Raw material sterilization device for preparing high fructose corn syrup and production process

Abstract

The invention relates to the technical field of high fructose corn syrup preparation, and discloses a raw material sterilization device for high fructose corn syrup preparation and a production technology.The raw material sterilization device comprises an outer box, a stirring mechanism is fixed to the top of the sterilization box and comprises a motor, the bottom of the motor is connected with a gear, one side of the gear is connected with a rotating pipeline in an engaged mode, and the rotating pipeline is connected with a rotating shaft; and stirring blades are fixed to the outer side of the rotating pipeline, the rotating pipeline extends into the inner box, and a stirring rod is fixed to the outer side of the bottom of the rotating pipeline. According to the raw material sterilization device for preparing the high fructose corn syrup, after the liquid pumping hole is sealed and sterilized raw materials in the sterilization box are introduced between the outer box and the inner box, unsterilized raw materials are introduced into the inner box, and the high-temperature raw materials can realize heat exchange in the process of flowing in the heat conduction pipeline, so that the raw materials in the inner box are conveniently preheated; then the raw materials in the inner box are pumped into the sterilization box for thorough high-temperature sterilization treatment, and the whole sterilization operation is continuous, efficient and energy-saving.

Description

Technical Field

[0001] The invention relates to the technical field of fructose-glucose syrup preparation, in particular to a raw material sterilization device and a production process for preparing fructose-glucose syrup. Background Art

[0002] High fructose corn syrup is a kind of starch crystal made by hydrolysis and isomerization of plant starch. It is an important sweetener. The production of high fructose corn syrup is not restricted by region and season. The equipment is relatively simple and the investment cost is low. Because it is mainly composed of fructose and glucose, it is called "high fructose corn syrup". Raw material sterilization equipment is required in the production process of high fructose corn syrup.

[0003] The existing raw material sterilization device generally needs to naturally cool the raw materials after high-temperature sterilization. The heat of the raw materials is easily wasted and difficult to fully utilize. The next batch of raw materials can only be sterilized after the sterilization of the previous batch of raw materials is completed. There is a waiting time for loading and unloading, which makes the entire sterilization operation not continuous and efficient. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a raw material sterilization device and production process for the preparation of fructose-glucose syrup, so as to solve the problem that the existing raw material sterilization device proposed in the above background technology generally needs to naturally cool the raw materials after high-temperature sterilization of the raw materials, the heat of the raw materials is easily wasted and difficult to fully utilize, and the next batch of raw materials can only be sterilized after the sterilization of the previous batch of raw materials is completed. There is a waiting time for loading and unloading, which makes the entire sterilization operation not continuous and efficient.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material sterilization device and production process for preparing fructose-glucose syrup, comprising an outer box, a bracket and a first electric discharge valve are fixed to the bottom of the outer box, an inner box is fixed to the inner side of the outer box, a feed pipe is fixed to the top of the inner box, the feed pipe passes through the top of the outer box, and a heat conduction pipe is fixed on the inner box, the heat conduction pipe passes through the inner box.

[0006] A sterilization box is fixed on the top of the outer box, the bottom of the sterilization box is connected to the top of the outer box through a second electric discharge valve, and electric heating plates are symmetrically fixed on both sides of the bottom of the sterilization box.

[0007] A stirring mechanism is fixed on the top of the sterilization box, and the stirring mechanism includes a motor. The bottom of the motor is connected to a gear, one side of the gear is meshed with a rotating pipe, a stirring blade is fixed on the outside of the rotating pipe, the rotating pipe extends into the inner box, and a stirring rod is fixed on the outside of the bottom of the rotating pipe.

[0008] Preferably, a feed port is provided on the top of the sterilization box, and a flip cover is rotatably connected to the top of the sterilization box.

[0009] Preferably, a gear ring is fixed to the outer side of the rotating pipe, and the gear ring is meshingly connected to one side of the gear.

[0010] Preferably, the top of the rotating pipe is connected to a liquid pump through a liquid extraction pipe, and the liquid pump is fixed on the top of the sterilization box. A return pipe is fixed on the top of the liquid pump, and the end of the return pipe extends into the sterilization box.

[0011] Preferably, the stirring blades are of a porous structure, and the stirring blades and the stirring rods are evenly distributed circumferentially on the rotating pipe.

[0012] Preferably, a liquid extraction hole is provided on the side of the rotating pipe, and the liquid extraction hole is connected to the sterilization box. There are four liquid extraction holes, and the four liquid extraction holes are evenly distributed on the rotating pipe in the circumferential direction.

