CN114043758A - Integrated production device and process for cold-pressed flaxseed oil - Google Patents

Abstract

The invention discloses an integrated production device and process of cold-pressed linseed oil, wherein the device comprises a shell, a primary pressing disc, a secondary pressing disc and a flow-through pipe, the primary pressing disc and the secondary pressing disc are arranged in the shell, the primary pressing disc and the secondary pressing disc are communicated through the flow-through pipe, a feed inlet, a primary oil outlet and a secondary oil outlet are respectively arranged on the side wall of the shell, the primary pressing disc is connected with the feed inlet and the primary oil outlet, and the secondary pressing disc is connected with the secondary oil outlet. The flaxseed is thrown the first level from the feed inlet and is squeezed the dish, the first level squeezes the dish and squeezes first oil, outside first oil-out eduction gear, the flaxseed after squeezing concentrates on the second level from the overflow pipe and squeezes the dish in, then after adjusting the flaxseed gesture, once again experience squeezes the process, fully squeeze out oil, oil is after second level oil-out exhaustion, pour into washing water from the feed inlet, discharge all wastes material from second level oil-out, during the discharge, discharge respectively to different positions through the lateral pipeline.

Description

Integrated production device and process for cold-pressed flaxseed oil

Technical Field

The invention relates to the technical field of cold-pressed flaxseed, in particular to an integrated production device and process for cold-pressed flaxseed oil.

Background

The cold pressing is a manufacturing process for producing oil, the cold pressing method is high in requirement, the common cold pressing method requires processing in an environment lower than 60 ℃, nutrient components are completely reserved, the oil yield of the cold pressing method is only half of that of the hot pressing method, so that most of cold pressing oil is about 50% higher than that of hot pressing oil in price, the cold pressing oil can be stored for a long time because the cold pressing oil is not damaged and does not need to be added with additives generally, the market value is relatively high, the color of the cold pressing oil is clear, and the taste is relatively light.

In the prior art, cold-pressed linseed oil is produced by adopting a cold-pressed oil press mostly during production, and multiple machines adopt an independent operation mode, so that multiple people are required to cooperate to operate, and the efficiency is low.

The main defects of the cold pressing process of the flaxseeds are that the oil yield is low, a large amount of oil is still remained in flaxseed mud cakes and is treated as cold pressing waste, and waste is caused, so the low oil yield is a main problem for restricting the cold pressing process.

Disclosure of Invention

The invention aims to provide an integrated production device and process for cold-pressed linseed oil, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a cold press linseed oil integrated form apparatus for producing, includes shell body, first grade and squeezes dish, second grade and squeezes dish and overflow pipe, sets up first grade and squeezes dish and second grade in the shell body, squeezes through overflow pipe intercommunication between dish and the second grade and squeeze the dish for the first grade, sets up feed inlet, first grade oil-out and second grade oil-out on the shell body lateral wall respectively, and feed inlet, first grade oil-out are squeezed to the first grade, and second grade squeezes the dish and connects the second grade oil-out. The flaxseed is thrown the first level from the feed inlet and is squeezed the dish, the first level squeezes the dish and squeezes first oil, outside first oil-out eduction gear, the flaxseed after squeezing concentrates on the second level from the overflow pipe and squeezes the dish in, then after adjusting the flaxseed gesture, once again experience squeezes the process, fully squeeze out oil, oil is after second level oil-out exhaustion, pour into washing water from the feed inlet, discharge all wastes material from second level oil-out, during the discharge, discharge respectively to different positions through the lateral pipeline.

Further, second grade press disc includes the pressure head, chassis and picture peg, the pressure head is located directly over the chassis, the silo is put on chassis upper portion division, the oil outlet is seted up to chassis bottom side, the inside manifold that sets up in chassis, put between silo and the manifold through a plurality of vertical blanking passageways intercommunication, the overflow pipe will discharge the flax seed that experiences after first grade press disc squeezes to putting the silo in, the blanking passageway is the flat cross-section, the picture peg sets up at the pressure head lower surface, picture peg quantity is the same with blanking passageway quantity and is located the blanking passageway directly over, picture peg cross sectional shape is the same with blanking passageway sectional shape, the oil outlet is connected with the second grade oil-out.

