Multi-layer scraper type sucrose-6-ester continuous production equipment

Abstract

The invention relates to the technical field of sucrose-6-ester production, in particular to multi-layer scraper type sucrose-6-ester continuous production equipment which comprises a molecular distiller, a water collector, stirring equipment, a driving belt wheel, a motor, a driven belt wheel and a belt. Comprising a tank body, a first light and heavy component condensing disc, a second light and heavy component condensing disc, a heating disc, a film scraping device, a stirrer and a rotating shaft, the tank body is composed of a plurality of shell parts, one of the shell parts can be detached to facilitate installation and maintenance when needed, the rotating shaft is rotatably installed in the center of the tank body, a driving belt wheel is installed at one end of the rotating shaft, and a cavity is formed in the rotating shaft; a molecular distillation chamber and a stirring chamber are arranged in the tank body, all reaction processes for preparing sucrose-6-ester can be completed in the tank body at a time through modification of molecular distillation equipment, the reaction processes and upstream and downstream connection time are shortened, and the production efficiency of sucrose-6-ester is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of sucrose-6-ester production, and more particularly to a multi-layer scraper-type continuous production equipment for sucrose-6-ester. Background Technology

[0002] Sucralose, also known as sucralose, is a highly sweetener, approximately 600 times sweeter than sucrose. It was jointly developed and patented by Tyrell & Co. and the University of London in 1976 and officially launched on the market in 1988. The chemical name of sucralose is 4,1',6'-trichloro-4,1',6'-trideoxygalactosucrose, with the molecular formula C12H19O8Cl3 and a molecular weight of 397.64. In food processing, sucralose is highly stable and can be added at any stage of the process, making it convenient and effective. It is widely used in beverages, baked goods, and preserved fruits. For example, in beverages, the typical addition level is 0.013% to 0.016% to ensure appropriate sweetness. In baked goods, because sucralose is heat-resistant and its sweetness remains unchanged after high-temperature heating, it is commonly found in pastries and candies.

[0003] Currently, a widely accepted organotin catalytic technique is used to synthesize sucrose-6-ester. The specific steps include: first, mixing sucrose with a polar aprotic solvent (such as DMF) and an organotin catalyst, and then initiating a tinification reaction by heating and stirring. This reaction converts sucrose into an organotin sucrose complex and produces water, forming a preliminary reaction mixture; subsequently, removing the water from the mixture using an appropriate method to prepare an anhydrous second reaction mixture; finally, adding carboxylic anhydride and cooling and stirring to complete the synthesis of sucrose-6-ester.

[0004] However, existing sucralose-6-ester production processes have some shortcomings, including cumbersome processes, low production efficiency, and high costs. With the increasing market demand for sucralose, existing production technologies and equipment are struggling to meet the growing production needs, necessitating improvements and upgrades to increase production efficiency and reduce costs. Summary of the Invention

[0005] Therefore, this invention was made in view of the above problems. The purpose of this invention is to modify the molecular distillation equipment so that all reaction processes can be completed in one go, and to shorten the entire production process of sucrose 6 ester, the time of each process, etc., thereby improving production efficiency and solving the problems of multiple processes and low production efficiency in existing production technologies. This invention achieves the above objectives through the following technical solutions:

[0006] A multi-layer scraper-type continuous production equipment for sucrose-6-ester includes: a molecular distillation apparatus, a water collector, a stirring device, a drive pulley, a motor, a driven pulley, and a belt;

[0007] The molecular distillation apparatus includes: a tank body, a light and heavy component condenser plate 1, a light and heavy component condenser plate 2, a heating plate, a scraper, a stirrer, and a rotating shaft. The tank body is composed of multiple shell parts, one of which can be disassembled for easy installation and maintenance when needed. A rotating shaft is rotatably mounted at the center of the tank body, with a drive pulley mounted at one end. The rotating shaft has an internal cavity. The tank body contains two parts: a molecular distillation chamber and a stirring chamber. The stirring chamber section of the tank body has two symmetrically arranged inlet pipes 1 and 2. The stirring chamber contains a stirrer fixedly mounted on the rotating shaft. The stirrer has a stirring paddle and a liquid inlet. When the stirrer rotates, the stirring paddle... The agitator will stir and mix the liquid entering the mixing chamber. The mixed liquid will enter the shaft from the inlet. The outer wall of the molecular distillation chamber is equipped with multiple water outlet pipes and liquid outlet pipes. The inner wall of the molecular distillation chamber has multiple semi-annular protrusions. Light and heavy component condenser plate 1 and light and heavy component condenser plate 2 are rotatably installed on each semi-annular protrusion or between two adjacent semi-annular protrusions. There are two light and heavy component condenser plates 1 installed on both sides of the molecular distillation chamber, and one light and heavy component condenser plate 2 installed in the middle of the molecular distillation chamber. Both light and heavy component condenser plates 1 and light and heavy component condenser plate 2 are fixedly connected to the shaft.

