CN211420096U

CN211420096U - Continuous extraction leacher for extracting phytic acid from rapeseed dregs

Info

Publication number: CN211420096U
Application number: CN201921667731.6U
Authority: CN
Inventors: 魏冰; 邱立明; 孟橘
Original assignee: Xi'an Cofco Engineering Research And Design Institute Co ltd
Current assignee: Xi'an Cofco Engineering Research And Design Institute Co ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-09-04
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a continuous extraction leacher for extracting phytic acid from rapeseed dregs, which comprises a hollow upper leaching section, a bending section, a lower leaching section, a dripping section and a rising section which are arranged along the counter-clockwise direction and are connected end to end in sequence; a drag chain conveyor belt is arranged in the upper soaking section, the bending section, the lower soaking section, the dripping section and the rising section, a V-shaped scraper is arranged on the drag chain conveyor belt, and the opening end of the V-shaped scraper is fixed on the drag chain conveyor belt; three first mixed liquid chambers are arranged below the upper leaching section, and a first leaching liquor outlet is formed in the bottom of each first mixed liquid chamber; two second mixed liquid chambers are arranged at the bottom of the lower leaching section, and a second leaching liquor outlet is formed in the bottom of each second mixed liquid chamber; the bottom of the dripping section is provided with a meal outlet, and the side surface is provided with a transmission mechanism. The device is provided with the V-shaped scraper, so that materials on the second material bed can be scraped conveniently, the phenomenon that the second material bed is blocked by the materials is avoided, the penetration and dripping-drying of mixed oil are ensured, and the self-cleaning function is realized.

Description

Continuous extraction leacher for extracting phytic acid from rapeseed dregs

Technical Field

The utility model belongs to the technical field of grease extraction, specifically speaking relates to a continuous extraction leacher that is used for vegetable seed dregs to draw phytic acid.

Background

Rape is one of the main oil crops in China, and 95 percent of rapeseeds in China are used for producing edible oil. At present, the common oil pressing process of rapeseeds comprises two processes of power rotary pressing and prepressing leaching, wherein the byproduct of the former process is rapeseed cakes, and the byproduct of the latter process is rapeseed dregs.

The crude protein content of the rapeseed cake is 35-45%. The nutritive value of the rapeseed protein is higher than that of the soybean protein; the protein has higher efficiency ratio, utilization rate, biological value, digestibility and other indexes than soybean protein. By adding 33% of rapeseed protein into the meat, the biological value and the utilization rate of the protein are respectively improved to 86.3% from 76.3%, while by adding the same amount of soybean protein into the meat, the nutritive value of the meat is not changed. Rapeseed proteins are therefore an ideal nutrient source for humans and animals. Phytic Acid (PA) accounts for 2-4% of the double-low rapeseed cake, exists in the form of a phytic acid-polyvalent metal cation-protein ternary complex, can inhibit the biological utilization of proteins and mineral elements, and is considered as an anti-nutritional factor. The separated phytic acid product has high economic value, can be widely applied to various industries such as food, chemical industry, medicine and the like, and is particularly known as a natural non-toxic additive in the food industry.

The important link for extracting the phytic acid from the rapeseed dregs is an extraction process, and extraction equipment for extracting the phytic acid from the rapeseed dregs in the prior art mostly adopts a conventional batch-production tank group type extractor, so that the extraction efficiency is low, the treatment capacity is small, and the extraction equipment is not suitable for the requirement of large-scale continuous production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a new technical proposal of a continuous extraction leacher for extracting phytic acid from rapeseed dregs.