Flaxseeds squeezed by the first-stage squeezing disc become a mud cake shape, the mud cake is scattered and poured into the material placing groove, flaxseed cakes in the material placing groove sequentially slide into the material dropping channel one by one due to vibration, the thickness of the material dropping channel is at least larger than that of the flaxseed cakes, the thickness of the material dropping channel is also smaller than 1.3 times of the statistical average thickness of the flaxseed cakes squeezed by the first-stage squeezing disc, the flaxseed cakes in the material dropping channel can be tightly filled, the inserting plate descends along with the pressure head, the inserting plate is inserted into each material dropping channel and squeezes the flaxseed cakes in the material dropping channel, the squeezing direction is along the other vertical direction of the flaxseed cakes, the flaxseeds can be subjected to a full oil squeezing process to finally become a rod-shaped flaxseed, squeezed secondary oil is concentrated in the collecting cavity and then is discharged out of the device through the oil outlet and the second-stage oil outlet and is collected.

Furthermore, the top of the blanking channel is provided with a posture correcting inclined plane which extends and inclines from the length edge of the section of the blanking channel. The posture-correcting inclined plane assists the flaxseed cake to adjust the posture of the flaxseed cake, and the flaxseed cake can be poured into the blanking channel more easily and then falls vertically.

And in the process that the flaxseed cakes in the material placing groove are poured into the blanking channel, gas is blown into the secondary oil outlet from the outside. The flaxseed cake is obliquely poured at the posture-correcting inclined plane, at the moment, the ascending airflow from bottom to top blows the oblique flaxseed cake, so that one end of the flaxseed cake, which is positioned at a high position, is slightly lifted so that the airflow ascends, the flaxseed cake is supported into a vertical posture to fall into the blanking channel and then is sequentially and vertically distributed, after all flaxseeds in the material placing channel fall into the blanking channel, the external gas stops injecting, the secondary oil outlet is connected with a structure for collecting oil, then the pressure head drives the inserting plate to descend, and the flaxseed oil is squeezed out by secondary extrusion and is discharged along the flow collecting cavity and the oil outlet.

Further, the production device further comprises a classification cylinder, the classification cylinder is arranged between the first-stage pressing disc and the second-stage pressing disc, the classification cylinder divides the flaxseed mud cakes coming out of the first-stage pressing disc into a plurality of stages according to sizes after being scattered and discharges the flaxseed mud cakes into a material placing groove from small to large, the section width of the material placing groove changes along with the height, and the width of the material placing groove at the lower part is smaller than that of the material placing groove at the high part. The classifying cylinder separates out the small-sized flax seed cakes and puts the flax seed cakes into the material placing groove, then the flax seed cakes are led into the material dropping channel, the flax seed cakes with small diameters are located at a low position, then the classifying cylinder puts the medium-sized flax seed cakes into the material placing groove, the process of leading the flax seeds into the material dropping channel is carried out again, and the flax seeds classified according to sizes are also vertically stored in the material dropping channel in sequence to wait for secondary oil pressing.

Furthermore, the classifying cylinder comprises an outer cylinder body, a separating ring network, a collecting pipe and a centrifugal wheel, wherein the outer cylinder body is internally divided into a plurality of annular areas by the concentrically arranged separating ring network, the space at the most central position is a central cavity, the space at the outer edge position is an outer ring cavity, the space between the central cavity and the outer ring cavity is a middle cavity, the bottom parts of the central cavity, the middle cavity and the outer ring cavity are respectively connected to the collecting pipe and are provided with an on-off valve on each connecting branch, the centrifugal wheel is provided with a plurality of fan blades and is inserted into the outer cylinder body from top to bottom, and the centrifugal wheel rotates by taking the central line of the outer cylinder body as an axis,

flaxseed from the first press disc is thrown into the central cavity, the end of the collecting pipe is connected with the material placing groove, and the aperture of the separating ring net close to the central line of the outer cylinder body is larger than that of the separating ring net positioned at the outer edge.

