WO2014037564A1 - Method and device for separating sunflower extraction meal particles into at least one fraction with a high protein content and into at least one fraction with a high cellulose content - Google Patents

Description

Method and apparatus for separating particles

Sunflower extraction meal in at least one fraction with a high protein content and in at least one fraction with a high cellulose content

The present invention relates to a method and a

Device for separating particles from sunflower extraction meal into at least one fraction with a high protein content and at least one fraction with a high cellulose content.

Extraction meal from the production of sunflower oil is produced in high quantities and can be used with difficulty without further treatment. Such sunflower extraction meal usually has a relatively low protein content of 30-35% by weight. Here and below is understood by wt .-% of the percentage by weight based on dry matter. Of the

Crude fiber or cellulose content is about 28 wt .-%, the proportion of cellulose is considered to be of little value in terms of feed conversion. The proportions of crude fiber or protein may vary, especially in peeled

Sunflower extraction meal, the proportion of crude fibers can be considerably smaller and the proportion of protein correspondingly greater. The humidity is normally between 12 and 14 o

o ·

From EP 1 372 409 B1 is a method and an installation for

Preparation of such extraction meal from sunflower seed known for animal nutrition. There are two factions of

Produced shot components, with crushing and

Sieve steps, followed by a separation by air classifier are performed. A first fraction should contain a higher proportion of crude protein than the other fraction. Accordingly, the fraction with low crude protein content has a higher content of cellulose or crude fibers. These raw fibers can be digested with a liquor digestion process to their digestibility or their

Increase energy value.

It has been shown that such a method does not allow very efficient separation of cellulose and protein.

In particular, the second fraction still has a relatively high proportion of proteins which are produced together with the crude fibers.

It is an object of the invention to overcome the disadvantages of the prior art. In particular, a method and an apparatus for the energy-efficient separation of particles from sunflower extraction meal in at least one fraction with a high protein content and in at least one fraction with a high cellulose content to be provided, wherein the protein content of the protein-containing fraction

preferably greater than 40 wt .-% is.

This task is carried out by the independent

Claims defined method and device solved. Other embodiments will be apparent from the dependent

Claims.

A process according to the invention for separating particles from sunflower extraction meal into at least one fraction having a high protein content and into at least one fraction having a high cellulose content comprises the steps of dissolving and dry precipitation. For dry deposition a sieve is used. The steps become loose and dry

Depositing preferably carried out in two or more stages, wherein in each case the subsequent step of the dissolving those particles are supplied, which do not fall through the sieve in particular one of the preceding stage. In particular, those particles that fall through the sieve to the bottom are assigned directly to the fraction with high protein content. The entire process can be carried out without wet separation of fractions, preferably completely dry,

especially without adding water.

If for the step of depositing two sieves with

Different mesh sizes are used, these mesh sizes can be adjusted so that, for example, the rejection can be excreted directly. This proportion is not supplied to the subsequent step of dissolving. At the

Abutment is a particle with a very low protein content and correspondingly high cellulose content.

The particles not fallen through the sieve can optionally be checked for their protein content. For example, an analysis by means of NIR rapid analyzer (near infrared

spectroscopy) possible. For this purpose, samples can be taken and fed to the analysis. By means of such a check of the protein content, it is possible to prevent the subsequent steps for loosening and dry deposition being unnecessarily stressed or used. The fact that the entire process can be carried out dry, ie without addition of water, a subsequent drying of the two fractions is no longer necessary. This fact is particularly relevant in terms of the energy balance.

The step of dry separation can be done excluding air classifiers. It has been found that the difference in inertial force and flow resistance between proteinaceous and fibrous parts is low and thus efficient use of air classifiers is made more difficult.

Furthermore, on one can provide for one

Air classifier required air to be dispensed with. Accordingly, the power consumption can be reduced. It also eliminates the costly cleaning of appropriate filters.

The step of dry deposition can by means of a

Plansichters done. It goes without saying that, depending on the quantity to be processed, one or more plansifters can be used in parallel at a time. Plan sifters have that

Advantage that the heavier proteinaceous particles in the

Lowering the sieve bed and floating the lighter cellulosic parts in the particle flow on top. Thus, the separation is done not only by the mesh size of the screen but also by the weight of the particles. It is also conceivable that the deposition by means of a shell separator with

Vibrating screens.

