CN113321744A - Automatic separation method of protein in corn starch production - Google Patents
Automatic separation method of protein in corn starch production Download PDFInfo
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- CN113321744A CN113321744A CN202110680751.2A CN202110680751A CN113321744A CN 113321744 A CN113321744 A CN 113321744A CN 202110680751 A CN202110680751 A CN 202110680751A CN 113321744 A CN113321744 A CN 113321744A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/04—Extraction or purification
- C08B30/042—Extraction or purification from cereals or grains
- C08B30/044—Extraction or purification from cereals or grains from corn or maize
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
Abstract
The invention provides an automatic separation method of protein in corn starch production, which adopts a double-disc separation device for separation, wherein the double-disc separation device comprises a support frame (1), an L-shaped support (2), a driving motor (3), a transmission component (4), a separation cavity (5), a first separation component (6), a second separation component (7) and a distributor component (8), the first separation component (6) comprises a first shaft tube (61), a first gear (62) and a first spiral disc (63), the second separation component (7) comprises a second shaft tube (71), a second gear (72) and a second spiral disc (73), and the distributor component (8) comprises a mandrel (81), a distribution cavity (82) and a flange plate (83). The method separates the corn starch and cleans the protein twice in the same container, thereby ensuring the complete separation of the corn starch and the protein, ensuring the separation efficiency and the separation quality and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of corn starch processing, in particular to an automatic separation method of protein in corn starch production.
Background
Corn starch (corn starch) is also known as cornstarch, commonly known as hexacereal flour. The corn starch is white yellowish powder, can be used in the fields of medicine, food processing, beer, paper making and the like, and has wide application. In the conventional process, corn starch is usually prepared by soaking corn in 0.3% sulfurous acid, crushing, sieving, precipitating, drying, grinding and the like. However, the corn starch produced by the conventional process contains a small amount of fat, protein, water-soluble substances, etc., which affect the quality of the corn starch, and thus, the corn starch milk needs to be subjected to steps of protein separation, washing, etc., in order to secure the quality of the produced corn starch.
For the separation of corn starch and protein, a centrifugal separator is usually adopted to separate the protein in the starch at present, however, the conventional centrifugal separator has incomplete separation, and the corn starch which is not separated still contains more protein (usually more than 5 percent); and the protein separated by the existing centrifugal separator is easy to attach to the inner cavity wall of the centrifugal separator, so that the separated corn starch and the protein are easy to be remixed, and further the corn starch is not completely separated. In the prior art, aiming at the problem of incomplete separation of corn starch, multiple separation is usually adopted, but a large amount of manpower and material resources are wasted, the production cost is increased, multiple separation needs to be carried out for multiple times, the continuity of the separation process is influenced, multiple separation easily causes transition loss of the separation equipment, and the later maintenance work and the maintenance cost of the equipment are increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an automatic separation method for protein in corn starch production, which is used for separating corn starch twice in the same container, so that the complete separation of the corn starch and the protein is ensured, the separation efficiency is ensured, and the production cost and the equipment loss are reduced; meanwhile, the method can automatically clean the corn starch and the protein in the same container after the corn starch and the protein are separated, thereby ensuring the fluency of the process, improving the automation degree of the process and effectively avoiding the separated protein from adhering to the inner cavity wall of the separator.
