Enzymatic modified starch reaction device

Abstract

The invention relates to the technical field of starch processing, in particular to an enzymic method modified starch reaction device which comprises a charging barrel and a rotary barrel coaxially located on the inner side of the charging barrel, the charging barrel and the rotary barrel form a horizontal annular cavity, the rotary barrel is rotatably arranged on the charging barrel, and the rotary barrel is arranged in the annular cavity. A plurality of partition plates are distributed in the annular cavity in the circumferential direction of the annular cavity, the partition plates are fixed to the rotary drum, and the annular cavity is divided into a plurality of independent cavities through the partition plates; starch milk and an enzyme preparation react in a fluidization manner, so that starch can be continuously treated, waste of waiting time of other starch during starch reaction in the device is avoided, the working efficiency is improved, and meanwhile, a material fluidization manner and a material rotation flowing manner are utilized, so that the starch can be continuously treated. The double fluidization effect on materials can be achieved, the mixing uniformity of starch milk and an enzyme preparation is improved, the starch reaction degree can be conveniently kept consistent, and the starch denaturation treatment effect is improved.

Description

Technical Field

[0001] This invention relates to the technical field of starch processing, and in particular to an enzymatic modified starch reaction apparatus. Background Technology

[0002] Enzymatic modification of starch is one of the important methods in starch modification technology. By changing the properties of starch, it can improve the quality and functionality of food. At the same time, due to its advantages such as mild reaction conditions and controllable product characteristics, enzymatic modified starch is widely used in the fields of food additives and pharmaceutical excipients.

[0003] Enzymatic denaturation of starch involves altering the properties of starch by treating native starch milk with biological enzymes. The core principle is to use biological enzymes such as α-amylase and glucoamylase to catalyze the hydrolysis of glycosidic bonds in starch molecules, generating dextrins and sugars of different lengths.

[0004] Traditional reaction devices are mainly closed containers with stirring functions. Bio-enzymes and gelatinized starch slurry are placed in the container and stirred. The materials are then subjected to a specified temperature, during which the bio-enzymes hydrolyze starch molecules, thereby achieving a denaturation reaction. This denaturation reaction typically takes about 45 minutes. However, this device can only process starch in batches. That is, the next batch can only be processed after the starch in the device has completed the reaction and been discharged. Its processing continuity is poor, the working cycle is long, and it is not suitable for the pace of modern high-efficiency production. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an enzymatic modified starch reaction device, the specific technical solution of which is as follows: An enzymatic modified starch reaction device of the present invention includes a material cylinder and a rotating cylinder coaxially located inside the material cylinder. The material cylinder and the rotating cylinder form a horizontal annular chamber, and the rotating cylinder is rotatably disposed on the material cylinder. A plurality of partitions are distributed along the circumference of the annular chamber. The partitions are fixed on the rotating cylinder, and the plurality of partitions divide the annular chamber into multiple independent chambers. A shoulder is provided on the side wall of the material cylinder in the annular chamber. The shoulder consists of a mesh area and a planar area. The mesh area is used to diffuse gas into the annular chamber. Two feed pipes are connected to the outer wall of the material cylinder. A discharge pipe is connected to the bottom of the material cylinder. The planar area corresponds to the discharge pipe. At least one partition is provided between the discharge pipe and any of the feed pipes, and between the two feed pipes.

[0006] Furthermore, an annular body and a collar are provided on the outer wall of the barrel, and an air inlet pipe is provided on the collar; The ring body has a sliding surface one, a sealing surface, a pneumatic cone surface and a sliding surface two. The sliding surface one slides with the outer wall of the material cylinder. The sealing surface is used to seal the mesh area on the shoulder. The sliding surface two slides with the collar. The collar, the pneumatic cone surface and the sliding surface two form an annular air guide chamber. The air inlet pipe is connected to the annular air guide chamber. The air pressure in the annular air guide chamber acts on the pneumatic cone surface. The ring body and the barrel are connected by several springs.

[0007] Furthermore, both the shoulder and the sealing surface are inclined toward the axis of the material cylinder.

[0008] Furthermore, a plurality of guide strips are provided on the outer wall of the rotating drum in the independent chamber. The guide strips are used to guide the material near the outer wall of the rotating drum toward the center of the independent chamber. The curvature and length of the plurality of guide strips gradually increase from top to bottom.

[0009] Furthermore, the bottom of the material cylinder is provided with an arc-shaped drainage surface.