After the first-stage pressing disc drains oil completely, the first-stage oil outlet is closed, then a certain water body is injected into the material inlet, the flaxseed mud cakes in the first-stage pressing disc are flushed and flow into the central cavity, the centrifugal wheel stirs the water body, the small flaxseed mud cakes penetrate through the largest number of layers of separating ring nets to reach the outer ring cavity, the large flaxseed mud cakes stay in the central cavity, and then the collecting pipes sequentially discharge the flaxseed mud cakes after size classification and flow towards the material placing groove.

Furthermore, the inner surface of each separation ring net is provided with a spike. The spikes prevent the accumulation of a flaxseed cake at the location of the holes, which during the centrifugal movement either passes through the layer of separating rings or is squeezed open by the spikes and is more easily carried along by the water flow and continuously rotates.

The positive and negative rotation of the centrifugal wheel are alternately carried out. Prevents the flax seeds from accumulating at a specific position of the separation ring net.

An integrated production process of cold-pressed linseed oil, which comprises the following steps:

the method comprises the following steps: carrying out primary oil extraction on flaxseeds in a primary pressing disc, and discharging oil liquid obtained by primary oil extraction;

step two: washing the flaxseed mud cake in the first-stage pressing disc with water, and washing the flaxseed mud cake into a separation cylinder for separation according to size;

step three: throwing the small-size linseed mud cakes into a vertical channel, and then stacking the gradually increased linseed mud cakes on the vertical channel;

step four: inserting an inserting plate into the vertical channel to extrude the flaxseeds from the longest direction of the flaxseed mud cakes to perform secondary oil extraction, and collecting secondary oil;

step five: after the mixture of secondary oil and water is collected, the vertical channel is flushed with water, and then the wastewater is drained.

Compared with the prior art, the invention has the following beneficial effects: the invention relates to two oil pressing procedures, wherein most of oil water is pressed out through first-stage pressing, flaxseed cakes subjected to first compression are washed by water into a classification cylinder for centrifugal separation, small-sized cakes reach the periphery of the classification cylinder, larger cakes are remained at the central position of the classification cylinder, then the cakes are discharged into a material placing groove in batches from small to large, the cakes are vertically distributed into a blanking channel by vibration and matching with ascending air flow in the blanking channel, flaxseeds vertically accumulated in the blanking channel are subjected to a pressing process perpendicular to the last compression direction again, and residual oil is fully pressed out and discharged from an oil outlet.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a schematic drawing of the profile of the secondary press disk of the present invention;

FIG. 3 is a schematic view of the inside cut-away of the secondary press disk of the present invention;

FIG. 4 is view A of FIG. 3;

FIG. 5 is a schematic view of the structure of the blanking chute of the present invention;

FIG. 6 is view B-B of FIG. 5;

FIG. 7 is a schematic view of the construction of the sorting cartridge of the present invention;

in the figure: the device comprises a shell 1, a feed inlet 11, a primary oil outlet 12, a secondary oil outlet 13, a primary press disc 2, a classifying cylinder 3, an outer cylinder 31, a central cavity 311, a middle cavity 312, an outer ring cavity 313, a separation ring network 32, a collecting pipe 33, a centrifugal wheel 34, a secondary press disc 4, a press head 41, a chassis 42, a material placing groove 421, a blanking passage 422, a posture correcting inclined plane 4221, a collecting cavity 423, an oil outlet 424, an inserting plate 43 and a flow passing pipe 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Referring to fig. 1-7, the present invention provides the following technical solutions:

the utility model provides a cold press linseed oil integrated form apparatus for producing, including shell body 1, the first grade squeezes dish 2, second grade squeezes dish 4 and overflow pipe 5, set up the first grade in the shell body 1 and squeeze dish 2 and second grade and squeeze dish 4, squeeze through overflow pipe 5 intercommunication between dish 4 for the first grade and the second grade, set up feed inlet 11 on the 1 lateral wall of shell body respectively, first grade oil-out 12 and second grade oil-out 13, the first grade squeezes dish 2 and connects feed inlet 11, first grade oil-out 12, second grade squeezes dish 4 and connects second grade oil-out 13. In the linseed is thrown into first level from feed inlet 11 and is squeezed dish 2, first level squeezes dish 2 and squeezes out first oil, from outside 12 eduction gear of first level oil-out, the linseed after squeezing is concentrated to second level from overflow pipe 5 and is squeezed the dish 4 in, then after the adjustment linseed gesture, once more experience squeezes the process, fully squeeze out oil, oil is discharged the back from second level oil-out 13, inject into washing water from feed inlet 11, discharge all wastes material from second level oil-out 13, during the discharge, discharge to different positions respectively through the lateral conduit.