The purpose of the invention is realized by the following technical scheme:
an automatic separation method of protein in corn starch production is characterized in that:
the double-disc separation device is used for separation and comprises a support frame, an L-shaped support, a driving motor, a transmission assembly, a separation cavity, a first separation assembly, a second separation assembly and a distributor assembly, wherein the L-shaped support, the driving motor and the separation cavity are arranged on the support frame respectively, the driving motor and the separation cavity are arranged on two sides of the support frame, and the L-shaped support is arranged on the top of the support frame between the driving motor and the separation cavity; the separation cavity comprises a separation cavity, a separation cavity end cover, a filter plate, a partition plate, a plurality of positioning pins, a plurality of first leakage holes, positioning pins and a water outlet pipe, wherein the separation cavity end cover is arranged on the top surface of the separation cavity, the separation cavity inner cavity is ensured to form a closed environment, and starch is prevented from overflowing when starch is separated; the first separation assembly comprises a first shaft tube, a first gear and a first spiral disc, a first through hole is formed in the middle of the first shaft tube, one end of the first shaft tube is located at the upper end of the partition plate, the other end of the first shaft tube sequentially penetrates through the filter plate and the separation cavity end cover and is located at the upper end of the separation cavity end cover, the first gear is fixedly sleeved on the upper end of the separation cavity end cover, and the first spiral disc is fixedly sleeved on the outer wall of the first shaft tube and is located between the filter plate and the partition plate; the second separation component comprises a second shaft pipe, a second gear and a second spiral disc, the second shaft pipe is sleeved on the outer wall of the first shaft pipe and is rotatably connected with the first shaft pipe, one end of the second shaft pipe is positioned at the upper end of the filter plate, the other end of the second shaft pipe penetrates through the separation cavity end cover and is positioned at the upper end of the separation cavity end cover to be fixedly sleeved with the second gear, the second gear is positioned at the lower end of the first gear, the second spiral disc is fixedly sleeved on the outer wall of the second shaft pipe and is positioned between the filter plate and the separation cavity end cover; the distributor assembly comprises a core shaft, a distribution cavity and a flange plate, the core shaft penetrates through the first through hole, a second through hole is formed in the middle of the core shaft, the end part of the upper end of the core shaft is higher than the end part of the upper end of the first shaft pipe, the end part of the lower end of the core shaft is lower than the end part of the lower end of the first shaft pipe, the upper end of the core shaft is communicated with a feeding pipe, the lower end of the core shaft is fixedly connected with the distribution cavity, the distribution cavity is hollow and funnel-shaped, an inner cavity of the distribution cavity is communicated with the second through hole, a plurality of distribution through holes are uniformly distributed on the outer wall of the distribution cavity, the lower end of the distribution cavity is fixedly connected with the flange plate, the end face of the lower end of the flange plate is contacted with the end face of the upper end of the partition plate, the flange plate is provided with a positioning waist hole corresponding to the positioning pin, and provided with a second leak hole corresponding to the first leak hole; the transmission assembly comprises a first belt wheel, a transmission belt and a second belt wheel, the first belt wheel is fixedly sleeved on the outer wall of the first shaft pipe and is positioned at the upper end of the first gear, the second belt wheel is fixedly sleeved on the output end of the driving motor, and the first belt wheel and the second belt wheel are transmitted through the transmission belt; a gear pair is arranged on the L-shaped bracket, a pinion of the gear pair is meshed with the first gear, and a bull gear of the gear pair is meshed with the second gear;
the automatic separation method comprises the following specific steps:
s001, firstly, conducting a feed pipe and a discharge pipe, and sealing the water inlet pipe and the water outlet pipe; then starting a driving motor to rotate forwards, wherein the driving motor drives a first shaft pipe to rotate forwards through a transmission assembly, the first shaft pipe drives a second shaft pipe to rotate in the same direction through a gear pair, meanwhile, the first shaft pipe drives a mandrel to rotate, the mandrel rotates to drive a flange plate and a partition plate to rotate relatively, a positioning waist hole and a positioning pin to move relatively, when the positioning pin props against one side of the positioning waist hole, the first leakage hole and the second leakage hole are not overlapped completely, the lower part of a separation cavity is sealed, and the flange plate and the mandrel do not rotate any more due to the hard limit of the partition plate;
s002, ensuring that the driving motor rotates forwards continuously, introducing mixed starch milk to be separated into the feeding pipe, enabling the mixed starch milk to enter the separation cavity through the second through hole and the distribution through hole, separating by the first spiral disc, filtering larger particle proteins by the filter plate, performing secondary separation by the second spiral disc, and finally collecting the starch milk through the discharging pipe;
s003, after the separation is finished, sealing the feed pipe and the discharge pipe, and conducting the water inlet pipe and the water outlet pipe; then controlling a driving motor to rotate reversely, wherein the driving motor drives a first shaft pipe to rotate reversely through a transmission assembly, the first shaft pipe drives a second shaft pipe to rotate in the same direction through a gear pair, meanwhile, the first shaft pipe drives a mandrel to rotate, the mandrel rotates to drive a flange plate and a partition plate to rotate relatively, a positioning waist hole and a positioning pin to move relatively, when the positioning pin props against the other side of the positioning waist hole, the first leakage hole and a second leakage hole are completely overlapped, the lower part of a separation cavity is communicated, and the flange plate and the mandrel cannot rotate any more due to the hard limit of the partition plate;
s004, ensuring that the driving motor rotates reversely continuously, introducing cleaning water into the water inlet pipe, enabling the cleaning water to enter the separation cavity, and generating continuous downward impulsive force and spiral force towards two ends under the driving of the rotating centrifugal force of the first spiral disc and the second spiral disc so as to impact and clean the separation cavity, the filter plate and the partition plate;
s005, repeating the steps S001 to S004.