The solving step may be one or more

Impact impact mills and / or one or more

Corrugated roller chairs done. Impact mills and

Corrugated roller chairs have the advantage that by suitable

Parameter settings allows a particularly gentle treatment of the particles of sunflower extraction meal. In particular, by a suitable adjustment, a grinding of the particles can be prevented.

It has been shown that it is advantageous if, during dissolution, the particles are beaten and / or sheared and / or rubbed, but essentially not cut and / or ground. By hitting, shearing or rubbing, the

proteinaceous layers better of the cellulosic

Peel peel without unnecessarily reducing the cellulosic layers. A subsequent separation is thereby simplified. In a impact mill, the particles are beaten and sheared, while the particles in a

Riffelwalzenstuhl rather sheared and rubbed.

When dissolving the particles are preferably treated only briefly, so that not necessarily a homogeneity of

Particle sizes are created. It goes without saying that the grain size of the sunflower seeds vary depending on soil, climate, region and thus the particle size of the sunflower extraction meal is not constant. Likewise, the

previous processing has an influence on the size of the

Particle. Accordingly, the parameters, in particular the hole size of the sieve impact mill of the first

Step of solving to be adjusted. A short residence time ensures that the particles are not oversized, but only beaten and / or sheared and / or rubbed.

Preferably, when dissolving the particles, in particular the particles with shell parts are not frayed. Thus, subsequent sieving can be done more efficiently. The danger of

Clogging of Siebmaschen is thereby significantly reduced. The fraying of the particles can be substantially prevented if the process parameters are set so that the

Residence time is short and a grinding is prevented.

For the first step of loosening, a beater mill can be used. It has been shown that preferably vertical impact impact mills are used. However, it is also conceivable that horizontal impact mills are used.

As already mentioned above, a impact impact mill allows, in particular, a beating of the particles. Protein parts which adhere to shell parts by the introduction of Impact energy released from the shell parts and can be separated by the subsequent step of dry deposition.

For the second and subsequent steps of debonding, one or more corrugating roll chairs may be used.

Corrugated roller chairs are characterized by the fact that the particles are rubbed between the rollers, which is particularly at

Sunflower extraction meal favoring the dissolution of proteinaceous particles. Another advantage of

Corrugated roller chairs is that the gentle loosening prevents the fibrillation and creates a uniform and defined granulation, which in the subsequent dry deposition, the separation into protein-rich and fiber-rich parts is facilitated. Alternatively, however, could also be a

Impact crusher are used.

 However, it is also conceivable that smooth rolls are used without corrugation.

For the last step of the solution can turn one

Impact crusher are used. In particular, if in this last step of the dissolution of the repulsion of the previous steps of the dry separation again merged, mixed and fed to the impact mill, in a subsequent dry deposition of the protein content of

Be reduced again fraction with high cellulose content. In particular, in a subsequent production of pellets for incinerators, it is advantageous if the protein content is very low, preferably less than 12 wt .-% is.

Before the first step of the dissolution, a first step of the dry separation with a planiflicer with in particular only a mesh size of 250-400 μm, preferably of 270-355 μm, particularly preferably from 290 to 310 μιη be executed. Such a first dry deposition allows even before

Applying mechanical energy is a separation of

proteinaceous particles. It has been found that in most cases protein-containing particles have been released from the cellulose-containing shell parts of the sunflower extraction meal, which can be easily separated. These

According to experience, protein-containing particles are already very small so that they can be easily separated with the mentioned mesh size. The rejection of this first deposition is fed to the next step of the dissolution so that more adherent protein parts are dissolved. It goes without saying that the sunflower extraction meal must already be delivered in an appropriate form. For example, the first dry separation may be preceded by a tuber breaker which separates together adhering particles.

For a second step of the dry separation, a plan sifter with a first mesh size of 850-1500 μm, preferably of 1250-1300 μm, particularly preferably of 1050-1150 μm, and a second mesh size of 250-400 μm, preferably of 270-355 μιτι, particularly preferably from 290-310 μιη be used.

For a third step of dry separation, a plansifter with a first mesh size of 630-1100 μιτι, preferably 735-980 μιτι, more preferably from 840-860 μιτι, and a second mesh size of 250-400 μιτι, preferably 270-355 μιη, particularly preferably from 290-310 μιη be used.

For a fourth step of the dry separation, a plan sifter with a first mesh size of 530-850 μm, preferably of 575-745 μm, particularly preferably of 620-640 μm, and a second mesh size of 200-400 μιτι, preferably from 245-355 μιη, more preferably from 290-310 μιη be used.