The secondary pressing disc 4 comprises a pressing head 41, a base disc 42 and inserting plates 43, the pressing head 41 is positioned right above the base disc 42, a material placing groove 421 is formed in the upper portion of the base disc 42, an oil outlet 424 is formed in the side face of the bottom of the base disc 42, a collecting chamber 423 is arranged inside the base disc 42, the material placing groove 421 is communicated with the collecting chamber 423 through a plurality of vertical blanking passages 422, the flax seeds squeezed by the primary pressing disc 2 are discharged into the material placing groove 421 through a flow pipe 5, the blanking passages 422 are flat sections, the inserting plates 43 are arranged on the lower surface of the pressing head 41, the number of the inserting plates 43 is the same as that of the blanking passages 422 and are positioned right above the blanking passages 422, the section of the inserting plates 43 is the same as that of the blanking passages 422, and the oil outlet 424 is connected with the secondary oil outlet 13.

The flaxseeds pressed by the first-stage pressing disc 2 become mud cakes, the mud cakes are scattered and poured into the material holding groove 421, the flaxseed patties in the loading chute 421 are sequentially slid into the chute 422 one by one due to the vibration, the thickness of the chute 422 is at least greater than the thickness of the flaxseed patties, and the thickness of the blanking passage 422 is less than 1.3 times of the statistical average thickness of the flaxseed cake after being pressed by the first-stage pressing disc 2, so that the interior of the blanking channel 422 can be filled tightly, the inserting plate 43 descends along with the pressing head 41, the inserting plate 43 is inserted into each blanking channel 422 and presses the flaxseed cake therein to extract oil, the pressing direction is along the other vertical direction of the flaxseed cake, the flaxseeds can be subjected to a sufficient oil extraction process to finally become a rod-shaped flaxseed, and the extracted secondary oil is collected in the manifold 423 and then discharged to the outside of the device through the oil outlet 424 and the secondary oil outlet 13 to be collected.

The top of the blanking channel 422 is provided with a posture-correcting inclined plane 4221, and the posture-correcting inclined plane 4221 extends and inclines from the length edge of the section of the blanking channel 422. As shown in fig. 3 and 4, the posture-correcting slant 4221 assists the flaxseed cake to adjust its posture, and is more easily poured into the chute 422 and then vertically dropped.

In the process that the flaxseed cakes in the material placing groove 421 are poured into the blanking channel 422, gas is blown into the secondary oil outlet 13 from the outside. As shown in fig. 4 and 5, the flaxseed cake is tilted at the posture-correcting slant 4221, at this time, the ascending air flow from bottom to top blows the tilted flaxseed cake, so that the end of the flaxseed cake at the high position is slightly lifted so as to ascend the air flow, the flaxseed cake is supported into a vertical posture to fall into the blanking channel 422 and then is sequentially and vertically distributed, after all flaxseeds in the material placing tank 421 fall into the blanking channel 422, the external air injection is stopped, the secondary oil outlet 13 is connected with an oil collecting structure, then the pressure head 41 drives the inserting plate 43 to descend, and the flaxseed oil is secondarily squeezed out to be discharged along the collecting chamber 423 and the oil outlet 424.

The production device further comprises a classification cylinder 3, the classification cylinder 3 is arranged between the primary pressing disc 2 and the secondary pressing disc 4, the classification cylinder 3 divides the flaxseed mud cakes coming out of the primary pressing disc 2 into a plurality of stages after shaking and discharges the flaxseed mud cakes into a material placing groove 421 from small to large, the section width of the material placing groove 422 changes along with the height, and the width of the material placing groove 422 at the lower part is smaller than that of the material placing groove 422 at the high part. The classifying cylinder 3 firstly separates out small-sized flaxseed cakes and puts the separated flaxseed cakes into the material placing groove 421, then the flaxseed cakes are led into the material placing channel 422, the flaxseed cakes with small diameters are positioned at a low position, then the classifying cylinder 3 puts medium-sized flaxseed cakes into the material placing groove 421, the process of leading the flaxseeds into the material placing channel 422 is carried out again, and the flaxseeds classified according to sizes are also vertically stored in the material placing channel 422 in sequence to wait for secondary oil pressing.