According to one aspect of the utility model, the utility model provides a continuous extraction leacher for extracting phytic acid from rapeseed dregs, which comprises a hollow upper leaching section, a bending section, a lower leaching section, a dripping section and a rising section which are arranged along the counter-clockwise direction and are connected end to end in sequence;

a drag chain conveyer belt is arranged in the upper soaking section, the bending section, the lower soaking section, the dripping section and the rising section, the drag chain conveyer belt sequentially passes through the upper soaking section, the bending section, the lower soaking section, the dripping section and the rising section to form an annular closed-loop drag chain conveyer belt, a V-shaped scraper is arranged on the drag chain conveyer belt, and the opening end of the V-shaped scraper (11) is fixed on the drag chain conveyer belt;

the lifting section comprises a hollow first shell, and a rectangular material level viewing mirror is arranged on the side surface of the first shell;

the upper dipping section comprises a hollow second shell, a feed hopper is arranged above the second shell and close to the lifting section, and a first material bed is arranged in the second shell and below the drag chain conveyer belt; three first mixed liquid chambers are arranged below the second shell, and a first leaching liquor outlet is formed in the bottom of each first mixed liquid chamber;

the bending section comprises a hollow third shell; a plurality of material level sight glasses are arranged on the third shell;

the lower leaching section comprises a hollow fourth shell, a second material bed is arranged in the fourth shell and below the drag chain conveying belt, two second mixed liquid chambers are arranged at the bottom of the fourth shell, and a second leaching liquor outlet is arranged at the bottom of each second mixed liquid chamber;

the dripping section comprises a fifth shell, a meal outlet is formed in the bottom of the fifth shell, and a transmission mechanism is arranged on the side face of the fifth shell.

Optionally, the first shell, the second shell, the third shell, the fourth shell and the fifth shell are connected end to end in sequence.

Optionally, a rectangular level-sensing mirror is disposed on a side surface of the first housing.

Optionally, a plurality of spray liquid interfaces are arranged on the side surfaces of the second shell and the fourth shell, and two spray liquid interfaces are respectively arranged on two sides of the fifth shell; the spray liquid interface is connected with the spray head through a pipeline, and the spray head is arranged in the second shell, the fourth shell and the fifth shell and above the drag chain conveying belt.

Optionally, a first circulating pump, a second circulating pump and a third circulating pump are respectively connected below the three first mixed liquid chambers, and the first circulating pump and the third circulating pump are respectively connected with a middle spray liquid interface arranged on the second shell; the second circulating pump is connected with the hydrocyclone separator;

a fourth circulating pump and a fifth circulating pump are respectively connected below the two second mixed liquid chambers, and the other end of the fourth circulating pump is respectively connected with a spraying liquid interface which is arranged on the side surfaces of the second shell and the fourth shell and is close to the bending section; the fifth circulating pump is respectively connected with other spraying liquid interfaces arranged on the side surface of the fourth shell, and a valve is arranged between every two adjacent spraying liquid interfaces;

the lower part of the second mixed liquid chamber connected with the fifth circulating pump is connected with a spraying liquid interface arranged on the side surface of the fifth shell, and the spraying liquid interface is arranged close to the lifting section.

Optionally, a circular level-sensing mirror is arranged on the side of the second shell, the fourth shell and the fifth shell.

Optionally, the bottom of the third casing and the bottom of the fifth casing are provided with support legs.

Optionally, the transmission mechanism includes a first driving pulley, the first driving pulley is provided with a motor, the first driving pulley is connected to a second driving pulley through a belt, and the second driving pulley drives the drag chain conveyor belt to rotate through a rotating shaft.

Optionally, the top of the second casing, the top of the fourth casing and the top of the fifth casing are all provided with access ports.

Optionally, the thickness of the materials on the first material bed and the second material bed is 450 mm and 600 mm.

The utility model has the technical effect that the utility model can be used for the continuous extraction of phytic acid from rapeseed dregs. The V-shaped scraper is arranged, so that materials on the second material bed can be scraped conveniently, the phenomenon that the second material bed is blocked by the materials is avoided, the penetration and dripping-dry of mixed oil are ensured, and the self-cleaning function is realized.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a schematic structural view of a continuous extraction leacher for extracting phytic acid from rapeseed dregs;

FIG. 2 is a schematic structural view of a continuous extraction leacher spraying removal system for extracting phytic acid from rapeseed dregs;

fig. 3 is a schematic structural diagram of the spraying system of the continuous extraction leacher for extracting phytic acid from rapeseed dregs.