For a fifth step of the dry separation, a plansifter with a first mesh size of 400-630 μιτι, preferably of 460-585 μιτι, more preferably of 520-540 μιτι, and a second mesh size of 200-300 μιτι, preferably from 200-255 μιη, particularly preferably be used by 200-210 μιη.

For a sixth step of the dry separation, a plansifter with a first mesh size of 300-500 μιτι, preferably from 350-450 μιτι, more preferably from 390-410 μιτι, and a second mesh size of 200-300 μιτι, preferably from 200-255 μιη, particularly preferably be used by 200-210 μιη.

Experience has shown that the remaining particles after the sixth step, only a small proportion of protein, so that a renewed dissolution and deposition no longer profitable. So it is usually not worth it anymore, due to the low

Protein yield the energy and capital costs for more

To spend steps. Of course, it is conceivable that further steps are useful for specific applications. Likewise, it is also conceivable that certain crops can be broken earlier and not go through all six steps. In order to be able to carry out such an assessment, the plan viewers are preferably at the outputs

Control means arranged, which evaluate, for example, by means of NIR rapid analyzer (near infrared spectroscopy) accordingly taken samples.

For the last step of the dry separation, in particular after the dissolution of the collected jets of the previous steps by a impact crusher, a plan sifter with three nominal mesh sizes of 850 μιτι, 500 μιη and 200 microns are used. With the help of this planifier, the protein content of the cellulosic fraction can be significantly reduced again by again small amounts of protein-containing

Particles are excreted. Although according to experience no high protein concentration can be achieved, the residual material can still be processed into animal feed.

The impact crusher of the last step of disengagement may have the same settings as that impact impact mill of the first disengaging step. It goes without saying, however, that in the last step of loosening less material has to be processed than in the first step, so that the impact crusher can be dimensioned correspondingly smaller or, for example, can only be simply designed or even operated only batchwise, so that the wear,

in particular the racket wear is reduced. in the

In contrast, in the first step of the release several impact mills can be operated in parallel.

A plant according to the invention for separating particles from sunflower extraction meal into at least one fraction with a high protein content and into at least one fraction with a high cellulose content, in particular with a method as described above, has several groups comprising a solution unit and a dry separation unit. In particular, the plant has no means for sprinkling and / or wetting of the particles and no water separator. The fact that the plant processes the sunflower extraction meal dry, that is without addition of water, can be a following

energy-intensive drying of the resulting fractions omitted. For example, the system can do without air separators altogether. By dispensing with air classifiers, no pretreated air must be provided. The system can thus be operated cheaper.

Before the first group of solution unit and dry

Abscheideinheit can be an additional dry separation unit for coarse separation, in particular a Plansichter with a mesh size of 250-400 μιτι, preferably from 270-355 μιτι, more preferably from 290-310 μιη be arranged. By means of such a separation unit, protein-containing particles which have already been dissolved in advance, for example during transport of the cellulose-containing shell particles, can easily be separated off. The rejection of this first separation unit is then fed to the first solution unit in order to dissolve further, still adhering protein parts. If the sunflower extraction meal has larger lumps, for example, the plant may be preceded by a tuber breaker.

The first group can be a solution unit in the form of a

Impact impact mill include. A impact mill allows the introduction of kinetic energy by beating the

Bat on the particles. Protein parts which adhere to shell parts are thereby detached from the shell parts and can be separated in a subsequent separation unit.

Likewise, the last group may comprise a solution unit in the form of a impact impact mill. This impact mill will

for example, operated with the same parameters as the

Impact impact mill of the first group. The last group is preferably supplied with the rejection of the preceding separation units, so that even residual amounts of proteins can be eliminated from the cellulosic fraction. It is It is also conceivable that a corrugating roller mill and a fine impact mill be used instead of a impact mill.

On the basis of figures, which represent only embodiments, the invention will be explained in more detail below. Show it :

FIG. 1 shows a schematic representation of a first part of a system according to the invention,

Figure 2: a schematic representation of the second part of

 Plant according to FIG. 1,

FIG. 3 shows a method according to the invention in the form of a

 Flowchart.