Further optimization, the starch milk collected by the discharge pipe in the step S002 is washed with water-soluble substances by an external washing device, then is dried and ground, and finally is preserved.
Further preferably, the driving motor is fixedly arranged at the bottom of the supporting frame through a motor bracket.
The separation cavity end cover is connected with the separation cavity through threads or screws, and the separation cavity is installed on the support frame through an installation flange.
In a further optimization, the inner wall of the separation cavity is provided with a spiral runner groove.
For further optimization, the first shaft tube is connected with the second shaft tube through a sealing bearing; the first shaft tube and the mandrel are sealed through a sealing ring.
And further optimization is carried out, wherein the first shaft tube, the second shaft tube, the mandrel and the central axis of the separation cavity are in the same straight line.
And further optimizing, wherein the number of gear teeth of the gear pair is greater than that of the second gear teeth, and the number of pinion teeth of the gear pair is less than that of the first gear teeth.
Preferably, the spiral pitch of the second spiral disk is smaller than the spiral pitch of the first spiral disk.
Preferably, the spiral pitch of the first spiral disk is 1.5 to 2.5 times of the spiral pitch of the second spiral disk.
Further optimizing, a feeding electromagnetic valve is arranged at the joint of the mandrel and the feeding pipe; the discharge pipe is provided with a discharge electromagnetic valve; the water inlet pipe is provided with a water inlet electromagnetic valve; and the external water outlet pipe is provided with a water outlet electromagnetic valve.
In a further optimization, the double-disc separating device further comprises a central control device, and the central control device is electrically connected with the driving motor, the feeding electromagnetic valve, the discharging electromagnetic valve, the water inlet electromagnetic valve and the water outlet electromagnetic valve.
Further preferably, the inner wall of the feeding pipe is rotatably connected with the outer wall of the mandrel through a sealing bearing.
The invention has the following technical effects:
the method adopts the structural cooperation of the first separation component, the second separation component and the filter plate arranged in the separation cavity, and adopts a separation-filtration-separation method, so that two different levels of separation (namely, separation of large-particle protein at the lower part and separation of small-particle protein at the upper part) are formed for starch milk and protein, and the separation efficiency and the separation effect are ensured; meanwhile, the structure arrangement of the driving motor, the transmission component, the gear pair and the first spiral disk and the second spiral disk ensures that different rotating speeds are obtained between the first separating component and the second separating component, and further the following technical effects are obtained: firstly, different centrifugal forces are generated through different rotating speeds, so that protein-starch separation of different levels is performed in a targeted manner (namely, the separation of protein in larger particles is realized at a low rotating speed, and the separation of protein in small particles is realized at a high rotating speed), and the separation efficiency is ensured; secondly, different centrifugal forces generate different pressures, so that pressure difference is formed between the upper end and the lower end of the filter plate, and the filter plate is favorable for filtering larger particle proteins; thirdly, the pressure difference can drive the starch milk to move upwards more quickly, thereby saving time and facilitating collection; and fourthly, upward or downward pressure can be realized through the switching of the forward rotation and the reverse rotation of the motor, so that the switching between separation and cleaning is realized, the switching is convenient and is carried out in the same container, the material cost and the manpower resource are saved, the process flow is simplified, and the automation of the separation and the cleaning is realized. The method can separate the starch-protein automatically and clean the starch-protein automatically after separation, and has the advantages of high automation degree, simple process flow, high separation and cleaning efficiency and thorough and complete separation.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a dual disc separator according to an embodiment of the present invention.
FIG. 2 is a sectional view of the dual disk separator according to the embodiment of the present invention.
Fig. 3 is an enlarged view of a portion of fig. 2.
Fig. 4 is a partially enlarged view of fig. 2 in the direction B.
Fig. 5 is a partial enlarged view of fig. 2 taken along line C.
FIG. 6 is a schematic diagram of a separating chamber of a dual disk separating device according to an embodiment of the present invention.
FIG. 7 is a schematic structural diagram of a first separating assembly of the dual disc separating apparatus according to the embodiment of the present invention.
FIG. 8 is a schematic structural diagram of a second separating assembly of the dual disk separating apparatus according to the embodiment of the present invention.
FIG. 9 is a schematic diagram of a distributor assembly of the dual disc separator according to the embodiment of the present invention.