[0008] The light and heavy component condensation plate is a cylindrical disc with two parts on one side: a first heavy component condensation area and a first light component condensation area. The thickness of the first heavy component condensation area is greater than that of the first light component condensation area. A limiting groove is provided on the circumferential surface closer to the first heavy component condensation area. The light and heavy component condensation plate can be rotatably installed inside the tank by cooperating with the adjacent semi-annular protrusion through the limiting groove. This allows the first light component condensation area on the light and heavy component condensation plate to form a first light component liquid collection area between the first light component condensation area on the light and heavy component condensation plate and the adjacent semi-annular protrusion. The first light component liquid collection area can be connected to the water outlet pipe on the outer wall of the tank.

[0009] The second light and heavy component condensation plate is also a cylindrical disc, with two parts on its left and right sides: a second heavy component condensation area and a second light component condensation area. Two symmetrical limiting slots are provided on the circumferential surface near the second heavy component condensation areas on both sides. The second light component condensation plate can be rotatably installed inside the tank by cooperating with the two adjacent semi-annular protrusions through the limiting slots on both sides. This allows the two second light component condensation areas on the left and right sides of the second light component condensation plate to form two symmetrical second light component collection areas between the two adjacent semi-annular protrusions on the left and right sides. The second light component collection areas can also be connected to the water outlet pipe on the outer wall of the tank.

[0010] The heating plate is a cylindrical plate with heating surfaces on its left and right sides. Liquid-blocking grooves are provided on the circumference of both heating surfaces. These grooves block excess liquid sprayed onto the heating surfaces and allow it to return to the heating surfaces as the heating plate rotates. The heating surfaces on both sides of the heating plate form a heavy component collection area with the first or second heavy component condensation area on the adjacent light and heavy component condensation plate 1 or 2. This heavy component collection area is connected to a liquid outlet pipe on the outer wall of the tank, allowing the collected liquid to be discharged through the outlet pipe. Scrapers are rotatably mounted on the heating surfaces on both sides of the heating plate. The scrapers are hollow and fixedly connected to a rotating shaft, with the interior of the scraper communicating with the shaft. A spray head is located on the circumference of the scraper, and a spray groove is located on the end face of the spray head that contacts the heating surface. One end of the spray head is hollow and communicates with the interior of the scraper, while the other end communicates with the spray groove.

[0011] The water collector is installed below the molecular distillation apparatus. The water collector is a hollow rectangular shell. Multiple water outlet pipes located below the molecular distillation apparatus can communicate with the interior of the water collector. Multiple liquid outlet pipes located below the molecular distillation apparatus can pass through the water collector but are not connected to the interior of the water collector. A vacuum tube is provided on the front end face of the water collector, and a drain pipe is provided on the left end face of the water collector. The drain pipe can communicate with the interior of the water collector. A motor bracket is installed on the other end face of the water collector, and a motor is fixedly installed on the motor bracket. The motor can be connected to the rotating shaft inside the molecular distillation apparatus. The light component liquid water flowing out from the multiple water outlet pipes below the molecular distillation apparatus will flow into the interior of the water collector and then be discharged through the drain pipe on the water collector.