Figures 1 and 2 show a schematic representation of an inventive system 20, divided into a first part in Figure 1 and a second part in Figure 2. At the entrance 21 sunflower extraction meal is delivered. It goes without saying that the system 20, for example, can still be preceded by appropriate storage silos, dryers, admixers, cleaning and weighing stations. Usually, sunflower extraction meal with a moisture content of 10-11 wt .-% is delivered, which can be easily processed in the system. The sunflower extraction meal passes from the entrance 21 to an optional tuber breaker 22, which ensures that the meal particles are separated and tubers are dissolved. Subsequently, the particles enter a first Plansichter 1, which excretes small protein-containing parts Sil. The reject ABl of plan sifter 1 becomes a following

Impact impact mill 11 supplied. This first Plansichter 1 has a mesh size of 300 μιη. Optionally, a sample can be taken at the exit of the first planiflicer in order to determine the protein content by means of a

To measure control means, for example in the form of a NIR rapid analyzer (near infrared spectroscopy) and to accordingly the further course of the small parts to

determine. The small parts are either excreted as proteinaceous parts Sil or slammed shut the ABI.

It goes without saying that the number of plansifter 1 is selected according to the amount of sunflower extraction meal to be processed and optionally several

Plansichter 1 can be operated in parallel.

In the impact mill 11, the particles are struck by the repulsion ABl. In this case, the impact mill 11 is designed so that the particles only a very short residence time in the

Impact impact mill remain so that it does not lead to a homogeneous distribution of particle sizes.

Starting from the impact mill 11, the particles are fed to a second Plansichter 2, which has two different mesh sizes, 1100 μιη and 300 μιη. Both the abutment AB2 and the smallest parts SI2 are discharged. The smallest parts SI2 are proteinaceous parts. The

Impact impact mill 11 and Plansichter 1 form a first group of solution unit and Abscheideinheit.

The center fraction MF2 of the second plan sifter 2 is fed to another solution unit in the form of a corrugating roll chair 12. Starting from the corrugating roller 12, the particles are fed to a third Plansichter 3, which has two different mesh sizes, 850 μιη and 300 μιη. Both the discharge AB3 and the smallest parts SI3 are again discharged. The smallest parts SI3 are proteinaceous parts. Of the

Corrugated roller mill 12 and Plansichter 3 form a second group of solution unit and Abscheideinheit.

The center fraction MF3 of the third plan sifter 3 is fed to another solution unit in the form of a corrugating roll chair 13.

Starting from the corrugating roller 13, the particles are fed to a fourth Plansichter 4, which has two different mesh sizes, 630 μιη and 300 μιη. Both the abutment AB4 and the smallest parts SI4 are again dissipated. The smallest parts SI4 are proteinaceous parts. Of the

Ripple roller chair 13 and the Plansichter 4 form a third group of solution unit and Abscheideinheit.

The center fraction MF4 of the fourth plan sifter 4 is fed to a further solution unit in the form of a corrugating roll chair 14.

Starting from the Riffelwalzenstuhl 14, the particles are fed to a fifth Plansichter 5, which has two different mesh sizes, 530 μιη and 200 μιη. Both the abutment AB5 and the smallest parts SI5 are again discharged. The smallest parts SI5 are proteinaceous parts. Of the

Corrugated roller chair 14 and the Plansichter 5 form a fourth group of solution unit and Abscheideinheit. The center fraction MF5 of the fifth plan sifter 5 is fed to another solution unit in the form of a corrugating roll chair 15.

Starting from the corrugating roller 15, the particles are fed to a sixth Plansichter 6, which has two different mesh sizes, 400 μιη and 200 μιη. Both the abutment AB6 and the smallest parts SI6 are discharged. The smallest parts SI6 are proteinaceous parts. The corrugating roller 15 and the Plansichter 6 form a fifth group of

Solution unit and separation unit.

The middle fraction MF6 now corresponds to a fraction with

low protein content SIII. The Abstoß AB2 to AB6 is brought together and fed to another solution unit in the form of a impact mill 16. Since the kickoff

Single fractions AB2 to AB6 of the previous plan viewers

exists, the mixture is mixed before the impact mill 16 with a paddle screw to obtain the most homogeneous distribution of the particles.

Starting from the impact impact mill 16, the particles are fed to a seventh Plansichter 7, which has three different mesh sizes, 850 μιτι, 500 μιη and 200 μιη. The rejection now contains only cellulosic parts with a very low protein content. This fraction Sil can now

for example, be processed into combustible pellets. The fractions from the individual screening stages are now based on samples with a control agent 9 in the form of a NIR rapid analyzer (near infrared spectroscopy) on their

Protein content checked and classified as protein-containing fraction SI, as low-protein fraction SIII or cellulosic fraction Sil accordingly. The impact impact mill 16 and the plansifter 7 form a sixth group of solution unit and Abscheideinheit.