Wherein, 1, a support frame; 2. an "L" shaped bracket; 20. a pair of gears; 3. a drive motor; 4. a transmission assembly; 41. a first pulley; 42. a drive belt; 43. a second pulley; 5. a separation chamber; 50. installing a flange; 51. a separation chamber end cap; 511. a discharge pipe; 5111. a discharge electromagnetic valve; 512. a water inlet pipe; 5121. a water inlet electromagnetic valve; 52. a filter plate; 53. a partition panel; 531. positioning pins; 532. a first leak hole; 54. a water outlet; 55. a spiral runner groove; 540. an external water outlet pipe; 5401. a water outlet electromagnetic valve; 6. a first separation assembly; 61. a first shaft tube; 610. a first through hole; 611. sealing the bearing; 612. a seal ring; 62. a first gear; 63. a first spiral disk; 7. a second separation assembly; 71. a second shaft pipe; 72. a second gear; 73. a second spiral disk; 8. a dispenser assembly; 80. a feed pipe; 801. a feeding electromagnetic valve; 81. a mandrel; 810. a second through hole; 82. a distribution chamber; 820. a distribution through hole; 83. a flange plate; 831. positioning a waist hole; 832. and a second leak hole.
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.
Example (b):
as shown in figures 1-9, an automatic separation method for protein in corn starch production is characterized in that:
the double-disc separation device is used for separation, the double-disc separation device comprises a support frame 1, an 'L' -shaped support 2, a driving motor 3, a transmission component 4, a separation cavity 5, a first separation component 6, a second separation component 7 and a distributor component 8, the support frame 1 is respectively provided with the 'L' -shaped support 2, the driving motor 3 and the separation cavity 5 are arranged on two sides of the support frame 1, and the 'L' -shaped support 2 is arranged on the top of the support frame 1 between the driving motor 3 and the separation cavity 5; the driving motor 3 is fixedly mounted at the bottom of the supporting frame 1 through a motor bracket (not shown in the drawings, and configured according to a conventional design in the art, and not discussed more in the detailed embodiment of the present application), and the separation cavity 5 is mounted on the supporting frame 1 through a mounting flange 50. The separation cavity end cover 51 is arranged on the top surface of the separation cavity 5, so that the inner cavity of the separation cavity 5 is ensured to form a closed environment, starch is prevented from overflowing during starch separation, and the separation cavity end cover 51 is connected with the separation cavity 5 through threads or screws; a discharge pipe 511 and a water inlet pipe 512 are respectively arranged on one side of the separation cavity end cover 51, the discharge pipe 511 and the water inlet pipe 512 are respectively communicated with the inner cavity of the separation cavity 2, a filter plate 52 is fixedly arranged in the middle of the inner cavity of the separation cavity 5, a partition plate 53 is fixedly arranged at the bottom of the inner cavity of the separation cavity 5, a plurality of positioning pins 531 are uniformly distributed on the upper end surface of the partition plate 53, a plurality of first leakage holes 532 are uniformly arranged on the partition plate 53, the positioning pins 531 and the first leakage holes 532 are in different positions (namely the positioning pins 531 and the first leakage holes 532 are not mutually interfered), a water outlet 54 is arranged at the bottom of the separation cavity 5, and the water outlet 54 is communicated with an external water outlet pipe 540; the inner wall of the separation chamber 5 is provided with a spiral flow channel groove 55.
