Thermal denaturation suspension granulation equipment for cereal starch

Abstract

The utility model provides cereal starch thermal denaturation suspension granulation equipment which comprises a spray drying tower, the top end of the spray drying tower is communicated with a first atomizing nozzle and a first hot air distributor, and the side part of the spray drying tower is communicated with a second hot air distributor; the bottom end of the spray drying tower is rotationally connected with a rotating pipe, and air outlet holes are formed in the surface of the rotating pipe. A rotary conveying assembly is fixed to the outer side of the rotary pipe and comprises a baffle, a filter screen and a connecting frame. The connecting frame is fixed to the outer side of the rotating pipe, and a filter screen is arranged outside the connecting frame. Baffles are distributed on the surface of the filter screen; the rotating pipe, the first hot air distributor and the second hot air distributor communicate with the hot air blast input end. And a plurality of second atomizing nozzles are embedded in the side wall, opposite to the rotary conveying assembly, of the spray drying tower. Fat spraying can be completed in the drying tower, reprocessing of granular starch is not needed, energy consumption is reduced, and starch granules are prevented from being gathered when being output from the drying tower.

Description

Technical Field

[0001] The utility model relates to the technical field of starch granulation equipment, in particular to a thermally denatured suspension granulation equipment for cereal starch. Background Art

[0002] Cereal starch refers to starch extracted from cereal crops; this starch has a wide range of applications in food processing and other industrial fields. Cereal starch mainly comes from the seeds of cereal crops such as wheat, rice, corn, oats, barley, rye, etc. Cereal starch usually exists in the form of white powder, showing a variety of different shapes and sizes. It has excellent water absorption and thickening properties, and also has good gelling ability; cereal starch is widely used in the food industry, including bread, biscuits, cakes, instant noodles, condiments and other products.

[0003] In order to improve the stability and storage properties of starch and extend its shelf life, starch is generally prepared into granules. Suspension granulation is one of the methods for processing cereal starch. The existing cereal starch suspension granulation is carried out in a drying tower. The starch granules granulated from the drying tower are very easy to aggregate after being output. Generally, fat needs to be applied on the surface of the starch granules to reduce sticky aggregation. The existing fat application generally uses another spray heating device to apply fat atomization after the granulation is completed. On the one hand, the starch granules will inevitably aggregate when output from the drying tower. On the other hand, the starch granules need to be transported, which increases the cost of granulation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a cereal starch thermally denatured suspension granulation device, which can solve the existing problems.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] The utility model is realized by the following technical scheme: a cereal starch thermally modified suspension granulation device, comprising a spray drying tower, the top of the spray drying tower is connected to a first atomizing nozzle, the first atomizing nozzle is used to spray out an atomized starch solution; the top of the spray drying tower is connected to a first hot air distributor, and the side of the spray drying tower is connected to a second hot air distributor; the bottom end of the spray drying tower is rotatably connected to a rotating tube, and an air outlet is provided on the surface of the rotating tube; a rotating conveying assembly is fixed on the outside of the rotating tube, and the rotating conveying assembly includes a baffle, a filter screen and a connecting frame; the connecting frame is fixed to the outside of the rotating tube, and a filter screen is provided on the outside of the connecting frame; baffles are distributed on the surface of the filter screen; the rotating tube, the first hot air distributor, and the second hot air distributor are connected to the input end of the hot air blast; a plurality of second atomizing nozzles are embedded in the side wall of the spray drying tower opposite to the rotating conveying assembly, and the second atomizing nozzles are used to spray fat.

[0007] Furthermore, the spray drying tower comprises a drying zone, a falling zone, a fat adding zone and a discharging zone which are interconnected; the first hot air distributor and the second hot air distributor are arranged in the drying zone; and the rotating conveying assembly is arranged in the fat adding zone.

[0008] Furthermore, the first hot air distributor, the second hot air distributor, and the rotating tube are connected to the heater through a pipeline; the input end of the heater is connected to the output end of the blower, and the input end of the blower is connected to the output end of the air filter.

[0009] Furthermore, the pipe connecting the heater and the first hot air distributor, the second hot air distributor and the rotating tube is in a coil structure; the coil structure is located in a fat container, and a second delivery pump is provided in the fat container; the output end of the second delivery pump is connected to a plurality of second atomizing nozzles through a pipe.

[0010] Furthermore, the end of the rotating tube is connected to a driving assembly, and the driving assembly is used to drive the rotating tube to drive the rotating conveying assembly to rotate; the driving assembly includes a second motor.