[0012] The stirring device is installed below the water collector. The stirring device contains a mixing device and a stirring unit. The mixing device is a hollow shell, with its upper end fixedly installed on the end face below the water collector. The liquid outlet pipe can communicate with the interior of the mixing device. Liquid inlet pipes are also symmetrically installed on the left and right end faces of the mixing device, and the liquid inlet pipes can communicate with the interior of the mixing device. A drain port is provided at the center of the bottom of the mixing device. The heavy component liquid substance and the reaction liquid substance enter the interior of the mixing device from the multiple liquid outlet pipes and the liquid inlet pipes at both ends of the mixing device. After preliminary flow mixing inside the mixing device, they flow out from the drain port at the center of the bottom. The stirring device is installed at the bottom of the mixing device. A stirring rod is rotatably installed inside the stirring device. A driven pulley is fixedly installed at one end of the stirring rod. The driven pulley can be dynamically connected to the driving pulley on the rotating shaft through a belt. The surface of the stirring rod has symmetrical spiral blades with opposite spirals. Two symmetrical drain pipes are fixedly installed on the two end faces of the stirring device.

[0013] Beneficial effects of this invention:

[0014] 1. By rotating the light and heavy component condenser plate and the scraper, the light component condensation zone and the heavy component condensation zone alternate in the same evaporation area, realizing the cooling and collection of the heavy component gaseous substance. This ensures that the collected heavy component liquid substance is completely dry and is cooled during the collection process. After cooling, it can immediately enter the third step of the reaction. Cooling during the collection process saves time and improves production efficiency.

[0015] 2. The stanning reaction of sucrose solution and the removal of reaction water are completed simultaneously on both sides of the heating plate, eliminating the need for a separate process of removing reaction water and improving the production efficiency of sucrose-6-ester.

[0016] 3. Molecular distillation requires a lower temperature. Water molecules can be removed simply by creating a certain temperature difference between the heating plate and the condensation plate of the light and heavy components, which makes the energy consumption of the whole equipment relatively small.

[0017] 4. When the carboxylic anhydride solution and the organotin sucrose complex solution flow into the mixing device, they undergo preliminary flow mixing before flowing into the stirring device. Under the stirring action of the spiral blades, they undergo secondary mixing. During mixing, the mixture is evenly dispersed on the surface of the spiral blades under the centrifugal force of the rotating spiral blades, forming a thin liquid film. The mixture in the liquid film state can react rapidly, thereby improving the reaction efficiency of the carboxylic anhydride solution and the organotin sucrose complex, and thus improving the overall production efficiency of sucrose-6-ester. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-layer scraper-type continuous production equipment for sucrose-6-ester according to the present invention.

[0019] Figure 2 This is a schematic diagram of the molecular distillation apparatus in a multi-layer scraped sucrose-6-ester continuous production equipment of the present invention.

[0020] Figure 3 This is a front cross-sectional view of the light component collection state in the multi-layer scraper-type sucrose-6-ester continuous production equipment of the present invention.

[0021] Figure 4 This is a front cross-sectional view of the heavy component collection state in the multi-layer scraper-type sucrose-6-ester continuous production equipment of the present invention.

[0023] 100. Molecular distillation apparatus; 101. First light component collection zone; 102. Heavy component collection zone; 103. Second light component collection zone; 110. Tank body; 111. Molecular distillation chamber; 112. Stirring chamber; 112a. Feed pipe one; 112b. Feed pipe two; 113. Semi-annular protrusion; 114. Water outlet pipe; 115. Liquid outlet pipe; 120. Light and heavy component condensing plate one; 121. First heavy component condensing zone; 121a. Limiting groove one; 122. First light component condensing zone; 130. Light and heavy component condensing plate two; 131. Second heavy component condensing zone; 131a. Limiting groove two; 13 2. Second light component condensation zone; 140, heating plate; 141, liquid blocking tank; 150, scraper; 151, spray head; 160, stirrer; 161, stirring paddle; 162, liquid inlet; 170, rotating shaft; 200, water collector; 210, vacuum tube; 220, drain pipe; 230, motor bracket; 300, stirring equipment; 310, mixing device; 311, liquid inlet pipe; 312, liquid outlet; 320, stirring device; 321, stirring rod; 322, spiral blade; 323, drain pipe; 400, driving pulley; 500, electric motor; 600, driven pulley; 700, belt. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, a multi-layer scraped sucrose-6-ester continuous production equipment includes: a molecular distillation apparatus 100, a water collector 200, a stirring device 300, a drive pulley 400, a motor 500, a driven pulley 600, and a belt 700.