[0010] Furthermore, each of the independent chambers is slidably equipped with a piston, which divides the independent chamber into a lower pressurized chamber and an upper empty chamber. An air guide pipe is provided in the empty chamber. One end of the air guide pipe slides vertically through the piston, and the other end of the air guide pipe passes horizontally through the rotating cylinder and is fixedly connected to each other. The piston and the air guide pipe are connected by a spring. The bottom of the air guide pipe is provided with a sealing plate, and an air hole is opened on one side wall of the air guide pipe in the empty chamber, at least a part of the air hole overlaps with the piston.

[0011] Furthermore, a second air guide pipe is connected to the collar, and a pressure valve is provided on the second air guide pipe. The output end of the second air guide pipe is connected to the pressurization chamber that has moved to the position of the discharge pipe.

[0012] Furthermore, a sealing ring is rotatably provided on the inner wall of the material cylinder, the sealing ring is connected to several of the partitions, and several material ports are opened on the sealing ring. The material ports correspond to the pressurization chamber and cooperate with the feed pipe.

[0013] The beneficial effects of this invention are as follows: By using a fluidized reaction to allow starch milk and enzyme preparations to react, starch can be processed continuously, avoiding the wasted time that other starches have to wait while the starch in the device is reacting, thus improving work efficiency. At the same time, by using gas fluidization and material rotation flow, a dual fluidization effect can be achieved, improving the uniformity of mixing starch milk and enzyme preparations, making it easier to keep the degree of starch reaction consistent, and improving the starch modification treatment effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of cross-section structure; Figure 3 yes Figure 1 Explosion structure diagram; Figure 4 This is a partially enlarged structural diagram of the collar in an embodiment of the present invention; Figure 5 This is a schematic cross-sectional view of the barrel in an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the rotating cylinder in an embodiment of the present invention.

[0016] Figure label: 1. Material cylinder; 2. Rotary drum; 3. Baffle plate; 4. Shoulder; 5. Mesh area; 6. Planar area; 7. Feed pipe; 8. Discharge pipe; 9. Ring body; 10. Collar; 11. Air inlet pipe; 12. Sliding surface one; 13. Sealing surface; 14. Pneumatic cone surface; 15. Sliding surface two; 16. Spring one; 17. Drain strip; 18. Arc-shaped drainage surface; 19. Piston; 20. Spring two; 21. Air guide pipe one; 22. Sealing plate; 23. Air hole; 24. Air guide pipe two; 25. Pressure valve; 26. Sealing ring; 27. Material inlet. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0020] like Figures 1 to 6 As shown, an enzymatic modified starch reaction device of the present invention includes a material cylinder 1 and a rotating cylinder 2 coaxially located inside the material cylinder 1. The material cylinder 1 and the rotating cylinder 2 form a horizontal annular chamber, and the rotating cylinder 2 is rotatably mounted on the material cylinder 1. Several partitions 3 are distributed along the circumference of the annular chamber. The partitions 3 are fixed on the rotating cylinder 2, and the several partitions 3 divide the annular chamber into multiple independent chambers. A shoulder 4 is provided on the side wall of the material cylinder 1 inside the annular chamber. The shoulder 4 is composed of a mesh area 5 and a planar area 6. The mesh area 5 is used to diffuse gas into the annular chamber. Two feed pipes 7 are connected to the outer wall of the material cylinder 1. A discharge pipe 8 is connected to the bottom of the material cylinder 1. The planar area 6 corresponds to the discharge pipe 8. At least one partition 3 is provided between the discharge pipe 8 and any one of the feed pipes 7, and between the two feed pipes 7.

[0021] In this invention, the axes of both the material cylinder 1 and the rotating cylinder 2 are vertical. The rotating cylinder 2 passes vertically through the material cylinder 1, and the outer wall of the rotating cylinder 2 and the internal space of the material cylinder 1 form an annular chamber. This chamber is mainly used to transport gelatinized starch milk and enzyme preparations containing biological enzymes. Several partitions 3 within the annular chamber can divide the annular chamber into multiple independent chambers in the circumferential direction of the rotating cylinder 2. Each independent chamber can be used to provide reaction space for the mixture of starch milk and enzyme preparations. Since the rotating cylinder 2 can be rotatably mounted on the material cylinder 1, each independent chamber can move synchronously with the rotating cylinder 2, thereby realizing the function of transporting the mixture. Two feed pipes 7 and a discharge pipe 8 are staggered in the circumferential direction of the rotating cylinder 2. The two feed pipes 7 can be used to introduce starch milk and enzyme preparations into the independent chambers, and the discharge pipe 8 can be used to discharge the mixture after the reaction is completed. Figure 1As shown, the two feed pipes 7 and the discharge pipe 8 are located on the same side of the material cylinder 1. The material is introduced into the independent chamber through the two feed pipes 7. The independent chamber initially rotates in a direction away from the discharge pipe 8, and then rotates back to the position of the discharge pipe 8. At this time, the material in the independent chamber will be discharged through the discharge pipe 8. The empty independent chamber continues to move to the position of the two feed pipes 7 and repeatedly receives material, thereby realizing the continuous enzymatic denaturation treatment of starch.