[0013] Preferably, an electric telescopic column and a first oil cylinder are fixed to the bottom of the outer box, and a first piston is fixed to the top of the electric telescopic column, the first piston is slidably connected in the first oil cylinder, and the first piston passes through the bottom of the outer box and the bottom of the inner box and is connected to a first sealing ring, and the first sealing ring is slidably connected to the outside of the bottom of the rotating pipe.

[0014] Preferably, a second oil cylinder is fixed to the bottom of the sterilization box, and the second oil cylinder is connected to the first oil cylinder through a connecting pipe, a second piston is slidably connected in the second oil cylinder, and a second sealing ring is fixed to the top of the second piston, and the second sealing ring is slidably connected to the outside of the rotating pipe.

[0015] Preferably, an extrusion ring is fixed to the outside of the rotating pipe, and the extrusion ring is located between the outer box and the inner box, a movable frame passes through the side of the outer box, and the movable frame is connected to the outer box through a tension spring, one end of the movable frame fits with the outside of the extrusion ring, and the other end of the movable frame passes through the side of the inner box and is connected to the movable plate, a through hole is opened on the movable plate, and an opening and closing member is rotatably connected in the through hole, and the opening and closing member is connected to the movable plate through a spiral spring.

[0016] A raw material production process for preparing fructose-glucose syrup comprises the following steps: S1. The raw materials are passed into the sterilization box, and the electric heating plate sterilizes the raw materials at high temperature. The first sealing ring moves down to seal the bottom of the rotating pipe, while the second sealing ring moves up to open the liquid extraction hole. The stirring rod rotates with the rotating pipe to stir the raw materials. At the same time, the raw materials roll up and down in the sterilization box to facilitate full and uniform sterilization; S2, introduce unsterilized raw materials into the inner box, and after the sterilization operation is completed, open the second electric discharge valve to pass the sterilized raw materials between the outer box and the inner box, and the high-temperature raw materials flow in the heat-conducting pipe to perform heat exchange. At the same time, the extrusion ring rotates to drive the movable frame and the movable plate to move back and forth, the opening and closing parts open and close repeatedly, and the stirring rod stirs the raw materials to facilitate full heat exchange. While the first sealing ring moves up to open the bottom of the rotating pipe, the second sealing ring moves down to seal the liquid extraction hole, and then the raw materials in the inner box are pumped into the sterilization box for high-temperature sterilization, and the first electric discharge valve is opened to discharge the raw materials between the outer box and the inner box; S3. Repeat the above operation to continuously and efficiently sterilize the raw materials.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The raw material sterilization device for preparing fructose-glucose syrup can achieve the purpose of sufficient and uniform sterilization. After the raw materials are initially passed into the sterilization box, the electric heating plate sterilizes the raw materials at high temperature. After the liquid extraction hole is opened, the raw materials at the bottom of the sterilization box can be pumped to the top of the sterilization box by using the rotating pipe, the liquid extraction pipe and the reflux pipe. The raw materials roll up and down in the sterilization box, and the stirring blades rotate and stir the raw materials at the same time, so that the sterilization effect is more sufficient and uniform. 2. The raw material sterilization device for preparing fructose-glucose syrup can achieve the purpose of continuous energy-saving sterilization through heat exchange. After the liquid extraction hole is sealed and the sterilized raw materials in the sterilization box are passed between the outer box and the inner box, the unsterilized raw materials are passed in the inner box. The high-temperature raw materials can achieve heat exchange during the flow in the heat-conducting pipe, which is convenient for preheating the raw materials in the inner box. After that, the raw materials in the inner box are pumped into the sterilization box for thorough high-temperature sterilization treatment. The entire sterilization operation is continuous, efficient and energy-saving. 3. The raw material sterilization device for preparing fructose-glucose syrup can achieve the purpose of sufficient heat exchange. During the heat exchange process, the stirring rod rotates to facilitate the stirring of the raw materials in the inner box. At the same time, the extrusion ring rotates, the movable frame and the movable plate move back and forth, and the opening and closing parts are repeatedly opened and closed to facilitate the tumbling of the liquid in the inner box, so that the heat exchange effect is more sufficient and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 It is a right view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the front cross-sectional structure of the stirring mechanism of the present invention; Figure 5 It is a schematic diagram of a partial three-dimensional structure of the stirring mechanism of the present invention; Figure 6 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1, outer box; 2, bracket; 3, first electric discharge valve; 4, inner box; 5, feed pipe; 6, heat transfer pipe; 7, sterilization box; 8, second electric discharge valve; 9, feed port; 10, flip cover; 11, electric heating plate; 12, stirring mechanism; 1201, motor; 1202, gear; 1203, rotating pipe; 1204, gear ring; 1205, liquid extraction pipe; 1206, liquid pump; 1207, reflux pipe; 1208, stirring blade; 120 9. Liquid extraction hole; 1210. Extrusion ring; 1211. Stirring rod; 1212. Electric telescopic column; 1213. First oil cylinder; 1214. First piston; 1215. First sealing ring; 1216. Connecting pipe; 1217. Second oil cylinder; 1218. Second piston; 1219. Second sealing ring; 1220. Movable frame; 1221. Tension spring; 1222. Movable plate; 1223. Through hole; 1224. Opening and closing member; 1225. Volute spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 7 The present invention provides a technical solution: a raw material sterilization device for preparing fructose-glucose syrup, comprising an outer box 1, a bracket 2 and a first electric discharge valve 3 are fixed to the bottom of the outer box 1, an inner box 4 is fixed to the inner side of the outer box 1, a feed pipe 5 is fixed to the top of the inner box 4, the feed pipe 5 passes through the top of the outer box 1, a heat conduction pipe 6 is fixed to the inner box 4, and the heat conduction pipe 6 passes through the inner box 4.

