CN215841795U - Continuous centrifugal filtration of natural pigment extract and residual liquid recovery system - Google Patents
Continuous centrifugal filtration of natural pigment extract and residual liquid recovery system Download PDFInfo
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- CN215841795U CN215841795U CN202122095989.7U CN202122095989U CN215841795U CN 215841795 U CN215841795 U CN 215841795U CN 202122095989 U CN202122095989 U CN 202122095989U CN 215841795 U CN215841795 U CN 215841795U
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Abstract
The utility model relates to a system for continuous centrifugal filtration and residual liquid recovery of a natural pigment extracting solution, which comprises an extracting solution storage tank, a horizontal screw centrifuge, a butterfly centrifuge, a ceramic membrane storage tank, a ceramic membrane, a nanofiltration membrane storage tank, a nanofiltration membrane and a nanofiltration membrane clear solution storage tank, wherein the bottom of the extracting solution storage tank is connected with a horizontal screw feed pump through a pipeline and a valve, a clear solution outlet of the horizontal screw centrifuge is connected with a horizontal screw clear solution collecting tank, a clear solution outlet of the butterfly centrifuge is connected with an inlet of the ceramic membrane storage tank, the bottom of the ceramic membrane storage tank is connected with the ceramic membrane through a ceramic membrane circulating pump, a clear solution outlet of the ceramic membrane is connected with the nanofiltration membrane storage tank, the bottom of the nanofiltration membrane storage tank is connected with the nanofiltration membrane through a nanofiltration membrane circulating pump, and a clear solution outlet of the nanofiltration membrane is connected with the nanofiltration membrane clear solution storage tank; the system is suitable for centrifugal filtration of most plant extracts, especially natural pigments, and can be used for continuous production to obtain clear extract no matter how high the residue content of the extract is and whether the extract is centrifuged or filtered.
Description
Technical Field
The utility model relates to the technical field of extracting solution centrifugal filtration equipment, in particular to a system for continuous centrifugal filtration and residual liquid recovery of a natural pigment extracting solution.
Background
At present, in the production process of plant extracts, particularly water-soluble natural pigments, centrifugation and filtration of an extracting solution are indispensable steps, which are the basis for subsequent high-precision separation and purification, and insoluble components in the extracting solution are removed by means of centrifugation and filtration, so that subsequent processes such as purification, concentration, drying and the like can be carried out. Conventional centrifugal equipment such as a three-leg decanter centrifuge has low equipment handling capacity and cannot continuously produce, a horizontal decanter centrifuge can handle extracting solution with high sediment content, but the equipment rotating speed is not high, the separation factor is low, and sediment in the extracting solution cannot be completely removed; the rotating speed of the disc centrifuge is high, the separation factor is high, clear liquid can be obtained, but the requirement on the sediment content of the fed material is strict (generally not higher than 5%), otherwise, the clear liquid contains sediment, and even the sediment in the equipment is too much, so that the equipment is damaged. The conventional filtering equipment such as a cloth bag filter has small filtering area, easy blockage of a filter bag and low filtering precision; the diatomite filter has the disadvantages of complex equipment structure, large quantity of filter plate frames and filter cloth, troublesome cleaning, use of filter medium diatomite and certain foreign matter risk. The common centrifugal filtration equipment can generate a certain amount of residual liquid in the production process or after the production process is finished, such as disc-type slag discharge, ceramic membrane concentrated liquid and nanofiltration membrane concentrated liquid, which cannot be utilized and are generally directly discharged into sewage, so that the product yield is reduced and the sewage treatment capacity is increased.
Disclosure of Invention
The utility model aims to provide a continuous centrifugal filtration and residual liquid recovery system for natural pigment extracting solution, which is suitable for centrifugal filtration of most plant extracts, particularly natural pigment, and can be used for continuous production to obtain clear extracting solution no matter how high the residue content of the extracting solution is and whether the extracting solution is centrifuged or filtered.