[0026] like Figures 1 to 4As shown, the molecular distillation apparatus 100 includes: a tank body 110, a light and heavy component condenser plate 120, a light and heavy component condenser plate 130, a heating plate 140, a scraper 150, a stirrer 160, and a rotating shaft 170. The tank body 110 is composed of multiple shell parts, one of which can be disassembled for easy installation and maintenance when needed. The rotating shaft 170 is rotatably mounted at the center of the tank body 110. A drive pulley 400 is mounted at one end of the rotating shaft 170. The interior of the rotating shaft 170 has... The cavity, the tank body 110, has two parts: a molecular distillation chamber 111 and a stirring chamber 112. The stirring chamber 112 has two symmetrically arranged inlet pipes 112a and 112b on the tank body 110. The stirring chamber 112 contains a stirrer 160 fixedly mounted on a rotating shaft 170. The stirrer 160 has a stirring paddle 161 and a liquid inlet 162. When the stirrer 160 rotates, the stirring paddle 161 will push the liquid entering the stirring chamber 112... The internal liquid is stirred and mixed, and the mixed liquid enters the rotating shaft 170 through the liquid inlet 162. The outer wall of the tank 110 of the molecular distillation chamber 111 is provided with multiple water outlet pipes 114 and liquid outlet pipes 115. The inner wall of the tank 110 of the molecular distillation chamber 111 has multiple semi-annular protrusions 113, and a light and heavy component condenser plate 120 and a light and heavy component condenser plate are rotatably installed on each semi-annular protrusion 113 or between two adjacent semi-annular protrusions 113. The light and heavy component condenser plate 120 consists of two plates installed on both sides of the molecular distillation chamber 111, and the light and heavy component condenser plate 130 consists of one plate installed in the middle of the molecular distillation chamber 111. Both the light and heavy component condenser plate 120 and the light and heavy component condenser plate 130 are fixedly connected to the rotating shaft 170. Between the light and heavy component condenser plate 120 and the light and heavy component condenser plate 130, a heating plate 140 is installed on two adjacent semi-annular protrusions 113 on the tank body 110.

[0027] The light and heavy component condensing plate 120 is a cylindrical disc with two parts on one side: a first heavy component condensing area 121 and a first light component condensing area 122. The thickness of the first heavy component condensing area 121 is greater than that of the first light component condensing area 122. A limiting groove 121a is provided on the circumferential surface closer to the first heavy component condensing area 121. The light and heavy component condensing plate 120 can be rotatably installed inside the tank 110 by cooperating with the adjacent semi-annular protrusion 113 through the limiting groove 121a. This allows the first light component condensing area 122 on the light and heavy component condensing plate 120 to form a first light component liquid collection area 101 between the first light component condensing area 122 and the adjacent semi-annular protrusion 113. The first light component liquid collection area 101 can be connected to the water outlet pipe 114 on the outer wall of the tank 110, so that the liquid collected in the first light component liquid collection area 101 can be discharged through the water outlet pipe 114.

[0028] The second light component condensing plate 130 is also a cylindrical disc, with two parts on its left and right sides: a second heavy component condensing area 131 and a second light component condensing area 132. Two symmetrical limiting slots 131a are provided on the circumferential surface near the second heavy component condensing areas 131 on both sides. The second light component condensing plate 130 can be rotatably installed inside the tank 110 by cooperating with the two adjacent semi-annular protrusions 113 through the limiting slots 131a on both sides. This allows the two second light component condensing areas 132 on the left and right sides of the second light component condensing plate 130 to form two symmetrical second light component liquid collection areas 103 between the two adjacent semi-annular protrusions 113 on the left and right sides. The second light component liquid collection areas 103 can also be connected to the water outlet pipe 114 on the outer wall of the tank 110, so that the liquid collected in the second light component liquid collection areas 103 can be discharged through the water outlet pipe 114.

