Continuous automatic sucralose production process

Abstract

The invention provides a continuous automatic sucralose production process, and relates to the technical field of sucralose production, the sucralose production process comprises a ladle baking section, and the ladle baking section comprises the following steps: (1) single-effect and crystallization: (1) starting a feeding pump, feeding sweet water into a single-effect kettle from a sweet water tank, then starting a circulating pump, stopping feeding, and supplementing the sweet water in batches; (2) after the materials in the single-effect kettle meet the requirements, starting an extraction pump, and feeding the materials to a crystallization kettle for crystallization through a fine filter; (2) centrifuging: starting a vacuum unit, stirring the crystallized syrup, closing the vacuum unit, and drying to obtain sucralose; and (3) packaging. According to the sucralose production process, the sucralose yield and quality can be effectively improved, the labor intensity of workers is reduced, and an automatic process is realized.

Description

Technical Field

[0001] The invention relates to the technical field of sucralose production, and in particular to a continuous and automated sucralose production process. Background Art

[0002] Sucralose (TGS) is a new sweetener developed jointly by Tate & Lyle and the University of London and patented in 1976. It is the only functional sweetener made from sucrose and its sweetness can be up to 600 times that of sucrose. This sweetener has the characteristics of no energy, high sweetness, pure sweetness and high safety. It is currently one of the best functional sweeteners.

[0003] Sucralose production usually uses sucrose as raw material, and the finished sucralose is obtained through tinning, esterification, chlorination, alcoholysis, and baking. The baking process, as the final finished product output process, directly affects the product production capacity. At present, the industrial sucralose production process is mainly based on intermittent production, which has the problems of low production capacity, high cost, time-consuming and labor-intensive, high labor intensity of workers, and poor on-site environment.

[0004] Prior art such as patent CN117801035A discloses a continuous single-effect treatment process for sucralose syrup. The invention adopts a single-effect reactor and a continuous feeding method, changes the traditional single-batch process, and improves the intermittent chemical reaction unit into a continuous operation unit, thereby realizing continuous and automatic operation of the device, reducing equipment investment and floor space, and reducing the cost of device construction; using a continuous single-effect reactor, the temperature, vacuum degree and sugar content after dealcoholization in the single-effect process can be finely controlled to reduce the amplification effect and improve the yield; the device can realize continuous and automatic operation, avoid excessive participation of personnel in the production of the device, save manpower, reduce labor costs, and improve the safety of the device; the continuous and automatic operation process can reduce human operating errors, improve production stability, indirectly increase the average yield of the reaction, reduce consumption, and save costs.

[0005] For example, patent CN115721946A discloses a method for continuous single-effect concentration of sucralose, which specifically includes: (1) the mother liquor sugar water after decolorization is pumped into a single-effect evaporator, the pressure is controlled at -0.075--0.1Mpa, the temperature is less than 60°C, and the sugar content is 55-60 when it is collected to the crystallization kettle; (2) the gas phase coming out of the top of the evaporator is successively condensed by the first and second stages, wherein the temperatures of the first and second stages are 42-48°C and 10-15°C respectively, and the condensate in the first and second stages enters the receiving tank; the gas phase coming out of the top of the receiving tank enters the buffer tank, the pressure of the buffer tank is -0.088--0.1Mpa, and the liquid in the receiving tank and the buffer tank then enters the storage tank. This invention: the equipment is simple, and it only needs to control the flow rate and temperature of each single effect during production, which reduces the difficulty of operation and makes the operation easier. Continuous production increases the production load of the device and improves production efficiency.

[0006] In view of the problems existing in the prior art, it is necessary to find a low-cost, high-efficiency, continuous and automated sucralose production process. Summary of the invention

[0007] The present invention aims at the problems existing in the prior art and provides a continuous and automated sucralose production process, which can effectively reduce and improve the yield and quality of sucralose, reduce the labor intensity of workers and realize an automated process.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0009] The present invention provides a sucralose production process, including a bag baking process, wherein the bag baking process includes: (1) single effect, crystallization:

[0010] ① Start the feed pump to feed sugar water from the sugar water tank into the single-effect kettle, then start the circulation pump, stop feeding, and add sugar water in batches;

[0011] ② After the material in the single-effect kettle reaches the requirements, open the extraction pump and send it to the crystallization kettle for crystallization through the fine filter;

[0012] (2) Centrifugation: Start the vacuum unit, stir the crystallized sugar water, turn off the vacuum unit, dry, and obtain sucralose;

[0013] (3) Packaging.

