and the second light phase pump (12) are centrifugal pumps.
8. A solid-liquid separation system for pea protein production according to claim 7, characterized in that: When the solid-liquid separation system is used in an alkali dissolution section, the horizontal screw separator feed pump (2), the first heavy phase pump (5) and the second heavy phase pump (10) are centrifugal pumps; when the solid-liquid separation system is used in an acid precipitation section or a protein washing section, the horizontal screw separator feed pump (2), the first heavy phase pump (5) and the second heavy phase pump (10) are rotor pumps.
9. A solid-liquid separation system for pea protein production according to claim 1, characterized in that: The feed tank (1), the first heavy phase tank (4), the first light phase tank (6), the second heavy phase tank (9) and the second light phase tank (11) are all solution tanks with an elliptical top and a conical bottom.
10. A solid-liquid separation system for pea protein production according to claim 1, characterized in that: Stirring devices are arranged in the feed tank (1), the first heavy phase tank (4) and the second heavy phase tank (9).