[0022] A sterilization box 7 is fixed on the top of the outer box 1 , and the bottom of the sterilization box 7 is connected to the top of the outer box 1 through a second electric discharge valve 8 . Electric heating plates 11 are symmetrically fixed on both sides of the bottom of the sterilization box 7 .

[0023] A stirring mechanism 12 is fixed on the top of the sterilization box 7, and the stirring mechanism 12 includes a motor 1201. The bottom of the motor 1201 is connected to the gear 1202. One side of the gear 1202 is meshingly connected with a rotating pipe 1203. A stirring blade 1208 is fixed to the outside of the rotating pipe 1203. The rotating pipe 1203 extends into the inner box 4. A stirring rod 1211 is fixed to the outside of the bottom of the rotating pipe 1203.

[0024] In this embodiment, Figure 2 As shown, a feed port 9 is provided at the top of the sterilization box 7, and a flip cover 10 is rotatably connected to the top of the sterilization box 7. After opening the flip cover 10, the raw materials can be passed through the feed port 9 into the sterilization box 7 for high-temperature sterilization.

[0025] In this embodiment, Figure 2 , Figure 4 and Figure 5 As shown, a gear ring 1204 is fixed to the outside of the rotating pipe 1203, and the gear ring 1204 is meshedly connected to one side of the gear 1202. The gear 1202 can rotate under the action of the motor 1201. Since the gear ring 1204 is meshedly connected to the gear 1202, the rotating pipe 1203 will rotate with the rotation of the gear 1202.

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top of the rotating pipe 1203 is connected to the liquid pump 1206 through the liquid extraction pipe 1205, and the liquid pump 1206 is fixed on the top of the sterilization box 7. A return pipe 1207 is fixed on the top of the liquid pump 1206, and the end of the return pipe 1207 extends into the sterilization box 7. The liquid pump 1206 can extract liquid upward, and the liquid in the sterilization box 7 flows back into the sterilization box 7 through the rotating pipe 1203, the liquid extraction pipe 1205 and the return pipe 1207. The liquid rolls up and down in the sterilization box 7, making the heating and sterilization effect more uniform and efficient.

[0027] In this embodiment, Figure 2 , Figure 4 and Figure 5 As shown, the stirring blade 1208 is a porous structure, and the stirring blade 1208 and the stirring rod 1211 are evenly distributed circumferentially on the rotating pipe 1203. During the high-temperature sterilization process of the liquid in the sterilization box 7, the stirring blade 1208 and the stirring rod 1211 rotate together with the rotating pipe 1203. The stirring blade 1208 stirs the liquid in the sterilization box 7, making the sterilization effect more comprehensive and uniform, and the stirring rod 1211 stirs the liquid in the inner box 4.