[0022] In use, the rotating drum 2 and its several baffles 3 rotate synchronously. Starch milk and enzyme preparations are poured into the independent chambers sequentially through two feed pipes 7. The mesh area 5 on the shoulder 4 introduces gas into the independent chambers. Since the flat area 6 corresponds to the discharge pipe 8 and the mesh area 5 corresponds to the remaining position of the drum 1, the mesh area 5 can cover most of the active area of ​​the independent chambers. The gas introduced into the independent chambers by the mesh area 5 will form bubbles and float to the surface. As a fluidizing medium, the gas can create sufficient gaps between the mixtures around it and allow them to move freely. This makes the mixtures evenly distributed and improves the reaction effect. At the same time, as the gas carries the mixtures upward, the mixtures in other positions in the independent chambers will replenish the gas's vicinity, thereby making the independent chambers more fluid. The mixture forms a rotating flow state, allowing all the mixtures in the independent chambers to be miscible with each other, avoiding fluidization only of the mixture around the gas rising path. This achieves a dual fluidization effect. The mixture moves with the rotating drum 2 during the fluidization reaction. After the reaction is complete, it moves to the discharge pipe 8 and is discharged. Since the planar area 6 at this position does not discharge gas into the independent chambers, the mixture can be discharged smoothly, avoiding excessive kinetic energy and material collection difficulties caused by a large amount of gas carrying the mixture through the discharge pipe 8. The independent chamber, having completed its discharge, continues to move with the rotating drum 2 to the two feed pipes 7 to receive material again, thus achieving continuous modification processing of starch. Figure 1 As shown, the rotating drum 2 can be driven to rotate by a motor, belt and other structures.

[0023] By using a fluidized reaction to allow starch milk and enzyme preparations to react, starch can be processed continuously, avoiding the wasted time that other starches have to wait while the starch in the device is reacting, thus improving work efficiency. At the same time, by using gas fluidization and material rotation flow, a dual fluidization effect can be achieved, improving the uniformity of mixing starch milk and enzyme preparations, making it easier to keep the degree of starch reaction consistent, and improving the starch modification treatment effect.

[0024] Furthermore, an annular body 9 and a collar 10 are provided on the outer wall of the material cylinder 1, and an air inlet pipe 11 is provided on the collar 10; The ring body 9 has a sliding surface 12, a sealing surface 13, a pneumatic cone surface 14, and a sliding surface 15. The sliding surface 12 slides with the outer wall of the material cylinder 1. The sealing surface 13 is used to seal the mesh area 5 on the shoulder 4. The sliding surface 15 slides with the collar 10. The collar 10, the pneumatic cone surface 14, and the sliding surface 15 form an annular air guide chamber. The air inlet pipe 11 is connected to the annular air guide chamber. The air pressure in the annular air guide chamber acts on the pneumatic cone surface 14. The ring 9 and the barrel 1 are connected by several springs 16.

[0025] Using several springs 16, an upward elastic thrust can be provided to the ring 9, causing the sealing surface 13 on the ring 9 to seal the mesh area 5, preventing material in the independent chamber from leaking out of the material cylinder 1 through the sealing surface 13. When external gas is pumped into the annular gas guide chamber through the air inlet pipe 11, the gas pressure increases, and the gas pressure acts on the pneumatic cone surface 14 and generates a downward lateral thrust on the ring 9, causing the ring 9 to move downward. At this time, the sealing surface 13 stops sealing the mesh area 5, and the springs 16 undergo elastic deformation. The gas in the annular gas guide chamber can flow between the mesh area 5 and the sealing surface 13 and be introduced into the independent chamber through the mesh area 5, thereby realizing the unidirectional introduction of gas. At the same time, this structure can make the gas pass through the mesh area 5 evenly, avoiding gas concentration. The elastic force of the springs 16 on the ring 9 can increase the flow rate of the gas introduced into the independent chamber, thereby improving the fluidization effect.