The first separating component 6 comprises a first shaft tube 61, a first gear 62 and a first spiral disc 63, wherein a first through hole 610 is formed in the middle of the first shaft tube 61, one end of the first shaft tube 61 is located at the upper end of the partition plate 53, the other end of the first shaft tube 61 sequentially penetrates through the filter plate 52 and the separating chamber end cover 51 and is located at the upper end of the separating chamber end cover 51 to be fixedly sleeved with the first gear 62, and the first spiral disc 63 is fixedly sleeved on the outer wall of the first shaft tube 61 and is located between the filter plate 52 and the partition plate 53; the second separating disc 7 assembly comprises a second shaft pipe 71, a second gear 72 and a second spiral disc 73, the second shaft pipe 71 is sleeved on the outer wall of the first shaft pipe 61 and is rotatably connected with the first shaft pipe 71 through a sealing bearing 611, one end of the second shaft pipe 71 is positioned at the upper end of the filter plate 52, the other end of the second shaft pipe 71 penetrates through the separating chamber end cover 51 and is fixedly sleeved with the second gear 72 at the upper end of the separating chamber end cover 51, the second gear 72 is positioned at the lower end of the first gear 62, the second spiral disc 73 is fixedly sleeved on the outer wall of the second shaft pipe 71, and the second spiral disc 73 is positioned between the filter plate 52 and the separating chamber end cover 51; the distributor component 8 comprises a mandrel 81, a distribution chamber 82 and a flange plate 83, the mandrel 81 penetrates through a first through hole 610, a second through hole 810 is arranged in the middle of the mandrel 81, the upper end of the mandrel 81 is higher than the upper end of a first shaft pipe 61, the lower end of the mandrel 81 is lower than the lower end of the first shaft pipe 61, the upper end of the mandrel 81 is communicated with a feeding pipe 80, the inner wall of the feeding pipe 80 is rotatably connected with the outer wall of the mandrel 81 through a sealing bearing 611, the lower end of the mandrel 81 is fixedly connected with the distribution chamber 82, the distribution chamber 82 is in a hollow funnel shape, and the inner cavity is communicated with the second through hole 810, a plurality of distribution through holes 820 are uniformly distributed on the outer wall of the distribution cavity 82, the lower end of the distribution cavity 82 is fixedly connected with the flange plate 83, the end surface of the lower end of the flange plate 83 is contacted with the end surface of the upper end of the partition plate 53, the flange plate 83 is provided with a positioning waist hole 831 corresponding to the positioning pin 531, and the flange plate 83 is provided with a second leakage hole 832 corresponding to the first leakage hole 532. The first shaft pipe 61 and the second shaft pipe 71 are connected through a seal bearing 611; the first shaft tube 61 and the mandrel 81 are sealed through a sealing ring 612; the first shaft pipe 61, the second shaft pipe 71 and the mandrel 81 are in a straight line with the central axis of the separation cavity 5. The spiral pitch of the second spiral disk 73 is smaller than that of the first spiral disk 63; preferably, the spiral pitch of the first spiral disk 63 is 1.5 to 2.5 times of the spiral pitch of the second spiral disk 73.
The transmission assembly 4 comprises a first belt wheel 41, a transmission belt 42 and a second belt wheel 43, the first belt wheel 41 is fixedly sleeved on the outer wall of the first shaft tube 61 and is positioned at the upper end of the first gear 62, the second belt wheel 43 is fixedly sleeved at the output end of the driving motor 3, and the first belt wheel 41 and the second belt wheel 43 are transmitted through the transmission belt 42; the L-shaped bracket 2 is provided with a gear pair 20, a small gear of the gear pair 20 is meshed with the first gear 62, and a large gear of the gear pair 20 is meshed with the second gear 72. The number of teeth of the large gear of the gear pair 20 is greater than the number of teeth of the second gear 72, and the number of teeth of the small gear of the gear pair 20 is less than the number of teeth of the first gear 62.
A feeding electromagnetic valve 801 is arranged at the joint of the mandrel 81 and the feeding pipe 80; the discharge pipe 511 is provided with a discharge electromagnetic valve 5111; the water inlet pipe 512 is provided with a water inlet electromagnetic valve 5121; the water outlet pipe 540 is provided with a water outlet solenoid valve 5401. The electromagnetic valve is used for controlling the on-off of each pipeline.
The double-disc separating device further comprises a central control device, wherein the central control device is electrically connected with the driving motor 3, the feeding electromagnetic valve 801, the discharging electromagnetic valve 5111, the water inlet electromagnetic valve 5121 and the water outlet electromagnetic valve 5401.
The automatic separation method comprises the following specific steps:
s001, firstly, conducting a feed pipe 80 and a discharge pipe 511, and sealing a water inlet pipe 512 and a water outlet pipe 540; then, the driving motor 3 is started to rotate forward, the driving motor 3 drives the first shaft tube 61 to rotate forward through the transmission assembly 4, the first shaft tube 61 drives the second shaft tube 71 to rotate in the same direction through the gear pair 20, meanwhile, the first shaft tube 61 drives the mandrel 81 to rotate (through the relative friction force of the sealing ring 612), the mandrel 81 rotates to drive the flange 83 and the partition plate 53 to rotate relatively, the positioning waist hole 831 and the positioning pin 531 move relatively, when the positioning pin 531 abuts against one side of the positioning waist hole 831, the first leakage hole 532 and the second leakage hole 832 are not overlapped completely, the lower part of the separation cavity 5 is sealed, and the flange 83 and the mandrel 81 do not rotate any more due to the hard limit of the partition plate 53.