In the figure, 1, an upper leaching section, 2, a bending section, 3, a lower leaching section, 4, a dripping dry section, 5, a rising section, 6, a drag chain conveyer belt, 7, a first shell, 8, a feed hopper, 9, a level viewing mirror, 10, a first material bed, 11, a V-shaped scraper, 12, a second shell, 13, a first mixed liquid chamber, 14, a first leaching liquid outlet, 15, a spraying liquid interface, 15-1 fresh solvent ports, 16, a spray head, 17, a third shell, 18, a fourth shell, 19, a second mixed liquid chamber, 20, a second leaching liquid outlet, 21, a fifth shell, 22, a meal outlet, 23, a transmission mechanism, 24, a supporting leg, 25, a first driving pulley, 26, a motor, 27, a second driving pulley, 28, a fifth circulating pump, 29, a maintenance port, 30, a first circulating pump, 31, a rotary liquid separator, 32, a second circulating pump, 33. third circulating pump, 34, valve, 35, fourth circulating pump, 36, second material bed.

Detailed Description

The following embodiments will be described in detail with reference to the accompanying drawings, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

The utility model discloses a continuous extraction leacher for extracting phytic acid from rapeseed dregs, which comprises a hollow upper soaking section 1, a bending section 2, a lower soaking section 3, a dripping section 4 and a rising section 5 which are arranged along the anticlockwise direction and are sequentially connected end to end, as shown in figure 1;

a drag chain conveyer belt 6 is arranged in the upper dipping section 1, the bending section 2, the lower dipping section 3, the dripping section 4 and the rising section 5 and used for driving materials to move forwards, the drag chain conveyer belt 6 sequentially penetrates through the upper dipping section 1, the bending section 2, the lower dipping section 3, the dripping section 4 and the rising section 5 to form an annular closed-loop drag chain conveyer belt, a V-shaped scraper 11 is arranged on the drag chain conveyer belt 6, and the opening end of the V-shaped scraper 11 is fixed on the drag chain conveyer belt 6;

the stacking shape of the materials on the second material bed is matched with the shape of the V-shaped scraper, so that the V-shaped scraper 11 is convenient for scraping the materials on the second material bed, and the V-shaped scraper 11 slides on the surface of the bottom grid of the material bed, and the phenomenon that the second material bed is blocked by the materials is avoided due to the structure. Ensures the penetration and dripping-drying of the mixed oil and realizes the self-cleaning function.

The rising section 5 comprises a hollow first shell 7, a rectangular material level view mirror 9 is arranged on the side surface of the first shell 7, the height of the material level in the hopper can be observed, and the chain speed of the leacher is adjusted according to the change of the feeding amount, so that the material sealing effect can be achieved, and meanwhile, the material can be uniformly discharged, and the material bed is full;

the upper dipping section 1 comprises a hollow second shell 12, a feed hopper 8 is arranged above the second shell 12 and close to the lifting section 5, and a first material bed 10 is arranged in the second shell 12 and below the drag chain conveyer belt 6; three first mixed liquid chambers 13 are arranged below the second shell 12, and a first leaching liquor outlet 14 is arranged at the bottom of each first mixed liquid chamber 13;

the curved section 2 comprises a hollow third shell 17; a plurality of material level sight glasses 9 are arranged on the third shell 17, so that the height of the material level can be observed conveniently;

the lower dipping section 3 comprises a hollow fourth shell 18, and a second material bed 36 is arranged in the fourth shell 18 and below the drag chain conveyor belt 6; the bottom of the fourth shell 18 is provided with two second mixed liquid chambers 19, and the bottom of each second mixed liquid chamber 19 is provided with a second leaching liquor outlet 20;

wherein, the bottom plates of the first material bed 10 and the second material bed 36 are provided with holes for facilitating the penetration and outflow of the feed liquid; the thickness of the materials on the first material bed 10 and the second material bed 36 is 450-600mm, the solvent is easy to permeate, and in addition, the material layer is turned over up and down after passing through the upper horizontal section and the lower horizontal section, and the bending and loosening effect of the advancing of the bending section ensures that the leaching efficiency is high.