[0026] Furthermore, both the shoulder 4 and the sealing surface 13 are inclined towards the axis of the material cylinder 1; such as Figure 5 As shown, the inclined setting of the shoulder 4 facilitates the material to slide off the shoulder 4 in a natural state, thereby preventing the material from accumulating on the shoulder 4 during discharge. The inclined setting of the sealing surface 13 is mainly to cooperate with the shoulder 4.

[0027] Furthermore, a number of guide strips 17 are provided on the outer wall of the rotating drum 2 in the independent chamber. The guide strips 17 are used to guide the material near the outer wall of the rotating drum 2 towards the center of the independent chamber. The curvature and length of the guide strips 17 gradually increase from top to bottom.

[0028] like Figure 2 As shown, when the mixture in the independent chamber rotates and flows, its flow mode is a vertical circulating flow. However, the material in the middle position of this flow trajectory has poor fluidity, which leads to insufficient mixing uniformity and incomplete starch milk reaction at this position. To improve the fluidization effect, several guide strips 17 can be set to guide the mixture. When the mixture flows downward along the outer wall of the rotating drum 2, the guide strips 17 can guide part of the mixture to impact the material in the middle position, thereby making the mixture in the independent chamber completely fluidized.

[0029] Furthermore, an arc-shaped flow guide surface 18 is provided at the bottom of the material cylinder 1; when the mixture near the outer wall of the rotating cylinder 2 flows downward, the mixture can flow upward in the opposite direction near the inner wall of the material cylinder 1 through the arc-shaped flow guide surface 18, thereby guiding and conveying the mixture and avoiding dead corners at the bottom of the material cylinder 1 that would cause the mixture to accumulate.

[0030] Furthermore, each independent chamber is slidably equipped with a piston 19, which divides the independent chamber into a lower pressurized chamber and an upper empty chamber. An air guide pipe 21 is installed in the empty chamber. One end of the air guide pipe 21 slides vertically through the piston 19, and the other end of the air guide pipe 21 passes horizontally through the rotating cylinder 2 and is fixedly connected to each other. The piston 19 and the air guide pipe 21 are connected by a spring 20. A sealing plate 22 is provided at the bottom of the air guide pipe 21, and an air hole 23 is provided on the side wall of the air guide pipe 21 in the empty chamber. At least part of the air hole 23 overlaps with the piston 19.

[0031] The sealing plate 22 can block the bottom of the gas guide tube 21 and limit the position of the piston 19 on the gas guide tube 21. The spring 20 provides a downward elastic thrust to the piston 19. In the natural state, the piston 19 abuts against the sealing plate 22, and at the same time, the piston 19 partially blocks the gas hole 23. The empty chamber and the gas guide tube 21 are isolated from the pressurization chamber. When the mixture in the pressurization chamber fluidizes and the gas continues to increase, the pressure in the pressurization chamber increases. The high-pressure environment can enhance the solubility of gas in liquid, improve the contact effect of gas-solid-liquid three phases, thereby improving the mass transfer efficiency. At the same time, the higher pressure can make the fluidized particles move more vigorously, promote the radial mixing of materials, improve the uniformity of the mixture concentration, and the increased pressure can reduce the bubble size, making the contact surface between the enzyme preparation and starch milk more uniform, which is conducive to the uniform enzymatic reaction.

[0032] When the pressure in the pressurization chamber continues to rise, the air pressure will push the piston 19 upward, and part of the air hole 23 will be exposed in the pressurization chamber. At this time, the excess gas in the pressurization chamber can be discharged through the air hole 23 and the air guide pipe 21, thereby achieving the effect of exhaust and maintaining the pressure in the pressurization chamber.

[0033] Furthermore, a second air guide pipe 24 is connected to the collar 10, and a pressure valve 25 is installed on the second air guide pipe 24. The output end of the second air guide pipe 24 is connected to the pressurization chamber that has moved to the position of the discharge pipe 8.

[0034] Part of the gas in the annular gas guide chamber can be introduced into the pressurized chamber at the position of the discharge pipe 8 through the gas guide pipe 24 and the pressure valve 25. The airflow is used to help discharge the material. The pressure valve 25 can reduce the airflow pressure, thereby avoiding excessive pressure and excessive material discharge kinetic energy. At the same time, the pressure valve 25 can ensure that the pressure in the annular gas guide chamber is maintained at a specified height, and prevent the gas in the annular gas guide chamber from being discharged in large quantities through the gas guide pipe 24 and the discharge pipe 8 due to the setting of the piston 19 and the spring 20 in the independent chamber.

[0035] Furthermore, a sealing ring 26 is rotatably provided on the inner wall of the material cylinder 1. The sealing ring 26 is connected to several partitions 3. Several material ports 27 are opened on the sealing ring 26. The material ports 27 correspond to the pressurization chamber and cooperate with the feed pipe 7.