[0014] Furthermore, the circulation pump in step (1) is 1-3 m 3 Start when the sugar water is fed, and stop feeding 5-7m 3 Stop when the sugar water is added, and the sugar water is added to 16-20m 3 .

[0015] Preferably, the circulating pump in step (1) is 2 m3 Start when the sugar water is fed, and stop feeding after 6m 3 Stop when the sugar water is added, and the sugar water is added to 18m 3 .

[0016] The adding in batches refers to adding in 2-3 batches.

[0017] Furthermore, the material in the single-effect kettle in step (1) meets the requirement, specifically the sugar content is 55-60%.

[0018] It is worth noting that the sugar content (%) mentioned in the present invention is a mass fraction.

[0019] Furthermore, the crystallization in step (1) is carried out at 6-8°C, the sugar content is detected during the crystallization process, and the material is discharged when the sugar content is ≤28%.

[0020] Preferably, the crystallization is carried out at 8°C.

[0021] Furthermore, a flow meter is provided between the sugar water tank and the single-effect kettle.

[0022] Furthermore, when the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to ≤1000L through the flow meter, and when the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to ≥2000L through the flow meter.

[0023] Preferably, when the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to 1000 L through the flow meter, and when the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to 2000 L through the flow meter.

[0024] Furthermore, in step (1), there are more than two single-effect kettles, which are connected in series, and each single-effect kettle is connected in parallel with more than two extraction pumps. The outlet pipeline of the extraction pump is provided with more than five outlet pipelines connected to the sugar water tank (the function here is that after the material is fed in, the sugar water in the pipeline is back-flushed through the compressor, and the sugar water in the pipeline is directly back-flushed into the sugar water tank without passing through the extraction pump, thereby preventing the pipeline from being crystallized and blocked), and the outlet pipeline of the extraction pump is provided with more than five outlet pipelines connected to the fine filter.

[0025] Furthermore, the packaging in step (3) is integrated automatic packaging.

[0026] In some specific embodiments, the packaging in step (3) specifically includes the following steps:

[0027] S1: After the metal detector is turned on, the metal detector uses Fe0.8mm, NON-Fe1.0mm, SUS1.2mm test balls to test the equipment operation status. After the empty test and the material test are normal, the production and packaging will start. During the production process and before the end, a standard block with material is randomly used for testing once;

[0028] S2: After the test is normal, packaging will begin upon receiving the screening notification. The packaging specification is 1kg packaging within 1kg±0.002kg;

[0029] S3: Start the packaging machine, place the packaging bags, and start automatic packaging, including bag clamping, bag opening, material loading, material replenishment, reweighing, bag closing, sealing, and reweighing. After the reweighing, the machine will proceed to the final packaging.

[0030] S4: After packaging, unpack and bag before packaging. After the small packages in the front section are delivered, wipe the surface. After wiping clean, pack, tie, seal and stack.

[0031] S5: After production is completed, the product enters the inspection area and waits for quality control inspection. After passing the inspection, it is released into storage.

[0032] Furthermore, the drying in step (2) is oven drying.

[0033] Furthermore, the present invention also provides sucralose produced by the above-mentioned sucralose production process.

[0034] The technical effects achieved by the present invention are:

[0035] 1. The single-effect section of the present invention realizes a continuous automated process; after continuous feeding in the crystallization section, the sugar water in the pipeline is emptied through a branch pipe to prevent crystallization, thereby realizing a continuous automated process; the centrifugation section avoids material accumulation or uneven particle size of finished sugar, reduces the labor intensity of workers, reduces material loss, and improves the on-site working environment, thereby realizing a continuous automated process; the packaging section adopts fully automatic packaging, reduces the labor intensity of workers, and realizes a continuous automated process. This process can effectively improve the yield of sucralose and achieve efficient output by optimizing various parameters when adding sugar water.