The dripping section 4 comprises a fifth shell 21, a fine discharging port 22 is arranged at the bottom of the fifth shell 21, and a transmission mechanism 23 is arranged on the side surface of the fifth shell 21.

In some embodiments, the first housing 7, the second housing 12, the third housing 17, the fourth housing 18, and the fifth housing 21 are connected end to end in sequence.

In some embodiments, the side of the first housing 7 is provided with a rectangular level mirror 9.

In some embodiments, the side surfaces of the second shell 12 and the fourth shell 18 are provided with a plurality of spray liquid interfaces 15; the spray liquid interface 15 is connected with a spray head 16 through a pipeline, and the spray head 16 is arranged inside the second shell 12 and the fourth shell 18 and above the drag chain conveyor belt 6 and is used for spraying liquid. Two sides of the fifth shell 21 are respectively provided with a spraying liquid interface 15.

In some embodiments, the apparatus further comprises a spray system, the spray system comprising: a first circulating pump 30, a second circulating pump 32 and a third circulating pump 33 are respectively connected to the lower parts of the three first mixed liquid chambers 13, and the first circulating pump 30 and the third circulating pump 33 are respectively connected with a middle spraying liquid interface 15 arranged on the second shell 12; the second circulating pump 32 is connected with the hydrocyclone 31;

a fourth circulating pump 35 and a fifth circulating pump 28 are respectively connected below the two second mixed liquid chambers 19, and the other end of the fourth circulating pump 35 is respectively connected with a spraying liquid interface 15 which is arranged on the side surfaces of the second shell 12 and the fourth shell 18 and is close to the bending section 2; the fifth circulating pump 28 is respectively connected with other spraying liquid interfaces 15 arranged on the side surface of the fourth shell 18, and a valve 34 is arranged between two adjacent spraying liquid interfaces 15;

the lower part of the second mixed liquid chamber 19 connected with the fifth circulating pump 28 is connected with a spraying liquid interface 15 arranged on the side surface of the fifth shell 21, the spraying liquid interface 15 is arranged close to the lifting section 5, close to the meal outlet 22, and positioned below the drag chain conveying belt 6, and is used for washing the material powder falling to the inclined part of the dripping section 4, washing the material powder into the second mixed liquid chamber 19, and performing separation treatment by a subsequent working section, so that the accumulation of the material, the mildew caused by the accumulation of the material, the obstruction to the gravity downflow of the permeated solvent and the like are avoided.

Wherein, the effect of hydrocyclone separator is in getting rid of the dregs of rice in the thick mixed oil, and second circulating pump 32 sends into hydrocyclone separator, and the material produces the vortex in hydrocyclone separator, reaches the purpose of separation according to the difference of powder and mixed oil bulk weight, and heavy phase (powder) discharges from the bottom and returns to in the leaching ware, and light phase (mixed oil) discharges from the overflow opening on hydrocyclone separator upper portion.

In some embodiments, the second, fourth and

fifth housings

12, 18, 21 are flanked by circular level-viewing mirrors 9 to facilitate viewing of the contents of the extractor.

In some embodiments, the bottom of the third housing 17 and the fifth housing 21 are provided with support legs 24.

In some embodiments, the transmission mechanism 23 is a speed reducer, and is a common knowledge in the art, and includes a first driving pulley 25, a motor 26 is disposed on the first driving pulley 25, a second driving pulley 27 is connected to the first driving pulley 25 through a belt, and the second driving pulley 27 drives the drag chain conveyor belt 6 to rotate through a rotating shaft.

In some embodiments, the top of the first casing 7, the second casing 12, the third casing 17, the fourth casing 18 and the fifth casing 21 are all provided with an access opening 29 to facilitate the detection of the internal components of the device.