[0036] The height positions of the sealing ring 26 and the feed inlet 27 correspond to those of the feed pipe 7. When the drum 2 rotates, the sealing ring 26 and the feed inlet 27 move synchronously. The sealing ring 26 blocks the output end of the feed pipe 7. When the feed inlet 27 moves to the output end position of the feed pipe 7, the material in the feed pipe 7 can be discharged into the pressurization chamber through the feed inlet 27. When the feed inlet 27 is misaligned with the feed pipe 7, the sealing ring 26 blocks the feed pipe 7 again, thereby realizing the quantitative feeding of materials. Since the amount of starch milk and enzyme preparation added is different, if both feed pipes 7 can be fed through the feed inlet 27, the feeding amount can be adjusted by setting the diameter of the two feed pipes 7 to be different, or the shape of the feed inlet 27 in the vertical direction can be set to be conical, with the feed pipe 7 supplying starch milk corresponding to the wider area of ​​the cone, and the feed pipe 7 supplying enzyme preparation corresponding to the narrower area of ​​the cone.

[0037] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An enzymatic modified starch reaction apparatus, characterized in that, The device includes a material cylinder and a rotating cylinder coaxially located inside the material cylinder. The material cylinder and the rotating cylinder form a horizontal annular chamber, and the rotating cylinder is rotatably mounted on the material cylinder. Several partitions are distributed along the circumference of the annular chamber. The partitions are fixed to the rotating cylinder, and the several partitions divide the annular chamber into multiple independent chambers. A shoulder is provided on the side wall of the material cylinder in the annular chamber. The shoulder consists of a mesh area and a planar area. The mesh area is used to diffuse gas into the annular chamber. Two feed pipes are connected to the outer wall of the material cylinder. A discharge pipe is connected to the bottom of the material cylinder. The planar area corresponds to the discharge pipe. At least one partition is provided between the discharge pipe and any of the feed pipes, and between the two feed pipes.

2. The enzymatic modified starch reaction apparatus according to claim 1, characterized in that, The outer wall of the material cylinder is provided with a ring and a collar, and the collar is provided with an air inlet pipe; The ring body has a sliding surface one, a sealing surface, a pneumatic cone surface and a sliding surface two. The sliding surface one slides with the outer wall of the material cylinder. The sealing surface is used to seal the mesh area on the shoulder. The sliding surface two slides with the collar. The collar, the pneumatic cone surface and the sliding surface two form an annular air guide chamber. The air inlet pipe is connected to the annular air guide chamber. The air pressure in the annular air guide chamber acts on the pneumatic cone surface. The ring body and the barrel are connected by several springs.

3. The enzymatic modified starch reaction apparatus according to claim 2, characterized in that, Both the shoulder and the sealing surface are inclined toward the axis of the material cylinder.

4. The enzymatic modified starch reaction apparatus according to claim 3, characterized in that, A plurality of guide strips are provided on the outer wall of the rotating drum in the independent chamber. The guide strips are used to guide the material near the outer wall of the rotating drum toward the center of the independent chamber. The curvature and length of the plurality of guide strips gradually increase from top to bottom.

5. The enzymatic modified starch reaction apparatus according to claim 4, characterized in that, The bottom of the material cylinder is provided with an arc-shaped flow guide surface.

6. The enzymatic modified starch reaction apparatus according to claim 5, characterized in that, Each of the independent chambers is slidably equipped with a piston, which divides the independent chamber into a lower pressurized chamber and an upper empty chamber. An air guide pipe is provided in the empty chamber. One end of the air guide pipe slides vertically through the piston, and the other end of the air guide pipe passes horizontally through the rotating cylinder and is fixedly connected to each other. The piston and the air guide pipe are connected by a spring. The bottom of the air guide pipe is provided with a sealing plate, and an air hole is opened on one side wall of the air guide pipe in the empty chamber, at least a part of the air hole overlaps with the piston.

7. The enzymatic modified starch reaction apparatus according to claim 6, characterized in that, A second air guide pipe is connected to the collar, and a pressure valve is installed on the second air guide pipe. The output end of the second air guide pipe is connected to the pressurization chamber that has moved to the position of the discharge pipe.

8. The enzymatic modified starch reaction apparatus according to claim 7, characterized in that, A sealing ring is rotatably disposed on the inner wall of the material cylinder. The sealing ring is connected to several partitions. Several material ports are opened on the sealing ring. The material ports correspond to the pressurization chamber and cooperate with the feed pipe.

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