Porous starch production device

Abstract

The utility model belongs to the technical field of starch processing, and discloses a porous starch production device which comprises a dry heat device, a reaction tank, a centrifugal machine and a drying device which are sequentially communicated through pipelines and valves, the dry heating device is provided with an air heating pipeline, one end of the air heating pipeline communicates with a high-temperature and high-pressure fan, the other end of the air heating pipeline communicates with an air inlet of the dry heating device, and an air outlet of the dry heating device communicates with an air inlet of the drying device through an air outlet pipeline. According to the utility model, the starch to be processed is pretreated, so that the product quality is good, the yield is high, and the adsorption effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of starch processing, and particularly relates to a porous starch production device. Background Art

[0002] Porous starch refers to a kind of hollow modified starch formed by treating starch through physical, chemical and biological methods. Due to its high specific surface area, pore volume, low density and biodegradability, it has attracted great interest. The physical and chemical properties of porous starch are determined by the particle structure. The basic properties of the porous starch particles prepared by modification treatment do not change significantly, and they inherit the good biocompatibility, non-toxicity, biodegradability and other properties of raw starch. However, compared with natural starch, porous starch has a larger porosity; a larger specific surface area, lower bulk density and particle density; good water and oil absorption capacity; safe and non-toxic processing process, and the dosage is not restricted. As a new type of organic adsorbent and embedding material, it can be widely used in industries such as medicine, pesticide, printing, daily chemical industry, cosmetics and food.

[0003] At present, porous starch is mainly produced by the enzymatic method. Corn starch is directly formulated into a starch milk for enzymatic hydrolysis without pretreatment, resulting in low product yield and weak adsorption effect, leading to poor product quality. Summary of the Invention

[0004] The technical problem to be solved by the utility model is: to provide a porous starch production device, through the pretreatment of the starch to be processed, so that the product has good quality, high yield and better adsorption effect.

[0005] To solve the above technical problem, the technical solution of the utility model is:

[0006] A porous starch production device includes a dry heat device, a reaction tank, a centrifuge and a drying device that are connected in sequence through pipelines and valves; the dry heat device is provided with a hot air pipeline, one end of the hot air pipeline is connected to a high-temperature and high-pressure blower, and one end is connected to the air inlet of the dry heat device; the air outlet of the dry heat device is connected to the air inlet of the drying device through an air outlet pipeline.

[0007] Preferably, the dry heat device is provided with a material conveyor belt, and the transmission mechanism of the material conveyor belt is electrically connected to an automatic control system. Ensure that the material stays in the device for 2 hours or more. The dry heat device is a fluidized bed dryer, model XF100, and the manufacturer is Yangzhou Rifa Drying Engineering Co., Ltd.

[0008] Preferably, the reaction tank is provided with a heating coil, a temperature sensor and a pH value sensor. The heating coil, the temperature sensor and the sensor are all electrically connected to the automatic control system, and the temperature of the tank is automatically controlled to be about 60°C, and the pH value of the material is detected in real time.

[0009] Preferably, the centrifuge is a disc centrifuge. The starch and water are separated by centrifugation to reduce the drying cost. The model is DHC400, and the manufacturer is Liaoning Fuyi Machinery Co., Ltd.

[0010] Preferably, the drying device is a fluidized bed dryer, model XF100, manufactured by Yangzhou Rifa Drying Engineering Co., Ltd.

[0011] Preferably, the high-temperature and high-pressure fan is connected to the air supply device through a pipeline and an air heater.

[0012] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The utility model adds a starch pretreatment device to perform dry heat treatment on the starch first, and then enzymatic hydrolysis, so that the adsorption effect of the obtained product is stronger, and the water absorption rate is increased from 110% to 130%; and the product yield is increased by 5%.

[0014] 2. The utility model uses the high-temperature exhaust gas in the dry heat pretreatment process for drying in the subsequent process, which achieves the effect of waste heat recycling and saves energy and reduces consumption.

[0015] In conclusion, the utility model makes the product with good quality, high yield and better adsorption effect by pretreating the starch to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0017] In the figure, 1. dry heat device; 2. reaction tank; 3. centrifuge; 4. drying device; 5. air-heat duct; 6. air inlet of dry heat device; 7. air outlet of dry heat device; 8. air outlet duct; 9. air inlet of drying device. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Embodiment 1:

[0020] like Figure 1As shown in the figure, a porous starch production device includes a dry heat device 1, a reaction tank 2, a centrifuge 3, and a drying device 4 that are sequentially connected through pipes (not marked) and valves (not marked). The discharge port of the dry heat device 1 is connected to the feed port of the reaction tank 2, the discharge port of the reaction tank 2 is connected to the feed port of the centrifuge 3, and the discharge port of the centrifuge 3 is connected to the feed port of the drying device 4. The dry heat device 1 is provided with a hot air pipeline 5. One end of the hot air pipeline 5 is connected to a high-temperature and high-pressure blower (not marked), and the other end is connected to the air inlet 6 of the dry heat device. The air outlet 7 of the dry heat device is connected to the air inlet 9 of the drying device through an air outlet pipeline 8.

[0021] During actual production, first preheat the dry heat device 1 to 130°C through the input hot air, then pour dry starch through the feed port of the dry heat device 1, and slowly move forward through the conveyor belt for about 2 hours of dry heat treatment. Then the material is discharged into the reaction tank 2, where water is added to adjust the slurry and steam is introduced to heat it to 50°C. Then, 210 ml / TDS (per ton of dry matter) of heat-resistant α-amylase and glucoamylase are added to the slurry, and after reacting for 20 hours, the material is discharged to the centrifuge 3 for centrifugation. The starch milk obtained by centrifugation is transported to the drying device 4, and the starch milk is dried at 110°C by the hot air with residual heat transported from the dry heat device 1, and the finished product is obtained after drying.

[0022] It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A porous starch production device, characterized in that: It includes a dry heat device, a reaction tank, a centrifuge and a drying device that are connected in sequence through pipelines and valves; the dry heat device is provided with a wind-heat pipeline, one end of the wind-heat pipeline is connected to a high-temperature and high-pressure blower, and one end is connected to the air inlet of the dry heat device; the air outlet of the dry heat device is connected to the air inlet of the drying device through an air outlet pipeline.

2. The porous starch production device according to claim 1, characterized in that: The dry heat device is a fluidized bed dryer and is provided with a material conveyor belt.

3. The porous starch production device according to claim 1, characterized in that: The reaction tank is provided with heating coils, a temperature sensor and a pH value sensor.

4. The porous starch production device according to claim 1, wherein: The centrifuge is a disc centrifuge.

5. The porous starch production device according to claim 1, characterized in that: The drying device is a fluidized bed dryer.

6. The porous starch production device according to claim 1, characterized in that: The high-temperature and high-pressure blower is connected to an air supply device through a pipeline and an air heater.

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