S002, ensuring that the driving motor 3 continuously rotates forwards, introducing mixed starch milk to be separated into the feeding pipe 80, enabling the mixed starch milk to enter the separation cavity 5 through the second through hole 801 and the distribution through hole 820, separating by the first spiral disc 63, filtering larger particle proteins by the filter plate 52, performing secondary separation by the second spiral disc 83, and finally collecting through the discharging pipe 511; the starch milk collected by the discharging pipe 511 is washed with water-soluble substances by an external washing device, then dried, milled and finally preserved.
S003, after the separation is finished, sealing the feed pipe 80 and the discharge pipe 511, and communicating the water inlet pipe 512 and the water outlet pipe 540; then control driving motor 3 and rotate reversely, driving motor 3 drives first central siphon 61 and rotates reversely through drive assembly 4, first central siphon 61 drives second central siphon 71 and rotates in the same direction through gear pair 20, first central siphon 61 drives dabber 81 to rotate simultaneously, dabber 81 rotates and drives and takes place relative rotation between ring flange 83 and the partition plate 53, take place relative position and move between location waist hole 831 and the locating pin 531, when locating pin 531 withstands location waist hole 831 opposite side, first small opening 532 and second small opening 832 coincide completely, the separation chamber 5 lower part communicates, ring flange 83 and dabber 81 are no longer rotated because the hard spacing of partition plate 53.
And S004, ensuring that the driving motor 3 rotates reversely continuously, introducing cleaning water into the water inlet pipe 540, enabling the cleaning water to enter the separation chamber 5, and generating downward impact force and spiral force towards two ends under the driving of the rotating centrifugal force of the first spiral disk 63 and the second spiral disk 73, so as to impact and clean the separation chamber 5, the filter plate 52 and the partition plate 53.
S005, repeating the steps S001 to S004.
Since the number of teeth of the large gear of the gear pair 20 is greater than that of the second gear 72, the number of teeth of the small gear of the gear pair 20 is less than that of the first gear 62, meanwhile, the first shaft tube 61 and the second shaft tube 71 are rotatably connected through the sealing bearing 611 (i.e. the friction force between the first shaft tube 61 and the second shaft tube 71 is small during the rotation process), the first shaft tube 61 and the core shaft 81 are connected through the sealing ring 612 (i.e. the first shaft tube 61 is prevented by the friction force generated by the hard limit of the sealing ring 612 and the core shaft 81 during the rotation process), so that the rotation speed of the second spiral disk 73 is significantly higher than that of the first spiral disk 63, thereby forming that the pressure of the upper end of the separation chamber 5 is higher than the pressure of the lower end (namely, the pressure difference is formed between the upper end and the lower end of the filter plate 52), thereby realizing that the larger-particle protein after primary separation is rapidly filtered (namely, the filtration is carried out through the pressure difference), ensuring the effectiveness and the high efficiency of the separation, and avoiding the large-particle protein from being mixed with the starch milk again; meanwhile, because the spiral pitch of the second spiral disk 73 is smaller than that of the first spiral disk 63, and the rotation speed difference is matched, proteins with smaller particle sizes can be fully separated at the second spiral disk 73, and the separation thoroughness is ensured.
Through the setting of spiral runner groove 55, make the oblique angle of separation chamber 5 inner wall both sides different (as shown in fig. 6), thereby make the oblique angle of the vertical flow direction one side of starch milk (flow upward promptly) big, cooperate the rotation centrifugal force of first spiral disk 63 and second spiral disk 73, and then guarantee when protein is separated and deposit at the inner wall of separation chamber 6 (protein density is greater than the density of starch milk), spiral guiding gutter 55 can effectively hinder the protein that separates to flow along with starch milk, thereby guarantee that protein effectively deposits on separation chamber 5 inner wall and filter 52.
