CN111378522A

CN111378522A - Maize germ miscella purifier

Info

Publication number: CN111378522A
Application number: CN201811625938.7A
Authority: CN
Inventors: 王跃新; 王昭熙
Original assignee: Hebei Huidian Oil And Fat Co ltd
Current assignee: Hebei Huidian Oil And Fat Co ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2020-07-07

Abstract

The invention discloses a corn germ mixed oil purification device, which realizes continuous and unpowered mixed oil purification production. The equipment comprises a hydrocyclone separator, a wire mesh filter, a time delay precipitator and a salting-out precipitator; the hydrocyclone separator is responsible for removing large-particle solid impurities in the mixed oil; the wire mesh filter is used for removing medium and small particle solid impurities in the mixed oil; the delayed settler is responsible for removing small-particle solid impurities in the mixed oil; the salting-out precipitator is responsible for removing hydrophilic impurities such as colloid, sugar, protein and the like in the mixed oil. The method has the advantages of simple process, no need of manual operation intervention and no power consumption, the obtained mixed oil has less solid impurities and less colloid impurities, the subsequent evaporation equipment has no obvious coking, and the service life of the whole set of equipment is prolonged.

Description

Maize germ miscella purifier

Technical Field

The invention relates to the field of corn germ processing, in particular to a corn germ mixed oil purification device.

Background

At present, corn germ oil is processed by a leaching method, mixed oil obtained in leaching production usually contains more germ dust, sugar, protein and other impurities, most of solid impurities are usually removed by a simple filtering means in production, the sugar, the colloid, the protein and other impurities which are in a mutual soluble state with the mixed oil cannot be removed, and after the impurities are subjected to high temperature in subsequent evaporation operation, irreversible dark color pigments can be produced and solidified in grease and can be coked and carbonized in equipment, so that the utilization efficiency of the equipment and the quality of products are seriously influenced.

Disclosure of Invention

The invention aims to provide a corn germ mixed oil purification device which is simple in structure, safe and reliable and produces mixed oil with few impurities.

In order to achieve the above object, the present invention provides a corn germ oil mixture purification apparatus, comprising: the system comprises a hydrocyclone separator, a wire mesh filter, a time-delay precipitator and a salting-out precipitator which are connected in sequence, wherein the bottoms of the hydrocyclone separator, the wire mesh filter and the time-delay precipitator are provided with slag outlets; the silk screen filter is connected with an external flushing liquid pipe; the salting-out settler is connected with an external brine tank.

Further, the device also comprises a feeding pump which is connected with the inlet of the hydrocyclone.

Further, the salt precipitation device also comprises a cooking pot which is connected with the salting-out settler.

Furthermore, the slag discharge ports are connected with leachers.

Further, the hydrocyclone separator is a unpowered separator.

Further, the wire mesh filter is a tangential feed self-cleaning wire mesh filter.

Further, the salting-out settler is divided into two sets which are connected in series.

Through the technical scheme, the invention has the beneficial effects that:

1. the mixed oil is subjected to multistage filtration, precipitation and brine washing, and the purified final product has extremely high purity and quality;

2. the waste liquid is discharged and is steamed, so that the waste liquid can be directly discharged without pollution and potential safety hazard;

3. the whole production process is sealed and has no leakage, a power system is not required to be configured, and the service time of subsequent production equipment can be delayed by 50%.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

the corresponding part names indicated by the numbers in the figures:

10. hydrocyclone 11, feeding pump 20, silk screen filter 30, time delay precipitator 40, salting-out precipitator 41, brine tank 42 and cooking tank

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

Referring to fig. 1, the present invention provides a corn germ oil mixture purifying apparatus, comprising: the system comprises a hydrocyclone 10, a wire mesh filter 20, a time-delay precipitator 30 and a salting-out precipitator 40 which are connected in sequence, wherein the bottoms of the hydrocyclone 10, the wire mesh filter 20 and the time-delay precipitator 30 are provided with slag outlets; the wire mesh filter 20 is connected with an external flushing liquid pipe; the salting-out settler 40 is connected to an external brine tank 41.

An inlet of the hydrocyclone 10 is connected with a concentrated mixed oil pump, an outlet of the hydrocyclone is connected with an inlet of the wire mesh filter 20, and a bottom slag discharge port of the hydrocyclone is connected with a leacher and used for removing large-particle solid impurities in the mixed oil; an inlet of the wire mesh filter 20 is connected with an outlet of the hydrocyclone 10, an outlet of the wire mesh filter is connected with an inlet of the time delay precipitator 30, and a bottom slag discharge hole of the wire mesh filter is connected with the leacher and used for removing medium and small particle solid impurities in the mixed oil; the inlet of the time-delay precipitator 30 is connected with the outlet of the silk screen filter 20, the outlet is connected with the inlet of the salting-out precipitator 40, and the bottom slag discharge port is connected with the leacher and is used for precipitating solid impurities in the mixture; the inlet of the salting-out precipitator 40 is connected with the outlet of the time-delay precipitator 30, and the outlet is connected with the inlet of the salting-out separator and is used for removing hydrophilic organic impurities (such as sugar, colloid, protein and the like) in the mixed oil.