The high protein fractions Sil to SI6 from the

individual groups are now using the high protein

Fraction SI from Plansichter 7 assembled and mixed with a paddle screw to obtain the most homogeneous distribution of the particles. Accordingly, the

Middle fraction MF6 from Plansichter 6 with the low

protein-containing fraction SIII summarized by Plansichter 7 and mixed with a paddle screw to obtain the most homogeneous distribution of the particles. The individual fractions SI, Sil, SIII can now according to their

Purpose further processed, for example, be pressed into pellets.

It goes without saying that depending on the nature of the starting material, an additional group of solution unit and Abscheideinheit inserted or a group can be omitted. For this reason, each plan sifter on

Output of the individual screening stages a control means 9,

For example, a NIR rapid analyzer (near infrared spectroscopy), so that in each case the protein content of the individual fractions can be measured by means of samples. Depending on the protein content can then be decided whether more groups are needed.

FIG. 3 shows a method according to the invention in the form of a flow chart. Sunflower extraction meal is delivered at the entrance 21 and in a first step of the

Separating AI into a repulsion ABl and a protein-containing fraction Sil split. For this purpose, a Plansichter be used with a mesh size of 300 μιη. The kick ABl is treated in a solution step LI, so that dissolve adhering to the cellulose-containing particles proteinaceous particles.

In a second step of the separation A2, the particles are divided into a discharge AB2, a protein-containing fraction SI2 and a middle fraction MF2. A Plansichter with two mesh sizes of 1100 μιη and 300 μιη can be used. The middle fraction becomes a second solution step L2

fed, which in turn dissolves the proteinaceous particles of the cellulose-containing particles. This can be a

Corrugated roller chair can be used.

In a third, fourth and fifth step of depositing A3, A4, A5, each with at least one Plansichter with two

Mesh sizes of 850 μιτι, 630 μιη and 530 μιτι, or with 300 μιτι, 300 μιη and 200 μιη the particles are in turn one each

Abutment AB3, AB4, AB5, a protein-containing fraction SI3, SI4, SI5 and deposited in a mid-fraction MF3, MF4, MF5. The middle fraction MF3, MF4, MF5 will each be the next

Solution step L3, L4, L5 supplied. At least one corrugating roll chair is used in each case.

A sixth step of the deposition A6 is again carried out with a Plansichter, the mesh sizes are 400 μιη and 200 μιη. The middle fraction MF6 is directly as low

proteinaceous fraction SIII and excreted. Also the

proteinaceous fraction SI6 is excreted. The AB6 kickoff will be with the AB2-AB5 kickers of the earlier

Abscheidungsgeschritten A2-A5 combined and fed to a further dissolution step L6. This is again a impact impact mill. This is followed by a final step of depositing A7 with a

Planifter with mesh sizes of 850 μιτι, 500 μιη and 200 μιη. The rejection is directly the cellulosic fraction Sil

fed. The protein content of this cellulosic fraction is so low, in particular less than 12 wt .-%, that from this example heating pellets can be produced. The two middle fractions and the smallest parts can be on their

Protein content can be analyzed, for which purpose a control means 9 in the form of a NIR rapid analyzer (near infrared spectroscopy) can be used. According to the measured protein content, these can be assigned to a high-protein-containing fraction SI or a low-protein fraction SIII.

For the purpose of solving rotating and profiled or not profiled discs are conceivable.

A fraction (SI) with a high protein content exhibits

preferably a protein content of greater than 40 wt .-% to. A fraction (Sil) with a high cellulose content preferably has a protein content of less than 12% by weight.