[0028] In this embodiment, Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a liquid extraction hole 1209 is provided on the side of the rotating pipe 1203, and the liquid extraction hole 1209 is connected with the sterilization box 7. There are four liquid extraction holes 1209, and the four liquid extraction holes 1209 are evenly distributed on the rotating pipe 1203 in a circumferential direction. Before the liquid in the sterilization box 7 is subjected to high-temperature sterilization, the liquid extraction hole 1209 needs to be opened. In the process of extracting liquid by the liquid pump 1206, the liquid at the bottom of the sterilization box 7 enters the rotating pipe 1203 through the liquid extraction hole 1209, and then the liquid flows back to the top of the sterilization box 7 through the liquid extraction pipe 1205 and the reflux pipe 1207, so that the liquid can roll up and down in the sterilization box 7.

[0029] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an electric telescopic column 1212 and a first oil cylinder 1213 are fixed to the bottom of the outer box 1, and a first piston 1214 is fixed to the top of the electric telescopic column 1212. The first piston 1214 is slidably connected in the first oil cylinder 1213, and the first piston 1214 passes through the bottom of the outer box 1 and the bottom of the inner box 4 and is connected to the first sealing ring 1215. The first sealing ring 1215 is slidably connected to the outside of the bottom of the rotating pipe 1203. The first piston 1214 can move up and down under the telescopic action of the electric telescopic column 1212, and the first sealing ring 1215 moves up and down accordingly, so as to conveniently control the opening and closing of the bottom of the rotating pipe 1203.

[0030] In this embodiment, Figure 2 , Figure 4 and Figure 6 As shown, a second oil cylinder 1217 is fixed to the bottom of the sterilization box 7, and the second oil cylinder 1217 is connected to the first oil cylinder 1213 through a connecting pipe 1216. A second piston 1218 is slidably connected in the second oil cylinder 1217, and a second sealing ring 1219 is fixed to the top of the second piston 1218. The second sealing ring 1219 is slidably connected to the outside of the rotating pipe 1203. The connecting pipe 1216 serves to connect the first oil cylinder 1213 and the second oil cylinder 1217. When the first piston 1214 moves downward, the liquid in the first oil cylinder 1213 can be pressed into the second oil cylinder 1217. The second piston 1218 moves upward under the action of oil pressure, thereby driving the second sealing ring 1219 to move upward, so as to facilitate the opening of the liquid extraction hole 1209. When the first piston 1214 moves upward, the second sealing ring 1219 moves downward and seals the liquid extraction hole 1209.

[0031] In this embodiment, Figure 2 , Figure 4 , Figure 5 and Figure 7As shown, an extrusion ring 1210 is fixed to the outside of the rotating pipe 1203, and the extrusion ring 1210 is located between the outer box 1 and the inner box 4. A movable frame 1220 is passed through the side of the outer box 1, and the movable frame 1220 is connected to the outer box 1 through a tension spring 1221. One end of the movable frame 1220 is fitted with the outer side of the extrusion ring 1210, and the other end of the movable frame 1220 passes through the side of the inner box 4 and is connected to the movable plate 1222. The movable plate 1222 is provided with a through hole. The opening and closing member 1224 is rotatably connected in the through hole 1223, the opening and closing member 1224 is connected to the movable plate 1222 through the volute spring 1225, the rotation of the rotating pipe 1203 drives the extrusion ring 1210 to rotate, the movable frame 1220 moves back and forth under the extrusion of the extrusion ring 1210 and the pulling of the tension spring 1221, thereby driving the movable plate 1222 to move back and forth, and the opening and closing member 1224 is repeatedly opened and closed, so as to facilitate the rolling of the liquid in the auxiliary inner box 4.

[0032] According to another aspect of the present invention, there is provided a process for producing raw materials for preparing high fructose corn syrup, comprising the following steps: S1. The raw materials are passed into the sterilization box 7. The electric heating plate 11 sterilizes the raw materials at high temperature. The first sealing ring 1215 moves down to seal the bottom of the rotating pipe 1203. The second sealing ring 1219 moves up to open the liquid extraction hole 1209. The stirring rod 1211 rotates with the rotating pipe 1203 to stir the raw materials. At the same time, the raw materials roll up and down in the sterilization box 7 to facilitate full and uniform sterilization. S2. Unsterilized raw materials are introduced into the inner box 4. After the sterilization operation is completed, the second electric discharge valve 8 is opened to pass the sterilized raw materials between the outer box 1 and the inner box 4. The high-temperature raw materials flow in the heat-conducting pipe 6 to perform heat exchange. At the same time, the extrusion ring 1210 rotates to drive the movable frame 1220 and the movable plate 1222 to move back and forth, the opening and closing member 1224 opens and closes repeatedly, and the stirring rod 1211 stirs the raw materials to facilitate sufficient heat exchange. At the same time, the first sealing ring 1215 moves up to open the bottom of the rotating pipe 1203, and the second sealing ring 1219 moves down to seal the liquid extraction hole 1209, and then the raw materials in the inner box 4 are pumped into the sterilization box 7 for high-temperature sterilization, and the first electric discharge valve 3 is opened to discharge the raw materials between the outer box 1 and the inner box 4; S3. Repeat the above operation to continuously and efficiently sterilize the raw materials.