The hydrocyclone 10 is used for separating and removing large-particle solid impurities in the mixed oil through centrifugal force; the wire mesh filter 20 is used for removing medium and small particle solid impurities in the mixed oil through wire mesh filtration and separation; the time delay precipitator 30 is responsible for providing a settling space and separating solid impurities by utilizing specific gravity difference; the salting-out settler 40 is filled with brine, the specific gravity of the mixed oil is small and rises rapidly in the brine, the specific gravity of the solid impurities is large and rises slowly in the brine, so that the solid impurities are separated from the mixed oil, meanwhile, the hydrophilic impurities in the mixed oil are separated out from the mixed oil after absorbing water, and the obtained purified mixed oil automatically flows into a next external evaporation system (not shown).

The working principle of the invention is as follows:

the mixed oil obtained in the previous working procedure is sent to an inlet of a hydrocyclone 10 by a feeding pump 11, the mixed oil rotates along a shell under the rectification of the hydrocyclone shell, the mixed oil moves upwards along the center after reaching the bottom of the hydrocyclone by utilizing the specific gravity difference of the mixed oil and solid impurities, and the solid impurities sink to the bottom of the hydrocyclone and are periodically discharged; the mixed oil with large particles and solid impurities removed enters a wire mesh filter 20, a filtering wire mesh is arranged in the wire mesh filter 20, the mixed oil passes through the wire mesh through wire mesh gaps to complete filtering and is discharged from an outlet of a wire mesh mixer, the small and medium particles and solid impurities are intercepted by the wire mesh to form a filter cake, and the mixed oil is further purified. The mixed oil is fed tangentially to rotate in the filter, the rotating material flow is used for scouring the filtering wire mesh, the filtering speed of the equipment is kept not to be reduced, and filtered solid impurities are discharged from the bottom; the mixed oil with the solid impurities of the medium and small particles removed enters a delay precipitator 30, the interior of the delay precipitator 30 is divided into grids, the flow of the mixed oil is prolonged, so that part of the solid impurities have sufficient time to precipitate, the precipitated mixed oil is discharged from the middle upper part of the delay precipitator, and the precipitated solid impurities are discharged to a leacher; the mixed oil after delayed precipitation finally enters a salting-out settling tank 40, and the salting-out settling tank is provided with two salting-out settling tanks which are connected in series for use. The mixed oil enters from the bottom of the salting-out settling tank 40, the mixed oil passes through the brine layer and then overflows from the top and then enters the second salting-out settling tank 40, the mixed oil passes through the brine layer again and then overflows from the top and enters an external evaporation system, and meanwhile, free gas brought by the mixed oil is discharged into a condenser through a pipeline. The mixed oil is washed by brine twice in the salting-out settling tank 40, so that solid impurities in the mixed oil can be removed completely, hydrophilic impurities (gum impurities, sugar, protein and the like) in the mixed oil can absorb water and are separated out from the mixed oil, the separated hydrophilic impurities and the washed solid impurities are collected by a built-in slag receiving disc and then are discharged into the cooking tank 42 at regular time to remove a solvent, and the impurities after being dissolved out can be discharged safely. The brine used in the salting-out settling tank 40 is automatically added after being prepared by the brine tank 41.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A corn germ oil mixture purifier, characterized by, includes: the system comprises a hydrocyclone (10), a wire mesh filter (20), a time-delay precipitator (30) and a salting-out precipitator (40) which are connected in sequence, wherein the bottoms of the hydrocyclone (10), the wire mesh filter (20) and the time-delay precipitator (30) are provided with slag outlets; the silk screen filter (20) is connected with an external flushing liquid pipe; the salting-out settler (40) is connected to an external brine tank (41).

2. The corn germ oil mixture purification apparatus as claimed in claim 1, further comprising a feeding pump (11) connected to an inlet of the hydrocyclone (10).

3. The corn germ oil purifier as claimed in claim 1, further comprising a digester (42) connected to the salting-out settler (40).

4. The corn germ oil mixture purification device of claim 1, wherein a leacher is connected to each of the deslagging ports.

5. The corn germ oil blend purification device of claim 1, wherein the hydrocyclone (10) is a non-powered separator.

6. The corn germ oil blend purification apparatus of claim 1, wherein the wire mesh filter (20) is a tangential feed self-cleaning wire mesh filter.

7. The corn germ oil purifier as claimed in claim 1, wherein the salting-out settling vessel (40) comprises two vessels connected in series.