When the rapeseed extractor is used, the pretreated rapeseed meal enters the feed hopper 8, the rapeseed meal enters the extractor through the feed hopper 8, the feed hopper 8 is provided with the rectangular material level view mirror 9, and the running speed of the extractor drag chain conveyer belt 6 is controlled according to the height of the material level in the feed hopper 8, so that the material sealing height in the feed hopper 8 is ensured.

Rapeseed meal from the feed hopper 8 is carried by a drag chain conveyor in the extractor to the upper leaching stage 1, where it is first contacted with the mixed liquor. Then the rapeseed dregs pass through the bending section 2 and are taken to the lower leaching section 3, a second mixed liquid chamber 19 is arranged below a second material bed 36 of the lower leaching section 3, a mixed liquid circulating pump 28 is arranged at the bottom of each second mixed liquid chamber 19, the mixed liquid in the second mixed liquid chambers 19 is pumped to the second material bed 36 by the circulating pump, the rapeseed dregs are continuously sprayed and extracted by the mixed liquid with the descending concentration while moving forwards, the extracted mixed liquid falls into the second mixed liquid chamber 19 below through the material bed, then the rapeseed dregs are taken to the dripping section 4 by a drag chain conveying belt 6 and then enter the slightly inclined dripping section 4, during the period, the rapeseed dregs are firstly sprayed by the dilute mixed liquid, finally the fresh solvent is sprayed by the fresh solvent at the fresh solvent port 15-1 of the dripping section 4 close to the lower leaching section 3, and the rapeseed dregs belong to the dripping drying stage at the fresh solvent port 15-1 and the dreg outlet 22, the wet meal is drained through a meal outlet 22. The device drives the drag chain conveyer belt 6 to move by the transmission device 23.

In the leaching process, the solvent and the rapeseed dregs run in the reverse direction, the fresh solvent is sprayed into the tail of the lower leaching section 3 of the leacher, so that a dilute mixed solution is collected in the second mixed solution chamber 19 of the lower leaching section 3 and is continuously recycled on the lower leaching section 3, and a part of mixed solution in the lower leaching section 3 enters the tail of the upper leaching section 1 through the circulating pump of the lower leaching section 3 to be sprayed, so that continuous extraction is realized.

The circulating pump of each first mixed liquid chamber 13 and each second mixed liquid chamber 19 in the spraying system of the device performs self-circulation, one part of the circulating pump overflows to the next mixed liquid chamber, the mixed liquid is sprayed in sequence, the relatively concentrated mixed liquid is contacted with newly-entered rapeseed dregs, the mixed liquid is sprayed and soaked, and then the mixed liquid overflows to the backward first mixed liquid chamber 13 or the backward second mixed liquid chamber 19 to form concentrated mixed liquid. The concentrated mixed liquid is pumped into the hydrocyclone 31 by the second circulation pump 32.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But variations and modifications which do not depart from the spirit and scope of the invention should be construed as being included in the scope of the appended claims.

Claims

1. A continuous extraction leacher for extracting phytic acid from rapeseed dregs is characterized by comprising a hollow upper leaching section (1), a bending section (2), a lower leaching section (3), a dripping section (4) and a rising section (5) which are arranged along the counterclockwise direction and are connected end to end in sequence;

a drag chain conveyer belt (6) is arranged in the upper soaking section (1), the bending section (2), the lower soaking section (3), the dripping section (4) and the rising section (5), the drag chain conveyer belt (6) sequentially penetrates through the upper soaking section (1), the bending section (2), the lower soaking section (3), the dripping section (4) and the rising section (5) to form an annular closed-loop drag chain conveyer belt, a V-shaped scraper (11) is arranged on the drag chain conveyer belt (6), and the open end of the V-shaped scraper (11) is fixed on the drag chain conveyer belt (6);

the rising section (5) comprises a hollow first shell (7), and a rectangular material level viewing mirror (9) is arranged on the side surface of the first shell (7);

the upper dipping section (1) comprises a hollow second shell (12), a feed hopper (8) is arranged above the second shell (12) and close to the lifting section (5), and a first material bed (10) is arranged in the second shell (12) and below the drag chain conveyor belt (6); three first mixed liquid chambers (13) are arranged below the second shell (12), and a first leaching liquor outlet (14) is arranged at the bottom of each first mixed liquid chamber (13);