The classifying cylinder 3 comprises an outer cylinder 31, a separating ring net 32, a collecting pipe 33 and a centrifugal wheel 34, the outer cylinder 31 is internally divided into a plurality of annular areas by the concentrically arranged separating ring net 32, the space at the most central position is a central cavity 311, the space at the outer edge position is an outer ring cavity 313, the space between the central cavity 311 and the outer ring cavity 313 is a middle cavity 312, the bottoms of the central cavity 311, the middle cavity 312 and the outer ring cavity 313 are respectively connected to the collecting pipe 33 and are provided with an on-off valve at each connecting branch, the centrifugal wheel 34 is provided with a plurality of fan blades and is inserted into the outer cylinder 31 from top to bottom, the centrifugal wheel 34 rotates by taking the central line of the outer cylinder 31 as an axis,

flaxseed from the first press disc 2 is thrown into the central cavity 311, the end of the collecting pipe 33 is connected with the material placing groove 421, and the aperture of the separation ring net 32 close to the central line of the outer cylinder 31 is larger than that of the separation ring net 32 at the outer edge.

After the first-stage pressing disc 2 is drained of oil, the first-stage oil outlet 12 is closed, then the feeding port 11 is filled with a certain water body, the flaxseed mud cakes in the first-stage pressing disc 2 are flushed and flow into the central cavity 311, the centrifugal wheel 34 stirs the water body, the small-sized flaxseed mud cakes penetrate through the most layers of the separation ring nets 32 to reach the outer ring cavity 313, the large-sized flaxseed mud cakes stay in the central cavity 311, and then the collecting pipes 33 sequentially discharge the flaxseed mud cakes after size classification to the material placing groove 421.

Each of the separating rings 32 has spikes on its inner surface. The spikes prevent the accumulation of a flaxseed cake at the location of the apertures, which during centrifugation either passes through the layer of separating ring 32 or is squeezed open by the spikes and is more easily carried along by the water flow and continuously rotated.

The centrifugal wheel 34 rotates in the forward and reverse directions alternately. Preventing the accumulation of flaxseed at a particular location on the separation loop 32.

An integrated production process of cold-pressed linseed oil, which comprises the following steps:

the method comprises the following steps: carrying out primary oil extraction on flaxseeds in a primary pressing disc, and discharging oil liquid obtained by primary oil extraction;

step two: washing the flaxseed mud cake in the first-stage pressing disc with water, and washing the flaxseed mud cake into a separation cylinder for separation according to size;

step three: throwing the small-size linseed mud cakes into a vertical channel, and then stacking the gradually increased linseed mud cakes on the vertical channel;

step four: inserting an inserting plate into the vertical channel to extrude the flaxseeds from the longest direction of the flaxseed mud cakes to perform secondary oil extraction, and collecting secondary oil;

step five: after the mixture of secondary oil and water is collected, the vertical channel is flushed with water, and then the wastewater is drained.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a cold press linseed oil integrated form apparatus for producing which characterized in that: the production device comprises a shell body (1), a first-stage squeezing disc (2), a second-stage squeezing disc (4) and a flow passing pipe (5), wherein the first-stage squeezing disc (2) and the second-stage squeezing disc (4) are arranged in the shell body (1), the first-stage squeezing disc (2) and the second-stage squeezing disc (4) are communicated through the flow passing pipe (5), a feed inlet (11), a first-stage oil outlet (12) and a second-stage oil outlet (13) are respectively formed in the side wall of the shell body (1), the first-stage squeezing disc (2) is connected with the feed inlet (11) and the first-stage oil outlet (12), and the second-stage squeezing disc (4) is connected with the second-stage oil outlet (13).