The specific scheme of the utility model is as follows: a continuous centrifugal filtration and residual liquid recovery system for a natural pigment extracting solution comprises an extracting solution storage tank, a horizontal screw centrifuge, a butterfly centrifuge, a ceramic membrane storage tank, a ceramic membrane, a nanofiltration membrane storage tank, a nanofiltration membrane and a nanofiltration membrane clear solution storage tank, wherein the bottom of the extracting solution storage tank is connected with a horizontal screw feed pump through a pipeline and a valve, the outlet of the horizontal screw feed pump is connected with the feed inlet of the horizontal screw centrifuge, the clear solution outlet of the horizontal screw centrifuge is connected with a horizontal screw clear solution collecting tank, the slag outlet of the horizontal screw centrifuge is connected with a horizontal screw slag collecting tank, the outlet of the horizontal screw clear solution collecting tank is connected with the feed inlet of the butterfly centrifuge through the butterfly feed pump, the clear solution outlet of the butterfly centrifuge is connected with the inlet of the ceramic membrane residual solution storage tank, the outlet of the butterfly slag collecting tank is connected with the ceramic membrane storage tank, the bottom of the ceramic membrane storage tank is connected with the ceramic membrane through a ceramic membrane circulating pump, the clear solution exit linkage of ceramic membrane receives the membrane storage tank, receives and receives the membrane storage tank bottom and connect through receiving the membrane circulating pump and receive the membrane, receives the clear solution exit linkage of membrane and receives the membrane clear solution storage tank, butterfly sediment collecting vat, ceramic membrane storage tank and receive the membrane storage tank and be connected to one through the pipeline respectively and remain the liquid recovery pump entry, remain the exit linkage of liquid recovery pump to the feed inlet of extract storage tank.
Furthermore, in the utility model, a horizontal screw centrifuge and a disc centrifuge are used in series in the centrifugal section, wherein the rotating drum and the spiral rotating speed of the horizontal screw centrifuge are respectively controlled by a frequency converter, and the highest rotating speeds of the horizontal screw centrifuge and the spiral rotating speed are 3400 revolution and 2900 revolution per minute respectively; the rotating speed of the disc centrifuge is 7500 rpm, the slag discharge interval time is adjusted within 3-60 minutes, and a flowmeter and an adjusting ball valve are connected in front of the respective feed inlets of the horizontal screw centrifuge and the disc centrifuge.
Furthermore, in the utility model, a ceramic membrane and a nanofiltration membrane are used in series at a filtering working section, wherein a filtering medium of the ceramic membrane equipment is a multi-channel tubular membrane sintered by inorganic ceramic materials, the membrane aperture is 100 nanometers, and high-flow circulating cross flow filtration is adopted; the filter medium of the nanofiltration membrane equipment is a roll-up membrane made of high molecular organic materials, the aperture is 5 nanometers, and high-pressure circulating filtration is adopted.
Furthermore, the ceramic membrane is formed by connecting two sets of ceramic membrane bodies in series.
Furthermore, the nanofiltration membrane is formed by connecting two sets of nanofiltration membrane bodies in parallel for use.
Compared with the prior design, the utility model has the following advantages:
(1) the centrifugal section is formed by connecting a horizontal screw centrifuge and a disc centrifuge in series, wherein the rotating drum and the spiral rotating speed of the horizontal screw centrifuge are respectively controlled by a frequency converter, the rotating speed is adjustable, the deslagging interval time is adjustable, and meanwhile, a flow meter and an adjusting ball valve are connected behind the feeding pumps of the horizontal screw centrifuge and the disc centrifuge, the feeding speed is adjustable, different types of extracting solutions can be processed by adjusting the parameters, so that the application range is wide, and the processing effect is good.
(2) According to the utility model, the ceramic membrane and the nanofiltration membrane are used in series, and two membranes with different apertures are sequentially used for filtering, so that impurities in the clear liquid of the centrifuge are further removed, meanwhile, the rapid blockage of membrane holes is avoided, the equipment cleaning frequency is reduced, and the production efficiency is improved.
(3) The centrifugal machine and the membrane equipment are used in series, a large amount of large-particle impurities are removed by the centrifugal machine, and fine suspended matters are removed by membrane filtration, so that the centrifugal machine is efficient and convenient.