[0029] The heating plate 140 is a cylindrical plate with heating surfaces on its left and right sides. Liquid-blocking grooves 141 are provided on the circumference of each heating surface. These grooves block excess liquid sprayed onto the heating surface and allow it to return as the heating plate 140 rotates. The heating surfaces on both sides of the heating plate 140, together with the first or second heavy component condensation zone 121 on the adjacent light and heavy component condensation plate 120 or light and heavy component condensation plate 130, form a heavy component collection area 102. This heavy component collection area 102 is connected to a liquid outlet pipe 115 on the outer wall of the tank 110, allowing the liquid collected in the heavy component collection area 102 to exit through the liquid outlet pipe 115. The heating plate 140 is rotatably mounted on the heating surfaces on both sides. The scraper 150 is hollow and fixedly connected to the rotating shaft 170. The interior of the scraper 150 can communicate with the interior of the rotating shaft 170. The circumferential surface of the scraper 150 has a spray head 151. The end face of the spray head 151 that contacts the heating surface has a spray groove. The interior of the spray head 151 is hollow. One end can communicate with the interior of the scraper 150, and the other end can communicate with the spray groove. The mixed liquid can enter the interior of the scraper 150 from the interior of the rotating shaft 170, then flow into the spray head 151, and finally spray the mixed liquid onto the heating surface of the heating plate 140 through the spray groove.

[0030] The water collector 200 is installed below the molecular distillation apparatus 100. The water collector 200 is a hollow rectangular shell. Multiple water outlet pipes 114 located below the molecular distillation apparatus 100 can communicate with the interior of the water collector 200. Multiple liquid outlet pipes 115 located below the molecular distillation apparatus 100 can pass through the water collector 200 but are not connected to its interior. A vacuum tube 210 is provided on the front end face of the water collector 200, and a drain pipe is provided on the left end face of the water collector 200. 220, the drain pipe 220 can be connected to the inside of the water collector 200, and a motor bracket 230 is installed on the other end face of the water collector 200. A motor 500 is fixedly installed on the motor bracket 230. The motor 500 can be connected to the rotating shaft 170 inside the molecular distillation apparatus 100. The light component liquid water flowing out from the multiple water outlet pipes 114 below the molecular distillation apparatus 100 will flow into the inside of the water collector 200 and then be discharged through the drain pipe 220 on the water collector 200.

[0031] The stirring device 300 is installed below the water collector 200. The stirring device 300 includes a mixing device 310 and a stirring device 320. The mixing device 310 is a hollow shell, with its upper end fixedly installed on the end face below the water collector 200. An outlet pipe 115 communicates with the interior of the mixing device 310. Inlet pipes 311 are symmetrically installed on both ends of the mixing device 310, communicating with its interior. A drain outlet 312 is located at the center of the bottom of the mixing device 310. The heavy component liquid and the reaction liquid enter the mixing device 310 through the multiple outlet pipes 115 and the inlet pipes 311 at both ends of the mixing device 310. After initial mixing within the mixing device 310, they flow out through the drain outlet 312 at the center of the bottom. The stirring device 320 is installed on the mixing device... At the lower end of the device 310, a stirring rod 321 is rotatably installed inside the stirring device 320. A driven pulley 600 is fixedly installed at one end of the stirring rod 321. The driven pulley 600 can be dynamically connected to the driving pulley 400 on the rotating shaft 170 through the belt 700. The surface of the stirring rod 321 has symmetrical anti-spiral spiral blades 322. Two symmetrical drain pipes 323 are fixedly installed at both ends of the stirring device 320. After the liquid that has been initially mixed enters the interior of the stirring device 320, it will be mixed again by the stirring action of the spiral blades 322. At the same time, the mixture will be evenly dispersed on the surface of the spiral blades 322 under the centrifugal action of the rotation of the spiral blades 322 to form a thin liquid film. The mixture will react rapidly in the liquid film state. Finally, the reacted liquid is discharged from the drain pipes 323 at both ends of the stirring device 320.