[0011] Furthermore, the input end of the first atomizing nozzle is connected to the output end of the first delivery pump; the first delivery pump is placed in a starch solution container; the starch solution is contained in the starch solution container; and a stirring assembly is installed in the starch solution container.

[0012] Furthermore, the stirring assembly includes a rotating shaft, a first motor, stirring blades and a stirring rod. The rotating shaft is rotatably connected to the starch solution container, and the first motor is installed at the end of the rotating shaft; the stirring blades and the stirring rod are provided on the outside of the rotating shaft.

[0013] Furthermore, the stirring blades and the stirring rods are provided in a plurality in a ring array, and the stirring blades have a trapezoidal structure, and the stirring rods have an "L"-shaped structure.

[0014] Compared with the prior art, the beneficial effects of the utility model include:

[0015] The utility model relates to a thermally denatured suspension granulation device for cereal starch. After the starch is dried and becomes a granular state, a rotary conveying component is used to convey the granular starch to the side of a second atomizing nozzle, and fat is sprayed on the surface of the starch granules by the second atomizing nozzle to avoid the aggregation of the starch granules. After the fat is sprayed, hot air is blown out from the inner side of the rotary conveying component to dry the granules to form a film, thereby improving the solubility of the cereal starch granules, reducing digestibility, and slowing down the increase in blood sugar. The utility model can complete the fat spraying inside the drying tower, does not need to process the granular starch again, reduces energy consumption, and avoids the aggregation of starch granules when they are output from the drying tower.

[0016] In addition, a hot air conveying pipe passes through the fat container of the utility model, and the hot air of the spray drying tower is used to dissolve the fat and make it in a liquid state for easy spraying. No additional heating is required, and heating can be performed when the spray drying tower is started, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of a cereal starch thermally modified suspension granulation device of the utility model;

[0019] Figure 2 This is a schematic structural diagram of a rotary conveying assembly according to an implementation example of the utility model.

[0020] Explanations in the figure: 1. Starch solution container; 2. First delivery pump; 3. Stirring blade; 4. Stirring rod; 5. Rotating shaft; 6. First motor; 7. First atomizing nozzle; 8. First hot air distributor; 9. Fat container; 10. Second delivery pump; 11. Heater; 12. Blower; 13. Air filter; 14. Spray drying tower; 141. Drying area; 142. Falling area; 143. Fat adding area; 144. Discharging area; 15. Second hot air distributor; 16. Rotating conveying assembly; 161. Baffle; 162. Filter; 163. Connecting frame; 17. Second motor; 18. Second atomizing nozzle; 19. Rotating tube; 191. Air outlet. DETAILED DESCRIPTION

[0021] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0022] A cereal starch thermally modified suspension granulation device, such as Figure 1 As shown, the spray drying tower 14 includes a drying area 141, a falling area 142, a fat adding area 143 and a discharging area 144 which are interconnected from top to bottom.

[0023] The top of the spray drying tower 14 is connected to the first atomizing nozzle 7, which is used to spray out the atomized starch solution; specifically, the starch solution used is contained in the starch solution container 1, and the input end of the first atomizing nozzle 7 is connected to the output end of the first delivery pump 2; the first delivery pump 2 is placed in the starch solution container 1; the starch solution is contained in the starch solution container 1; in order to prevent the starch solution from precipitating, a stirring assembly is installed in the starch solution container 1; the stirring assembly includes a rotating shaft 5, a first motor 6, a stirring blade 3 and a stirring rod 4, the rotating shaft 5 is rotatably connected to the starch solution container 1, and the end of the rotating shaft 5 is installed with the first motor 6; the outer side of the rotating shaft 5 is provided with a stirring blade 3 and a stirring rod 4. The stirring blade 3 and the stirring rod 4 are provided in a ring array, and the stirring blade 3 adopts a trapezoidal structure, and the stirring rod 4 adopts an "L"-shaped structure.