[0033] The working principle of the device is as follows: when connected to an external power source, the flip cover 10 is first opened and the raw materials are passed into the sterilization box 7, the electric heating plate 11 performs high-temperature sterilization on the raw materials, the first piston 1214 and the first sealing ring 1215 move downward, the first sealing ring 1215 seals the bottom of the rotating pipe 1203, the second piston 1218 and the second sealing ring 1219 move upward to open the liquid extraction hole 1209, the liquid pump 1206 extracts the raw materials upward, and the raw materials enter the rotating pipe 1203 through the liquid extraction hole 1209. The raw materials are refluxed into the sterilization box 7 through the liquid extraction pipe 1205 and the return pipe 1207. The raw materials roll up and down in the sterilization box 7. At the same time, the rotation of the gear 1202 drives the rotating pipe 1203 and the stirring blade 1208 to rotate, thereby automatically stirring the raw materials, which is convenient for fully and evenly sterilizing the raw materials. After the sterilization operation is completed, the first sealing ring 1215 moves up to open the bottom of the rotating pipe 1203, and the second sealing ring 1219 moves down to seal the liquid extraction hole 1209, and then opens the first sealing ring 1219. The second electric discharge valve 8 passes the sterilized raw materials between the outer box 1 and the inner box 4, and the feed pipe 5 is used to pass the unsterilized raw materials into the inner box 4. The sterilized raw materials flow between the outer box 1 and the inner box 4 and in the heat transfer pipe 6 to perform heat exchange, so that the raw materials in the inner box 4 are preheated. At the same time, the raw materials between the outer box 1 and the inner box 4 are cooled, and then the liquid pump 1206 is used to pump the raw materials in the inner box 4 to the sterilization box 7 for heating and sterilization. The first electric discharge valve 3 can be opened to discharge the liquid between the outer box 1 and the inner box 4, and then the above operation is repeated. During the heat exchange process, the extrusion ring 1210 and the stirring rod 1211 rotate together with the rotating pipe 1203, the movable frame 1220 and the movable plate 1222 move back and forth, and the opening and closing member 1224 is repeatedly opened and closed, which is convenient for assisting the rolling of the raw materials in the inner box 4, so that the heat exchange effect is more sufficient, and the content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0034] In summary, the raw material sterilization device and production process for preparing fructose-glucose syrup achieves the purpose of sufficient and uniform sterilization, continuous energy-saving sterilization and sufficient heat exchange through heat exchange, and meets people's use needs.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material sterilization device for preparing fructose-glucose syrup, comprising an outer box (1), characterized in that: A bracket (2) and a first electric discharge valve (3) are fixed to the bottom of the outer box (1); an inner box (4) is fixed to the inner side of the outer box (1); a feed pipe (5) is fixed to the top of the inner box (4); the feed pipe (5) passes through the top of the outer box (1); a heat conduction pipe (6) is fixed to the inner box (4); the heat conduction pipe (6) passes through the inner box (4); A sterilization box (7) is fixed on the top of the outer box (1); the bottom of the sterilization box (7) is connected to the top of the outer box (1) via a second electric discharge valve (8); and electric heating plates (11) are symmetrically fixed on both sides of the bottom of the sterilization box (7); A stirring mechanism (12) is fixed on the top of the sterilization box (7), and the stirring mechanism (12) comprises a motor (1201). The bottom of the motor (1201) is connected to a gear (1202), one side of the gear (1202) is meshingly connected to a rotating pipe (1203), a stirring blade (1208) is fixed to the outside of the rotating pipe (1203), the rotating pipe (1203) extends into the inner box (4), and a stirring rod (1211) is fixed to the outside of the bottom of the rotating pipe (1203).

2. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: A feed port (9) is provided on the top of the sterilization box (7), and a flip cover (10) is rotatably connected to the top of the sterilization box (7).

3. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: A gear ring (1204) is fixed to the outer side of the rotating pipe (1203), and the gear ring (1204) is meshingly connected to one side of the gear (1202).

4. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: The top of the rotating pipe (1203) is connected to the liquid pump (1206) via a liquid extraction pipe (1205), and the liquid pump (1206) is fixed to the top of the sterilization box (7). A return pipe (1207) is fixed to the top of the liquid pump (1206), and the end of the return pipe (1207) extends into the sterilization box (7).

5. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: The stirring blade (1208) is a porous structure, and the stirring blade (1208) and the stirring rod (1211) are evenly distributed circumferentially on the rotating pipe (1203).

6. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: A liquid extraction hole (1209) is provided on the side of the rotating pipe (1203), and the liquid extraction hole (1209) is connected to the sterilization box (7). Four liquid extraction holes (1209) are provided, and the four liquid extraction holes (1209) are evenly distributed on the rotating pipe (1203) in the circumferential direction.

7. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: An electric telescopic column (1212) and a first oil cylinder (1213) are fixed to the bottom of the outer box (1), and a first piston (1214) is fixed to the top of the electric telescopic column (1212); the first piston (1214) is slidably connected in the first oil cylinder (1213); the first piston (1214) penetrates the bottom of the outer box (1) and the bottom of the inner box (4) and is connected to a first sealing ring (1215); the first sealing ring (1215) is slidably connected to the outside of the bottom of the rotating pipe (1203).

8. The raw material sterilization device for preparing fructose-glucose syrup according to claim 1, characterized in that: A second oil cylinder (1217) is fixed to the bottom of the sterilization box (7), and the second oil cylinder (1217) is connected to the first oil cylinder (1213) via a connecting pipe (1216); a second piston (1218) is slidably connected inside the second oil cylinder (1217), and a second sealing ring (1219) is fixed to the top of the second piston (1218); the second sealing ring (1219) is slidably connected to the outside of the rotating pipe (1203).

9. A raw material sterilization device for preparing fructose-glucose syrup according to claim 8, characterized in that: An extrusion ring (1210) is fixed to the outside of the rotating pipe (1203), and the extrusion ring (1210) is located between the outer box (1) and the inner box (4). A movable frame (1220) passes through the side of the outer box (1), and the movable frame (1220) is connected to the outer box (1) via a tension spring (1221). One end of the movable frame (1220) fits the outside of the extrusion ring (1210), and the other end of the movable frame (1220) passes through the side of the inner box (4) and is connected to a movable plate (1222). A through hole (1223) is provided on the movable plate (1222), and an opening and closing member (1224) is rotatably connected in the through hole (1223). The opening and closing member (1224) is connected to the movable plate (1222) via a spiral spring (1225).

10. A production process for raw materials for preparing high fructose syrup, applied to a raw material sterilization device for preparing high fructose syrup according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The raw materials are passed into a sterilization box (7), and the electric heating plate (11) performs high-temperature sterilization on the raw materials. The first sealing ring (1215) moves downward to seal the bottom of the rotating pipe (1203), while the second sealing ring (1219) moves upward to open the liquid extraction hole (1209). The stirring rod (1211) rotates together with the rotating pipe (1203) to stir the raw materials. At the same time, the raw materials roll up and down in the sterilization box (7), so as to facilitate full and uniform sterilization. S2, introducing unsterilized raw materials into the inner box (4), and after the sterilization operation is completed, opening the second electric discharge valve (8) to pass the sterilized raw materials between the outer box (1) and the inner box (4), and the high-temperature raw materials flow in the heat-conducting pipe (6) to perform heat exchange. At the same time, the extrusion ring (1210) rotates to drive the movable frame (1220) and the movable plate (1222) to move back and forth, the opening and closing member (1224) repeatedly opens and closes, and the stirring rod (1211) stirs the raw materials to facilitate sufficient heat exchange. The first sealing ring (1215) moves upward to open the bottom of the rotating pipe (1203), while the second sealing ring (1219) moves downward to seal the liquid extraction hole (1209), and then the raw materials in the inner box (4) are pumped into the sterilization box (7) for high-temperature sterilization, and the first electric discharge valve (3) is opened to discharge the raw materials between the outer box (1) and the inner box (4); S3. Repeat the above operation to continuously and efficiently sterilize the raw materials.

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