(4) The traditional wastes such as the disc-type slag, the ceramic membrane, the nanofiltration membrane residual liquid and the like can be recycled for secondary treatment, the product recovery rate is improved, the final slag discharge port of the whole device is only the slag discharge port of the horizontal screw centrifuge, the discharged sludge-like solid precipitates, and the amount is small, so that the waste treatment is facilitated.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
In the figure: the method comprises the following steps of 1, an extracting solution storage tank, 2, a valve, 3, a horizontal spiral shell feed pump, 4, a horizontal spiral shell centrifuge, 5, a horizontal spiral shell slag collecting tank, 6, a horizontal spiral shell clear solution collecting tank, 7, a disc type feed pump, 8, a disc type centrifuge, 9, a residual solution recovery pump, 10, a ceramic membrane storage tank, 11, a ceramic membrane circulating pump, 12, a ceramic membrane, 13, a nanofiltration membrane storage tank, 14, a nanofiltration membrane circulating pump, 15, a nanofiltration membrane, 16, a nanofiltration membrane clear solution storage tank and 17, a disc type slag collecting tank.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention or simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the utility model is a system for continuous centrifugal filtration and residual liquid recovery of natural pigment extracting solution, which comprises an extracting solution storage tank 1, a horizontal screw centrifuge 4, a butterfly centrifuge 8, a ceramic membrane storage tank 10, a ceramic membrane 12, a nanofiltration membrane storage tank 13, a nanofiltration membrane 15 and a nanofiltration membrane clear solution storage tank 16, wherein the bottom of the extracting solution storage tank is connected with a horizontal screw feed pump 3 through a pipeline and a valve 2, the outlet of the horizontal screw feed pump is connected with the feed inlet of the horizontal screw centrifuge, the clear solution outlet of the horizontal screw centrifuge is connected with a horizontal screw clear solution collecting tank 6, the slag outlet of the horizontal screw centrifuge is connected with a horizontal screw slag collecting tank 5, the outlet of the horizontal screw clear solution collecting tank is connected with the feed inlet of the butterfly centrifuge through the butterfly feed pump, the clear solution outlet of the butterfly centrifuge is connected with the inlet of the ceramic membrane storage tank, and the residual solution outlet of the butterfly centrifuge is connected with a butterfly slag collecting tank 17, ceramic membrane circulating pump 11 is passed through in the bottom of ceramic membrane storage tank and is connected the ceramic membrane, and the clear solution exit linkage of ceramic membrane receives the membrane storage tank, receives the membrane storage tank bottom and connects through receiving membrane circulating pump 14 and receive the membrane, receives the membrane clear solution exit linkage of receiving the membrane and receives the membrane clear solution storage tank, butterfly sediment collecting vat 17, ceramic membrane storage tank 10 and receive membrane storage tank 13 and be connected to one through the pipeline respectively and remain 9 entries of liquid recovery pump, remain the export connection of liquid recovery pump to the feed inlet of extract storage tank.
Furthermore, in the embodiment, a horizontal screw centrifuge and a disc centrifuge are used in series in the centrifugal section, wherein the rotating drum and the spiral rotating speed of the horizontal screw centrifuge are respectively controlled by a frequency converter, and the highest rotating speeds of the horizontal screw centrifuge and the spiral rotating speed are 3400 rpm and 2900 rpm respectively; the rotating speed of the disc centrifuge is 7500 rpm, the slag discharge interval time is adjusted within 3-60 minutes, and a flowmeter and an adjusting ball valve are connected in front of the respective feed inlets of the horizontal screw centrifuge and the disc centrifuge.
Furthermore, in the embodiment, a ceramic membrane and a nanofiltration membrane are used in series at a filtering working section, wherein a filtering medium of the ceramic membrane equipment is a multi-channel tubular membrane formed by sintering an inorganic ceramic material, the membrane aperture is 100 nanometers, and high-flow circulating cross flow filtration is adopted; the filter medium of the nanofiltration membrane equipment is a roll-up membrane made of high molecular organic materials, the aperture is 5 nanometers, and high-pressure circulating filtration is adopted.
Further, in the present embodiment, the ceramic membrane is formed by two sets of ceramic membrane bodies connected in series.
Further, in the present embodiment, the nanofiltration membrane is formed by connecting two sets of nanofiltration membrane bodies in parallel.
The working process of the utility model is as follows:
opening a horizontal screw centrifuge, respectively setting the rotating speed of a rotary drum and the rotating speed of a screw, starting a horizontal screw feeding pump and a corresponding valve, and simultaneously adjusting a flow regulating valve to a proper flow according to the flow of a flowmeter; opening a disc centrifuge, setting slag discharge interval time, opening a disc feed pump and a corresponding valve, and adjusting a flow regulating valve to proper flow according to the flow of a flowmeter; opening the ceramic membrane circulating pump and a corresponding valve, and adjusting the pressure regulating valve to the required pressure; a nanofiltration membrane circulating pump and a corresponding valve are started, and a pressure regulating valve is regulated to the required pressure; and (3) starting a residual liquid recovery pump and corresponding valves when the production is finished for a certain time, and pumping the residual liquid in the ceramic membrane storage tank and the residual liquid in the nanofiltration membrane storage tank into the front extracting solution.
The centrifugal section of the utility model is used by connecting a horizontal screw centrifuge and a disc centrifuge in series, wherein the rotating drum and the spiral rotating speed of the horizontal screw centrifuge are respectively controlled by a frequency converter, the rotating speed is adjustable, the slag discharge interval time is adjustable, meanwhile, an electronic flowmeter and an adjusting ball valve are connected behind the feeding pumps of the horizontal screw centrifuge and the disc centrifuge, the feeding speed is adjustable, different types of extracting solutions can be processed by adjusting the parameters, the application range is wide, and the processing effect is good.