When the process cleaning water is introduced to clean the deposited protein, the second spiral disc 73 has higher rotating speed, so that the process water is driven to flow faster, and the method is more suitable for cleaning the protein deposited on the upper part and with small particle size (the small particle size is more prone to caking); meanwhile, the rotation speed is different, and the water pressure at the upper end and the lower end of the filter plate 52 is different, so that the large-particle protein on the holes of the filter plate 52 can be cleaned. Furthermore, the spiral diversion trench 55 is arranged to reduce the oblique angle of one side of the process cleaning water in the vertical flow direction (i.e. downward flow), so that the flow of the process cleaning water is guided, and the protein in the spiral diversion trench 55 can be cleaned more conveniently. Meanwhile, the spiral diversion trench 55 is arranged in the separation cavity 5 in a protruding manner and is matched with the impulsive force action generated by the spiral disc, so that the process water flowing at high speed is disturbed, the flowing of the process water is more disordered, the flushing action of the process water is enhanced, and the cleaning is more thorough.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An automatic separation method of protein in corn starch production is characterized in that:
the double-disc separation device is used for separation and comprises a support frame (1), an L-shaped support (2), a driving motor (3), a transmission component (4), a separation cavity (5), a first separation component (6), a second separation component (7) and a distributor component (8), wherein the support frame (1) is respectively provided with the L-shaped support (2), the driving motor (3) and the separation cavity (5) are arranged on two sides of the support frame (1), and the L-shaped support (2) is arranged on the top of the support frame (1) between the driving motor (3) and the separation cavity (5); a separation cavity end cover (51) is mounted on the top surface of the separation cavity (5), a discharge pipe (511) and a water inlet pipe (512) are respectively arranged on one side of the separation cavity end cover (51), the discharge pipe (511) and the water inlet pipe (512) are respectively communicated with the inner cavity of the separation cavity (5), a filter plate (52) is fixedly arranged in the middle of the inner cavity of the separation cavity (5), a partition plate (53) is fixedly arranged at the bottom of the inner cavity of the separation cavity (5), a plurality of positioning pins (531) are uniformly distributed on the upper end surface of the partition plate (53), a plurality of first leakage holes (532) are uniformly arranged on the partition plate (53), the positioning pins (531) and the first leakage holes (532) are different in position, a water outlet (54) is arranged at the bottom of the separation cavity (5), and the water outlet (54) is communicated with an external water outlet pipe (540); the first separation assembly (6) comprises a first shaft tube (61), a first gear (62) and a first spiral disc (63), a first through hole (610) is formed in the middle of the first shaft tube (61), one end of the first shaft tube (61) is located at the upper end of the partition plate (53), the other end of the first shaft tube (61) sequentially penetrates through the filter plate (52) and the separation chamber end cover (51) and is located at the upper end of the separation chamber end cover (51) and fixedly sleeved with the first gear (62), and the first spiral disc (63) is fixedly sleeved on the outer wall of the first shaft tube (61) and is located between the filter plate (52) and the partition plate (53); the second separation assembly (7) comprises a second shaft pipe (71), a second gear (72) and a second spiral disc (73), the second shaft pipe (71) is sleeved on the outer wall of the first shaft pipe (61) and is rotatably connected with the first shaft pipe (61), one end of the second shaft pipe (71) is located at the upper end of the filter plate (52), the other end of the second shaft pipe penetrates through the separation chamber end cover (51) and is located at the upper end of the separation chamber end cover (51) and is fixedly sleeved with the second gear (72), the second gear (72) is located at the lower end of the first gear (62), the second spiral disc (73) is fixedly sleeved on the outer wall of the second shaft pipe (71) and the second spiral disc (73) is located between the filter plate (52) and the separation chamber end cover (51); distributor subassembly (8) includes dabber (81), distribution chamber (82) and ring flange (83), dabber (81) runs through first through-hole (610) just dabber (81) middle part sets up second through-hole (810), dabber (81) upper end tip is higher than first central siphon (61) upper end tip, just dabber (81) lower extreme tip is less than first central siphon (61) lower extreme tip, dabber (81) upper end intercommunication a inlet pipe (80), dabber (81) lower extreme fixed connection distribution chamber (82), distribution chamber (82) are inside hollow funnel-shaped, and its inside cavity with second through-hole (810) intercommunication, a plurality of distribution through-holes (820) of distribution chamber (82) outer wall evenly distributed, distribution chamber (82) lower extreme fixed connection ring flange (83) just ring flange (83) lower extreme terminal surface with partition panel (53) upper end face contact, the flange plate (83) is provided with a positioning waist hole (831) corresponding to the positioning pin (631), and the flange plate (83) is provided with a second leakage hole (832) corresponding to the first leakage hole (632); the transmission assembly (4) comprises a first belt wheel (41), a transmission belt (42) and a second belt wheel (43), the first belt wheel (41) is fixedly sleeved on the outer wall of the first shaft tube (61) and is positioned at the upper end of the first gear (62), the second belt wheel (43) is fixedly sleeved on the output end of the driving motor (3), and the first belt wheel (41) and the second belt wheel (43) are transmitted through the transmission belt (42); a gear pair (20) is arranged on the L-shaped bracket (2), a pinion of the gear pair (20) is meshed with the first gear (62), and a bull gear of the gear pair (20) is meshed with the second gear (72);