[0032] Working principle of this invention:

[0033] First, the air inside the molecular distillation apparatus 100 is evacuated through the vacuum tube 210 to create a negative pressure. Then, the motor 500 rotates, driving the rotating shaft 170 to rotate. The rotating shaft 170 then drives the light and heavy component condenser plate 120, the light and heavy component condenser plate 130, and the scraper 150 to rotate synchronously. Since the stirring rod 321 in the stirring device 320 is dynamically connected to the drive pulley 400 on the rotating shaft 170 via the belt 700, the stirring rod 321 also rotates with the rotating shaft 170. The sucrose solution dissolved in the polar aprotic solvent and the organotin acylation promoter are fed into the stirring chamber 112 inside the molecular distillation apparatus 100 through the feed pipe 112a and the feed pipe 212b, respectively. The sucrose solution and the organotin acylation promoter will be stirred in the stirrer. Mixing is carried out under the rotation of 160. The mixed liquid enters the interior of the rotating shaft 170 through the inlet 162 on the stirrer 160. Then, the mixed liquid flows along the interior of the rotating shaft 170 to each scraper 150. As the scraper 150 rotates, the mixed liquid is sprayed out from the spray head 151 on the scraper 150 and forms a uniform liquid film on the heating surface of the heating plate 140 under the scraping action of the spray head 151. At the same time, the liquid film of the mixed liquid will begin to undergo a rapid tin-forming reaction under the heating action of the heating plate 140, generating a heavy component, organotin sucrose complex, and a light component, water. During the generation process, the water is directly evaporated into gas and escapes along the evaporation surface. Because the mean free path of water molecules is greater than that of organotin sucrose complex... Because of its large mean free path, water molecules move directly to the surface of the first light component condensation zone 122 or the second light component condensation zone 132 on the light and heavy component condensation plate 120 or the light and heavy component condensation plate 130 adjacent to the heating plate 140. Under the cooling effect of the light component condensation zone, they rapidly condense into droplets, then flow along the surface of the first light component condensation zone 122 or the second light component condensation zone 132 to the lower first light component collection zone 101 or the second light component collection zone 103. From there, they are discharged into the water collector 200 through the outlet pipe 114 at the bottom of each condensation zone, and finally discharged through the drain pipe 220 on the water collector 200. The gaseous heavy component, organotin sucrose complex, cannot reach the surface due to its smaller mean free path. On the surface of the first light component condensation zone 122 or the second light component condensation zone 132, as the light and heavy component condensation plates 120 and 130 rotate, the first and second heavy component condensation zones 121 and 131 will rotate to the gaseous heavy component material region. Since the heavy component condensation zone is closer to the heating surface of the heating plate 140, the gaseous heavy component material will rapidly condense into droplets under the cooling effect of the heavy component condensation zone, and then flow along its surface into the heavy component collection zone 102 below. Then, it will be discharged from the outlet pipe 115 at the lower end of the heavy component collection zone 102 into the mixing device 310 in the stirring device 300 below, resulting in a completely dry and low-temperature organotin sucrose complex.Simultaneously, the carboxylic anhydride liquid enters the mixing device 310 through the inlet pipes 311 at both ends. After initial flow mixing inside the mixing device 310, the carboxylic anhydride solution and the organotin sucrose complex solution flow into the stirring device 320 through the drain port 312 at the bottom center. Then, secondary mixing occurs under the stirring action of the spiral blades 322. During mixing, the mixture is evenly dispersed on the surface of the spiral blades 322 under the centrifugal force of their rotation, forming a thin liquid film and reacting rapidly. After complete reaction, sucrose-6-ester is formed. Finally, the reacted liquid is discharged from the drain pipes 323 at both ends of the stirring device 320.