[0036] 2. Currently, the industrial production of sucralose is mainly intermittent production, which has low production capacity, is time-consuming and labor-intensive, has high labor intensity for workers, or has a poor on-site environment. The present invention realizes continuous automated production, i.e., continuous input and output, by transforming the single-effect and crystallization positions, thereby reducing the labor intensity of workers; the labor intensity of workers in the centrifugal section is greatly reduced, and the overall environment on site is improved; in addition, the packaging section realizes automated packaging, which greatly reduces the labor intensity of workers, reduces the number of personnel, and improves the on-site environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the single-effect section and the crystallization section;

[0038] Figure 2 It is a schematic diagram of the centrifugal section;

[0039] Figure 3 This is a schematic diagram of the packaging section. DETAILED DESCRIPTION

[0040] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0041] Before further describing the specific embodiments of the present invention, it should be understood that the scope of protection of the present invention is not limited to the specific embodiments described below; it should also be understood that the terms used in the examples of the present invention are for describing specific embodiments rather than for limiting the scope of protection of the present invention.

[0042] When the embodiment gives a numerical range, it should be understood that, unless otherwise specified in the present invention, the two endpoints of each numerical range and any numerical value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those of ordinary skill in the art to which the present invention belongs.

[0043] It is worth noting that the raw materials used in the present invention are all common commercially available products, so their sources are not specifically limited.

[0044] The schematic diagram of the single-effect section and the crystallization section of the present invention is shown in Figure 1 , see the centrifugal section diagram for details Figure 2 , see the packaging section diagram for details Figure 3 .

[0045] Example 1

[0046] A sucralose production process includes a bag baking section, wherein the bag baking section includes:

[0047] (1) Single effect, crystallization:

[0048] ① Start the feed pump and feed sugar water from the sugar water tank into the single-effect kettle (a flow meter is set between the sugar water tank and the single-effect kettle. When the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to 1000L through the flow meter. When the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to 2000L through the flow meter). Then, 2m after the sugar water is fed, 3 Start the circulation pump at 6m after the sugar water is added. 3 After stopping feeding, add sugar water in batches until 16m 3 ;

[0049] ② After the material in the single-effect kettle reaches the requirement (that is, the sugar content reaches 58%), the extraction pump is turned on and the material is sent to the crystallization kettle for crystallization through the fine filter. The crystallization is carried out at 8°C. The sugar content is tested during the crystallization process. When the sugar content is ≤28%, the material is discharged;

[0050] There are two single-effect kettles mentioned above, which are connected in series. Each single-effect kettle is connected to two production pumps in parallel. The outlet pipelines of the two production pumps are equipped with five outlet pipelines to connect with the sugar water tank (the purpose here is that after the material is fed in, the sugar water in the pipeline is back-flushed through the compressor, and the sugar water in the pipeline is directly back-flushed into the sugar water tank without passing through the production pump, thereby preventing the pipeline from being crystallized and blocked). The outlet pipelines of the two production pumps are also equipped with more than five outlet pipelines to connect with the fine filter.

[0051] (2) Centrifugation: Use a wet finished product material cart to deliver the crystallized sugar water to a wet finished product material bin, start the vacuum unit, stir, turn off the vacuum unit, dry, and obtain sucralose;

[0052] (3) Integrated automatic packaging: The sucralose obtained in step (2) is sent to the finished product warehouse and then enters the small packaging unit for packaging, which is specifically the following steps:

[0053] S1: After the metal detector is turned on, the metal detector uses Fe0.8mm, NON-Fe1.0mm, SUS1.2mm test balls to test the equipment operation status. After the empty test and the material test are normal, the production and packaging will start. During the production process and before the end, a standard block with material is randomly used for testing once;

[0054] S2: After the test is normal, packaging will begin upon receiving the screening notification. The packaging specification is 1kg packaging within 1kg±0.002kg;

[0055] S3: Start the packaging machine, place the packaging bags, and start automatic packaging, including bag clamping, bag opening, material loading, material replenishment, reweighing, bag closing, sealing, and reweighing. After the reweighing, the machine will proceed to the final packaging.