the bending section (2) comprises a hollow third shell (17); a plurality of material level sight glasses (9) are arranged on the third shell (17);

the lower leaching section (3) comprises a hollow fourth shell (18), a second material bed (36) is arranged in the fourth shell (18) and below the drag chain conveying belt (6), two second mixed liquid chambers (19) are arranged at the bottom of the fourth shell (18), and a second leaching liquor outlet (20) is arranged at the bottom of each second mixed liquid chamber (19);

the dripping section (4) comprises a fifth shell (21), a meal outlet (22) is formed in the bottom of the fifth shell (21), and a transmission mechanism (23) is arranged on the side face of the fifth shell (21).

2. The continuous extraction leacher for extracting phytic acid from rapeseed dregs according to claim 1, wherein the first shell (7), the second shell (12), the third shell (17), the fourth shell (18) and the fifth shell (21) are connected end to end in sequence.

3. The continuous extraction leacher for extracting the phytic acid from the rapeseed dregs according to the claim 1, wherein the side surfaces of the second shell (12) and the fourth shell (18) are provided with a plurality of spraying liquid interfaces (15), and two sides of the fifth shell (21) are respectively provided with one spraying liquid interface (15); the spraying liquid interface (15) is connected with a spray head (16) through a pipeline, and the spray head (16) is arranged in the second shell (12), the fourth shell (18) and the fifth shell (21) and above the drag chain conveyor belt (6).

4. The continuous extraction leacher for extracting the phytic acid from the rapeseed dregs according to the claim 3, wherein a first circulating pump (30), a second circulating pump (32) and a third circulating pump (33) are respectively connected below the three first mixed liquid chambers (13), and the first circulating pump (30) and the third circulating pump (33) are respectively connected with a middle spraying liquid interface (15) arranged on the second shell (12); the second circulating pump (32) is connected with the hydrocyclone separator (31);

a fourth circulating pump (35) and a fifth circulating pump (28) are respectively connected below the two second mixed liquid chambers (19), and the other end of the fourth circulating pump (35) is respectively connected with a spraying liquid interface (15) which is arranged on the side surfaces of the second shell (12) and the fourth shell (18) and is close to the bending section (2); the fifth circulating pump (28) is respectively connected with other spraying liquid interfaces (15) arranged on the side surface of the fourth shell (18), and a valve (34) is arranged between every two adjacent spraying liquid interfaces (15);

the lower part of the second mixed liquid chamber (19) connected with the fifth circulating pump (28) is connected with a spraying liquid interface (15) arranged on the side surface of the fifth shell (21), and the spraying liquid interface (15) is arranged close to the rising section (5).

5. The continuous extraction leacher for extracting phytic acid from rapeseed dregs according to claim 1, wherein a circular level viewing mirror (9) is arranged on the side of the second shell (12), the fourth shell (18) and the fifth shell (21).

6. The continuous extraction leacher for extracting phytic acid from rapeseed dregs according to claim 1, wherein the bottom of the third shell (17) and the fifth shell (21) is provided with a supporting leg (24).

7. The continuous extraction leacher for extracting the phytic acid from the rapeseed dregs according to the claim 1, wherein the transmission mechanism (23) comprises a first driving pulley (25), the first driving pulley (25) is provided with a motor (26), the first driving pulley (25) is connected with a second driving pulley (27) through a belt, and the second driving pulley (27) drives the drag chain conveyor belt (6) to rotate through a rotating shaft.

8. The continuous extraction leacher for extracting phytic acid from rapeseed dregs according to claim 1, wherein the tops of the second shell (12), the fourth shell (18) and the fifth shell (21) are all provided with an access hole (29).

9. The continuous extraction leacher for extracting the phytic acid from the rapeseed dregs according to the claim 1, wherein the thickness of the first material bed (10) and the second material bed (36) is 450-600 mm.