The ceramic membrane and the nanofiltration membrane are used in series, and the two membranes with different apertures are sequentially filtered to further remove impurities in the clear liquid of the centrifuge, simultaneously avoid the rapid blockage of the membrane apertures, reduce the cleaning frequency of equipment and improve the production efficiency.
The centrifugal machine and the membrane equipment are used in series, a large amount of large-particle impurities are removed by the centrifugal machine, and fine suspended matters are removed by membrane filtration, so that the centrifugal machine is efficient and convenient.
The traditional wastes such as the disc-type slag, the ceramic membrane, the nanofiltration membrane residual liquid and the like can be recycled for secondary treatment, so that the product yield is improved, the final slag discharge port of the whole device is only the slag discharge port of the horizontal screw centrifuge, the discharged sludge-like solid precipitates, and the amount is small, so that the waste treatment is facilitated.
Claims (5)
1. The utility model provides a natural pigment extract continuous centrifugal filtration and residual liquid recovery system which characterized in that: the device comprises an extracting solution storage tank, a horizontal screw centrifuge, a butterfly centrifuge, a ceramic membrane storage tank, a ceramic membrane, a nanofiltration membrane storage tank, a nanofiltration membrane and a nanofiltration membrane clear liquid storage tank, wherein the bottom of the extracting solution storage tank is connected with a horizontal screw feed pump through a pipeline, a valve is connected with a horizontal screw feed pump, the outlet of the horizontal screw feed pump is connected with the feed inlet of the horizontal screw centrifuge, the clear liquid outlet of the horizontal screw centrifuge is connected with a horizontal screw clear liquid collecting tank, the slag outlet of the horizontal screw centrifuge is connected with a horizontal screw slag collecting tank, the outlet of the horizontal screw clear liquid collecting tank is connected with the feed inlet of the butterfly centrifuge through the butterfly feed pump, the clear liquid outlet of the butterfly centrifuge is connected with the inlet of the ceramic membrane storage tank, the butterfly slag outlet of the butterfly centrifuge is connected with the ceramic membrane collecting tank through a ceramic membrane circulating pump, the clear liquid outlet of the ceramic membrane is connected with the nanofiltration membrane storage tank, the bottom of the nanofiltration membrane storage tank is connected with the nanofiltration membrane through the nanofiltration membrane circulating pump, the clear solution exit linkage who receives the filter membrane receives filter membrane clear solution storage tank, butterfly sediment collecting vat, ceramic membrane storage tank and receive filter membrane storage tank are connected to one through the pipeline respectively and remain liquid recovery pump entry, remain the export of liquid recovery pump and be connected to the feed inlet of extract storage tank.
2. The system according to claim 1, wherein the system comprises: the centrifugal section is a horizontal screw centrifuge and a disc centrifuge which are used in series, wherein the rotating drum and the spiral rotating speed of the horizontal screw centrifuge are respectively controlled by a frequency converter, and the highest rotating speeds of the horizontal screw centrifuge and the spiral rotating speed are 3400 revolution and 2900 revolution per minute respectively; the rotating speed of the disc centrifuge is 7500 rpm, the slag discharge interval time is adjusted within 3-60 minutes, and a flowmeter and an adjusting ball valve are connected in front of the respective feed inlets of the horizontal screw centrifuge and the disc centrifuge.
3. The system according to claim 1, wherein the system comprises: in the filtering working section, a ceramic membrane and a nanofiltration membrane are used in series, wherein a filtering medium of the ceramic membrane equipment is a multi-channel tubular membrane formed by sintering an inorganic ceramic material, the membrane aperture is 100 nanometers, and high-flow circulating cross flow filtration is adopted; the filter medium of the nanofiltration membrane equipment is a roll-up membrane made of high molecular organic materials, the aperture is 5 nanometers, and high-pressure circulating filtration is adopted.
4. The system according to claim 1, wherein the system comprises: the ceramic membrane is formed by connecting two sets of ceramic membrane bodies in series.
5. The system according to claim 1, wherein the system comprises: the nanofiltration membrane is formed by connecting two sets of nanofiltration membrane bodies in parallel for use.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095989.7U CN215841795U (en) | 2021-09-01 | 2021-09-01 | Continuous centrifugal filtration of natural pigment extract and residual liquid recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122095989.7U CN215841795U (en) | 2021-09-01 | 2021-09-01 | Continuous centrifugal filtration of natural pigment extract and residual liquid recovery system |
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| CN215841795U true CN215841795U (en) | 2022-02-18 |
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| CN202122095989.7U Active CN215841795U (en) | 2021-09-01 | 2021-09-01 | Continuous centrifugal filtration of natural pigment extract and residual liquid recovery system |
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