Claims

claims A process for separating particles from sunflower extraction meal into at least one fraction (SI) having a high protein content and at least one fraction (Sil) having a high cellulose content, comprising  Steps Solve (LI, L2, L3, L4, L5, L6) and dry  Depositing (AI, A2, A3, A4, A5, A6, A7), the steps releasing (LI, L2, L3, L4, L5, L6) and dry depositing (AI, A2, A3, A4, A5, A6, A7) are preferably carried out in two or more stages, wherein for the dry deposition (AI, A2, A3, A4, A5, A6, A7) a sieve is used and in each case the subsequent step of the release (LI, L2, L3, L4, L5, L6) are supplied to those particles (AB1, AB2, AB3, AB4, AB5, AB6) which do not fall through the sieve and those particles (Sil, SI2, SI3, SI4, SI5, SI6) passing through the sieve fall of the fraction (SI) associated with high protein content. 2. The method according to claim 1, characterized in that the step of dry deposition (AI, A2, A3, A4, A5, A6, A7) takes place excluding air classifiers. 3. The method according to claim 1 or 2, characterized in that the step of dry deposition (AI, A2, A3, A4, A5, A6, A7) by Plansichtern (1, 2, 3, 4, 5, 6, 7) he follows . 4. The method according to any one of claims 1 to 3, characterized in that the step of loosening (LI, L2, L3, L4, L5, L6) takes place by means of a impact impact mill (11, 16) or a corrugating roll mill (12, 13, 14, 15). 5. The method according to any one of claims 1 to 4, characterized  characterized in that when dissolved (LI, L2, L3, L4, L5, L6) the particles are beaten and / or sheared and / or  grated, but essentially not cut and / or not ground. 6. The method according to any one of claims 1 to 5, characterized  characterized in that when dissolving the particles (LI, L2, L3, L4, L5, L6) are treated only for a short time, so that no homogeneity of the particle sizes. 7. The method according to any one of claims 1 to 6, characterized  characterized in that when dissolving (LI, L2, L3, L4, L5, L6) the particles, in particular particles with shell parts, are substantially not frayed. 8. The method according to any one of claims 1 to 7, characterized  in that for the first step of the release (LI) a impact impact mill (11) is used. 9. The method according to any one of claims 1 to 8, characterized  characterized in that for the second and subsequent  Steps of solving (L2, L3, L4, L5) one or more  Corrugated roller chairs are used. 10. The method according to any one of claims 1 to 9, characterized  in that a crash impact mill (16) is used for the last step of loosening (L6). 11. The method according to any one of claims 1 to 10, characterized characterized in that, prior to the first step of loosening (LI), a first step of dry separation (AI) with a plan sifter (1), in particular with only one mesh size of 250-400 μιη, preferably from 270-355 μιη, especially preferably from 290-310 μιη is running. Method according to one of claims 1 to 11, characterized in that for a second step of dry separation (A2) a Plansichter (2) with a first mesh of 850-1500 μιτι, preferably 1250 1300 μιη, more preferably from 1050-1150 μιτι, and a second mesh size of 250-400 μιτι, preferably 270-355 μιη , more preferably 290-310 microns is used, and / or that for a third step of dry separation (A3) a Plansichter (3) with a first mesh size of 630-1100 μιη, preferably from 735-980 μιτι, more preferably from 840-860 μιτι, and a second mesh size of 250-400 μιτι, preferably from 270-355 μιτι, particularly preferably from 290-310 microns is used, and / or that for a fourth step of dry separation (A4) a Plansichter (4) with a first mesh size of 530-850 μιη, preferably from 575-745 μιτι, especially preferably of 620-640 μιτι, and a second mesh size of 200-400 μιτι, preferably of 245-355 μιη, particularly preferably from 290-310 μιη is used, and / or that for a fifth step of dry separation (A5) a Plansichter (5) with a first mesh size of 400-630 μιη, preferably from 460-585 μιτι, especially preferably from 520-540 μιτι, and a second mesh size of 200-300 μιτι, preferably from 200-255 μιη, more preferably from 200-210 μιη is used, and / or that for a sixth step of dry separation (A6) a Plansichter (6) with a first mesh size of 300-500 μιη, preferably from 350-450 μιτι, especially preferably from 390-410 μιτι, and a second mesh size from 200-300 μιτι, preferably from 200-255 μιτι, particularly preferably from 200-210 μιη is used, and / or in that for the last step of dry separation (A7) a plan sifter (A7) with three nominal mesh sizes of 850 μm, 500 μm and 200 μm is used. Plant (20) for separating particles from sunflower extraction meal into at least one fraction (SI) with a high protein content and at least one fraction (Sil) with a high cellulose content, the Device comprising a plurality of groups comprising a solution unit and a dry separation unit, wherein the Device in particular no means for sprinkling of the particles and no water separator has. Plant (20) according to claim 13, characterized in that in front of the first group a dry separation unit for coarse separation, in particular a Plansichter (1) with a mesh size of 250-400 μιτι, preferably from 270-355 μιη, particularly preferably from 290-310 μιη is arranged. Plant (20) according to any one of claims 18 to 20, characterized in that the first group comprises a solution unit in the form of a impact mill (11), and / or that the last group comprises a solution unit in the form of a impact mill (16).