2. The integrated cold-pressed linseed oil production apparatus according to claim 1, wherein: second grade squeezes dish (4) including pressure head (41), chassis (42) and picture peg (43), pressure head (41) are located directly over chassis (42), and who puts silo (421) are opened on chassis (42) upper portion, and oil outlet (424) are seted up to chassis (42) bottom side, and chassis (42) inside sets up manifold (423), put through a plurality of vertical blanking passageways (422) intercommunication between silo (421) and manifold (423), overflow pipe (5) will discharge experience first grade squeezes dish (2) and squeezes the flaxseed after to putting silo (421), blanking passageway (422) are the flat cross-section, picture peg (43) set up at pressure head (41) lower surface, picture peg (43) quantity is the same with blanking passageway (422) quantity and is located blanking passageway (422) directly over, picture peg (43) cross sectional shape is the same with blanking passageway (422) cross sectional shape, the oil outlet hole (424) is connected with the secondary oil outlet (13).

3. The integrated cold-pressed linseed oil production apparatus according to claim 2, wherein: the top of the blanking channel (422) is provided with a posture-correcting inclined plane (4221), and the posture-correcting inclined plane (4221) extends and inclines from the length edge of the cross section of the blanking channel (422).

4. The integrated cold-pressed linseed oil production apparatus according to claim 3, wherein: and in the process that the flaxseed cakes in the material placing groove 421 are poured into the blanking channel 422, gas is blown into the secondary oil outlet (13) from the outside.

5. The integrated cold-pressed linseed oil production apparatus according to claim 4, wherein: the production device still includes a classification section of thick bamboo (3), a classification section of thick bamboo (3) set up and squeeze between dish (4) at first level and second grade, divide into a plurality of grades and discharge according to order from small to big in arranging silo (421) according to the size after classifying section of thick bamboo (3) shakes the flaxseed mud cake that first level squeezed dish (2) to come out, blanking way (422) cross-section width is along with height variation, and the blanking way (422) width that is located the low position is less than the blanking way (422) of eminence.

6. The integrated cold-pressed linseed oil production device according to claim 5, wherein: the classifying cylinder (3) comprises an outer cylinder body (31), a separating ring net (32), a collecting pipe (33) and a centrifugal wheel (34), the outer cylinder body (31) is divided into a plurality of annular areas by the concentrically arranged separating ring net (32), the space located at the most central position is a central cavity (311), the space located at the outer edge position is an outer ring cavity (313), the space located between the central cavity (311) and the outer ring cavity (313) is a middle cavity (312), the bottoms of the central cavity (311), the middle cavity (312) and the outer ring cavity (313) are respectively connected to the collecting pipe (33) and are provided with on-off valves at each connecting branch, the centrifugal wheel (34) is provided with a plurality of fan blades and is inserted into the outer cylinder body (31) from top to bottom, and the central line of the outer cylinder body (31) outside the centrifugal wheel (34) rotates by taking the axis as the axis,

flax seeds coming from a first-stage pressing disc (2) are thrown into a central cavity (311), the tail end of the collecting pipe (33) is connected with a material placing groove (421), and the aperture of a separation looped network (32) close to the central line of the outer cylinder body (31) is larger than that of the separation looped network (32) located at the outer edge.

7. The integrated cold-pressed linseed oil production device according to claim 6, wherein: the inner surface of each separation looped network (32) is provided with spikes.

8. The integrated cold-pressed linseed oil production device according to claim 6, wherein: the centrifugal wheel (34) rotates forwards and backwards alternately.

9. An integrated production process of cold-pressed linseed oil, which is characterized by comprising the following steps: the production process comprises the following steps:

the method comprises the following steps: carrying out primary oil extraction on flaxseeds in a primary pressing disc, and discharging oil liquid obtained by primary oil extraction;

step two: washing the flaxseed mud cake in the first-stage pressing disc with water, and washing the flaxseed mud cake into a separation cylinder for separation according to size;

step three: throwing the small-size linseed mud cakes into a vertical channel, and then stacking the gradually increased linseed mud cakes on the vertical channel;

step four: inserting an inserting plate into the vertical channel to extrude the flaxseeds from the longest direction of the flaxseed mud cakes to perform secondary oil extraction, and collecting secondary oil;

step five: after the mixture of secondary oil and water is collected, the vertical channel is flushed with water, and then the wastewater is drained.

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