[0024] The top of the spray drying tower 14 is connected to the first hot air distributor 8, and the side of the spray drying tower 14 is connected to the second hot air distributor 15; the first hot air distributor 8 and the second hot air distributor 15 are arranged in a drying area 141; the sprayed starch solution is dried to form particles through the drying area 141;

[0025] In order to prevent the dried particles from sticking and agglomerating, the bottom end of the spray drying tower 14 is rotatably connected to a rotating tube 19, and an air outlet 191 is provided on the surface of the rotating tube 19; Figure 2 As shown, a rotating conveying assembly 16 is fixed to the outer side of the rotating tube 19, and the rotating conveying assembly 16 is arranged in the fat adding area 143; the rotating conveying assembly 16 comprises a baffle 161, a filter screen 162 and a connecting frame 163; the connecting frame 163 is fixed to the outer side of the rotating tube 19, and a filter screen 162 is arranged on the outside of the connecting frame 163; the surface of the filter screen 162 is distributed with baffles 161;

[0026] The rotating tube 19, the first hot air distributor 8, and the second hot air distributor 15 are connected to the input end of the hot air blast; a plurality of second atomizing nozzles 18 are embedded in the side wall of the spray drying tower 14 opposite to the rotating conveying assembly 16, and the second atomizing nozzles 18 are used for spraying fat.

[0027] The formed starch particles fall onto the surface of the rotating conveying component 16 under the action of gravity. The rotating conveying component 16 sprays the melted fat solution onto the surface of the starch particles. The hot air is discharged from the rotating tube 19 through the air outlet 191, and the sprayed fat forms a protective layer to prevent the starch particles from agglomerating together, thereby improving solubility, reducing digestibility, and slowing down the increase in blood sugar levels.

[0028] The first hot air distributor 8, the second hot air distributor 15, and the rotating tube 19 are connected to the heater 11 through a pipeline; the input end of the heater 11 is connected to the output end of the blower 12, and the input end of the blower 12 is connected to the output end of the air filter 13.

[0029] The pipe connecting the heater 11 and the first hot air distributor 8, the second hot air distributor 15 and the rotating tube 19 is in a coil structure; the coil structure is located in the fat container 9, and the fat is heated by the hot air pipe to be in a liquid state for spraying; a second delivery pump 10 is provided in the fat container 9; the output end of the second delivery pump 10 is connected to a plurality of second atomizing nozzles 18 through a pipe.

[0030] The end of the rotating tube 19 is connected to a driving assembly, and the driving assembly is used to drive the rotating tube 19 to drive the rotating conveying assembly 16 to rotate; the driving assembly includes a second motor 17 .

[0031] When the present invention is used, the starch solution is first placed in the starch solution container 1, and the fat is placed in the fat container 9. The air filter 13, the blower 12 and the heater 11 are first turned on, and the hot air passes through the fat container 9 to heat the fat and enter the spray drying tower 14. After heating for a period of time, the fat in the fat container 9 melts, and the first motor 6 is turned on. After the first motor 6 is started, the rotating shaft 5 is driven to rotate, and then the stirring blade 3 and the stirring rod 4 are driven to stir the starch solution container 1 so that the starch is evenly mixed. The first atomizing nozzle 7 is used by the first delivery pump 2 to heat the fat. The starch particles are sprayed into the spray drying tower 14, dried by the first hot air distributor 8 and the second hot air distributor 15, and the dried starch particles enter the surface of the rotating conveying component 16. The second motor 17 is started to drive the starch particles entering the surface of the filter 162 to rotate to the side of the second atomizing nozzle 18, and the fat is sprayed out by the second atomizing nozzle 18. The starch particles are then dried again by the hot air blown out by the rotating tube 19 during rotation, and then fall from the discharging area 144. The rotating tube 19 is rotating, and the starch particles rotate and shake between the baffles 161 to change their positions, so as to be fully sprayed and dried.

[0032] The thermally denatured suspension granulation equipment of the present invention uses a rotary conveying component 16 to convey the starch in a granular state to the side of a second atomizing nozzle 18 after the starch is dried and becomes granular, and uses the second atomizing nozzle 18 to spray fat on the surface of the starch granules to avoid aggregation of the starch granules; after spraying the fat, hot air is blown out from the inner side of the rotary conveying component 16 to dry and form a film, thereby improving the solubility of the cereal starch granules, reducing digestibility, and slowing down the increase in blood sugar levels.

[0033] In addition, a hot air delivery pipe passes through the fat container 9 of the utility model, and the hot air of the spray drying tower 14 is used to dissolve the fat and make it in a liquid state for spraying. No additional heating is required, and heating can be performed when the spray drying tower 14 is started, which is more convenient to use.

[0034] In the present invention, in order to control the thermal denaturation of cereal starch, the following methods can be adopted:

[0035] Adjusting solution concentration: When preparing a cereal starch solution, adjusting its concentration can affect thermal denaturation during spray drying; an appropriate concentration helps reduce the risk of thermal denaturation, and generally the higher the concentration, the lower the risk of thermal denaturation.