the automatic separation method comprises the following specific steps:
s001, firstly, conducting a feed pipe (80) and a discharge pipe (511) and sealing a water inlet pipe (512) and a water outlet pipe (540); then the driving motor (3) is started to rotate forwards, the driving motor (3) drives the first shaft tube (61) to rotate forwards through the transmission assembly (4), the first shaft tube (61) drives the second shaft tube (71) to rotate in the same direction through the gear pair (20), meanwhile, the first shaft tube (61) drives the mandrel (81) to rotate, the mandrel (81) rotates to drive the flange (83) and the partition plate (53) to rotate relatively, the positioning waist hole (831) and the positioning pin (531) to move relatively, when the positioning pin (531) props against one side of the positioning waist hole (831), the first leakage hole (532) and the second leakage hole (832) are not overlapped completely, the lower part of the separation cavity (5) is sealed, and the flange (83) and the mandrel (81) do not rotate any more due to the hard limiting of the partition plate (53);
s002, ensuring that the driving motor (3) rotates forwards continuously, introducing mixed starch milk to be separated into the feeding pipe (80), enabling the mixed starch milk to enter the separation cavity (5) through the second through hole (810) and the distribution through hole (820), separating by the first spiral disc (63), filtering larger particle protein by the filter plate (52), performing secondary separation by the second spiral disc (83), and finally collecting the starch milk through the discharging pipe (511);
s003, after the separation is finished, sealing the feed pipe (80) and the discharge pipe (511), and conducting the water inlet pipe (512) and the water outlet pipe (540); then controlling a driving motor (3) to reversely rotate, wherein the driving motor (3) drives a first shaft tube (61) to reversely rotate through a transmission assembly (4), the first shaft tube (61) drives a second shaft tube (71) to rotate in the same direction through a gear pair (20), meanwhile, the first shaft tube (61) drives a mandrel (81) to rotate, the mandrel (81) rotates to drive a flange plate (83) and a partition plate (53) to rotate relatively, a positioning waist hole (831) and a positioning pin (531) to move relatively, when the positioning pin (531) props against the other side of the positioning waist hole (831), the first leakage hole (532) and the second leakage hole (832) are completely overlapped, the lower part of a separation cavity (5) is communicated, and the flange plate (83) and the mandrel (81) do not rotate any more due to the hard limit of the partition plate (53);
s004, ensuring that the driving motor (3) rotates reversely continuously, introducing cleaning water into the water inlet pipe (80), enabling the cleaning water to enter the separation cavity (5), and generating downward impulsive force and spiral force towards two ends under the driving of the rotating centrifugal force of the first spiral disc (63) and the second spiral disc (83) so as to impact and clean the separation cavity (5), the filter plate (52) and the partition plate (53);
s005, repeating the steps S001 to S004.
2. The method for automatically separating proteins in the production of corn starch as claimed in claim 1, wherein: and washing water-soluble substances in the starch milk collected by the discharge pipe (511) in the step S002 by an external washing device, drying, grinding, and storing.
3. A method for automated separation of proteins in the production of corn starch according to any of claims 1 or 2, characterized in that: the driving motor (3) is fixedly arranged at the bottom of the support frame (1) through a motor bracket.
4. A method for automated separation of proteins in the production of corn starch according to any one of claims 1 to 3, characterized in that: separation chamber end cover (51) with separation chamber (5) are connected through screw thread or screw, separation chamber (5) are installed through mounting flange (50) on support frame (1).
5. The method for automatically separating proteins in the production of corn starch as claimed in claim 1, wherein: the first shaft pipe (61) is connected with the second shaft pipe (71) through a sealing bearing (611); the first shaft tube (61) and the mandrel (81) are sealed through a sealing ring (612).
6. The method for automatically separating proteins in the production of corn starch as claimed in claim 1, wherein: the spiral pitch of the second spiral disc (73) is smaller than that of the first spiral disc (63).
7. The method for automatically separating proteins in the production of corn starch as claimed in claim 1, wherein: a feeding electromagnetic valve (801) is arranged at the joint of the feeding pipe (80); a discharge electromagnetic valve (5111) is arranged on the discharge pipe (511); the water inlet pipe (512) is provided with a water inlet electromagnetic valve (5121); and a water outlet electromagnetic valve (5401) is arranged on the external water outlet pipe (540).
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