Claims

1. A multi-layer scraper-type continuous production equipment for sucrose-6-ester, comprising: Molecular distillation apparatus (100), water collector (200), stirring device (300), drive pulley (400), electric motor (500), driven pulley (600), belt (700); characterized in that: the molecular distillation apparatus (100) includes: tank body (110), light and heavy component condenser plate one (120), light and heavy component condenser plate two (130), heating plate (140), scraper (150), stirrer (160), rotating shaft (170), the tank body (110) is composed of multiple shell parts, the rotating shaft (170) is installed at the center of the tank body (110), the drive pulley (400) is installed at one end of the rotating shaft (170), the rotating shaft (170) has a cavity inside, the tank body (110) is used for molecular distillation The chamber (111) consists of a stirring chamber (112) and a mixing chamber (112). The mixing chamber (112) is symmetrically provided with a feed pipe 1 (112a) and a feed pipe 2 (112b). The mixing chamber (112) is equipped with a stirrer (160), which has a stirring paddle (161) and a liquid inlet (162). The outer wall of the tank (110) of the molecular distillation chamber (111) is provided with multiple water outlet pipes (114) and liquid outlet pipes (115). The inner wall of the tank (110) of the molecular distillation chamber (111) is provided with multiple semi-annular protrusions (113). Each semi-annular protrusion (113) or between two adjacent semi-annular protrusions (113) is equipped with a light and heavy component condenser plate 1 (120) and a light and heavy component condenser plate 2 (130). A heating plate (140) is installed between the first light heavy component condensing plate (120) and the second light heavy component condensing plate (130). The first light heavy component condensing plate (120) consists of a first heavy component condensing zone (121) and a first light component condensing zone (122). The thickness of the first heavy component condensing zone (121) is greater than the thickness of the first light component condensing zone (122). A limiting groove (121a) is opened on the first heavy component condensing zone (121). A first light component collection zone (101) is formed between the first light component condensing zone (122) and the adjacent semi-annular protrusion (113). The second light heavy component condensing plate (130) has two second heavy component condensing zones (131) and second light component condensing zones (132) on both the left and right sides. Partially, each of the two second heavy component condensation zones (131) is provided with a limiting slot (131a). The two second light component condensation zones (132) on the left and right sides and the two adjacent semi-annular protrusions (113) form two symmetrical second light component collection zones (103). The heating plate (140) forms heavy component collection zones (102) between the first heavy component condensation zone (121) or the second heavy component condensation zone (131) on the left and right sides. Scrapers (150) are installed on the left and right sides of the heating plate (140). A spray head (151) is provided on the circumferential surface of the scraper (150). The water collector (200) is installed below the molecular distillation apparatus (100). The water collector (200) is a hollow rectangular shell.A vacuum tube (210) is provided on the front end face of the water collector (200), and a drain pipe (220) is provided on the left end face of the water collector (200). The stirring device (300) is installed below the water collector (200). The stirring device (300) includes a mixing device (310) and a stirring device (320). The mixing device (310) is a hollow shell, and its upper end is fixedly installed on the end face below the water collector (200). Inlet pipes (311) are also symmetrically installed on the left and right end faces of the mixing device (310). A drain port (312) is provided at the center position below the mixing device (310). The stirring device (320) is installed at the lower end of the mixing device (310). A stirring rod (321) is installed inside the stirring device (320). The surface of the stirring rod (321) has symmetrical spiral blades (322) that are opposite to each other. Two symmetrical drain pipes (323) are fixedly installed on the two end faces of the stirring device (320). , 2. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: There are two light and heavy component condenser plates (120), which are installed on both sides inside the molecular distillation chamber (111). There is one light and heavy component condenser plate (130), which is installed in the middle inside the molecular distillation chamber (111). Both light and heavy component condenser plates (120) and light and heavy component condenser plates (130) are fixedly connected to the rotating shaft (170).

3. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: The first light component collection area (101) and the second light component collection area (103) are both connected to the water outlet pipe (114), and the heavy component collection area (102) is connected to the liquid outlet pipe (115).

4. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: The heating plate (140) is a cylindrical plate with heating surfaces on its left and right sides, and liquid-blocking grooves (141) are provided on the circumference of the heating surfaces on both sides.

5. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: The inside of the film scraper (150) is hollow and fixedly connected to the rotating shaft (170). The inside of the film scraper (150) is connected to the inside of the rotating shaft (170). The end face of the spray head (151) has a spray groove. The inside of the spray head (151) is hollow. One end of it can be connected to the inside of the film scraper (150), and the other end can be connected to the spray groove.

6. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: The water outlet pipe (114) can communicate with the interior of the water collector (200), the liquid outlet pipe (115) can pass through the water collector (200) but is not connected to the interior of the water collector (200), and the liquid outlet pipe (115) is connected to the interior of the mixing device (310).

7. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: A motor bracket (230) is installed on the end face of the water collector (200), and a motor (500) is fixedly installed on the motor bracket (230). The motor (500) can be connected to the rotating shaft (170) inside the molecular distillation apparatus (100).

8. The multi-layer scraper-type continuous production equipment for sucrose-6-ester according to claim 1, characterized in that: A driven pulley (600) is fixedly installed at one end of the stirring rod (321). The driven pulley (600) is connected to the driving pulley (400) on the rotating shaft (170) through a belt (700).

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