[0036] Choose the right drying temperature and time: In the spray drying process, it is very important to control the drying temperature and time. Avoid exposing the starch solution to high temperature for too long to prevent thermal denaturation.

[0037] Adding antioxidants or stabilizers: Adding some antioxidants or stabilizers to the starch solution can help reduce the possibility of heat denaturation. These additives help maintain the stability of the starch molecular structure.

[0038] Control starch solution spray parameters: Monitor spray drying equipment parameters, such as particle size, particle shape, etc. Appropriate spray parameter settings can reduce the risk of thermal denaturation.

[0039] Cooling treatment: After the starch solution is dried, it is also important to cool it in time. By controlling the cooling rate, the structure of starch particles can be effectively fixed and the possibility of thermal denaturation can be reduced.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0043] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A cereal starch thermally modified suspension granulation device, characterized in that: The invention comprises a spray drying tower (14), wherein the top end of the spray drying tower (14) is connected to a first atomizing nozzle (7), and the first atomizing nozzle (7) is used to spray out an atomized starch solution; the top end of the spray drying tower (14) is connected to a first hot air distributor (8), and the side of the spray drying tower (14) is connected to a second hot air distributor (15); the bottom end of the spray drying tower (14) is rotatably connected to a rotating tube (19), and an air outlet hole (191) is provided on the surface of the rotating tube (19); a rotating conveying assembly (16) is fixed to the outer side of the rotating tube (19), and the rotating conveying assembly (16) The invention comprises a baffle (161), a filter (162) and a connecting frame (163); the connecting frame (163) is fixed to the outside of a rotating tube (19), and a filter (162) is arranged outside the connecting frame (163); a baffle (161) is distributed on the surface of the filter (162); the rotating tube (19), the first hot air distributor (8) and the second hot air distributor (15) are connected to the input end of the hot air blast; a plurality of second atomizing nozzles (18) are embedded in the side wall of the spray drying tower (14) opposite to the rotating conveying component (16), and the second atomizing nozzles (18) are used for spraying fat.

2. The cereal starch thermally modified suspension granulation equipment according to claim 1, characterized in that: The spray drying tower (14) comprises a drying area (141), a falling area (142), a fat adding area (143) and a discharging area (144) which are interconnected; the first hot air distributor (8) and the second hot air distributor (15) are arranged in the drying area (141); and the rotating conveying component (16) is arranged in the fat adding area (143).

3. The cereal starch thermally modified suspension granulation equipment according to claim 1, characterized in that: The first hot air distributor (8), the second hot air distributor (15), and the rotating tube (19) are connected to the heater (11) through a pipeline; the input end of the heater (11) is connected to the output end of the blower (12), and the input end of the blower (12) is connected to the output end of the air filter (13).

4. The cereal starch thermally modified suspension granulation equipment according to claim 3, characterized in that: The pipeline connecting the heater (11) and the first hot air distributor (8), the second hot air distributor (15), and the rotating tube (19) is in a coil structure; the coil structure is located in a fat container (9), and a second delivery pump (10) is provided in the fat container (9); the output end of the second delivery pump (10) is connected to a plurality of second atomizing nozzles (18) via a pipeline.

5. The cereal starch thermally modified suspension granulation equipment according to claim 1, characterized in that: The end of the rotating tube (19) is connected to a driving assembly, and the driving assembly is used to drive the rotating tube (19) to drive the rotating conveying assembly (16) to rotate; the driving assembly includes a second motor (17).

6. A cereal starch thermally modified suspension granulation device according to any one of claims 1 to 5, characterized in that: The input end of the first atomizing nozzle (7) is connected to the output end of the first delivery pump (2); the first delivery pump (2) is placed in a starch solution container (1); the starch solution is contained in the starch solution container (1); A stirring assembly is installed in the starch solution container (1).

7. The cereal starch thermally modified suspension granulation equipment according to claim 6, characterized in that: The stirring assembly comprises a rotating shaft (5), a first motor (6), a stirring blade (3) and a stirring rod (4); the rotating shaft (5) is rotatably connected to a starch solution container (1), and the first motor (6) is installed at the end of the rotating shaft (5); the stirring blade (3) and the stirring rod (4) are arranged on the outer side of the rotating shaft (5).

8. The cereal starch thermally modified suspension granulation equipment according to claim 7, characterized in that: The stirring blades (3) and the stirring rods (4) are provided in a plurality in a ring array, and the stirring blades (3) have a trapezoidal structure, and the stirring rods (4) have an "L"-shaped structure.

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