[0056] S4: After packaging, unpack and bag before packaging. After the small packages in the front section are delivered, wipe the surface. After wiping clean, pack, tie, seal and stack.

[0057] S5: After production is completed, the product enters the inspection area and waits for quality control inspection. After passing the inspection, it is released into storage.

[0058] Example 2

[0059] A sucralose production process includes a bag baking section, wherein the bag baking section includes:

[0060] (1) Single effect, crystallization:

[0061] ① Start the feed pump and feed sugar water from the sugar water tank into the single-effect kettle (a flow meter is set between the sugar water tank and the single-effect kettle. When the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to 800L through the flow meter. When the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to 2200L through the flow meter). Then, after 1m 3 Start the circulation pump at 5m after the sugar water is added. 3 After stopping feeding, add sugar water in batches until 20m 3 ;

[0062] ② After the material in the single-effect kettle reaches the requirement (that is, the sugar content reaches 55%), the extraction pump is turned on and the material is sent to the crystallization kettle for crystallization through the fine filter. The crystallization is carried out at 6°C. The sugar content is tested during the crystallization process. The material is discharged when the sugar content is ≤28%;

[0063] There are two single-effect kettles mentioned above, which are connected in series. Each single-effect kettle is connected to two production pumps in parallel. The outlet pipelines of the two production pumps are equipped with five outlet pipelines to connect with the sugar water tank (the purpose here is that after the material is fed in, the sugar water in the pipeline is back-flushed through the compressor, and the sugar water in the pipeline is directly back-flushed into the sugar water tank without passing through the production pump, thereby preventing the pipeline from being crystallized and blocked). The outlet pipelines of the two production pumps are also equipped with more than five outlet pipelines to connect with the fine filter.

[0064] (2) Centrifugation: Use a wet finished product material cart to deliver the crystallized sugar water to a wet finished product material bin, start the vacuum unit, stir, turn off the vacuum unit, dry, and obtain sucralose;

[0065] (3) Integrated automatic packaging: The sucralose obtained in step (2) is sent to the finished product warehouse and then enters the small packaging unit for packaging, which is specifically the following steps:

[0066] S1: After the metal detector is turned on, the metal detector uses Fe0.8mm, NON-Fe1.0mm, SUS1.2mm test balls to test the equipment operation status. After the empty test and the material test are normal, the production and packaging will start. During the production process and before the end, a standard block with material is randomly used for testing once;

[0067] S2: After the test is normal, packaging will begin upon receiving the screening notification. The packaging specification is 1kg packaging within 1kg±0.002kg;

[0068] S3: Start the packaging machine, place the packaging bags, and start automatic packaging, including bag clamping, bag opening, material loading, material replenishment, reweighing, bag closing, sealing, and reweighing. After the reweighing, the machine will proceed to the final packaging.

[0069] S4: After packaging, unpack and bag before packaging. After the small packages in the front section are delivered, wipe the surface. After wiping clean, pack, tie, seal and stack.

[0070] S5: After production is completed, the product enters the inspection area and waits for quality control inspection. After passing the inspection, it is released into storage.

[0071] Example 3

[0072] A sucralose production process includes a bag baking section, wherein the bag baking section includes:

[0073] (1) Single effect, crystallization:

[0074] ① Start the feed pump and feed sugar water from the sugar water tank into the single-effect kettle (a flow meter is set between the sugar water tank and the single-effect kettle. When the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to 500L through the flow meter. When the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to 2500L through the flow meter). Then, 3m after the sugar water is fed, 3 Start the circulation pump at 7m after the sugar water is added. 3 After stopping feeding, add sugar water in batches until 18m 3 ;

[0075] ② After the material in the single-effect kettle reaches the requirement (that is, the sugar content reaches 60%), the extraction pump is turned on and the material is sent to the crystallization kettle for crystallization through the fine filter. The crystallization is carried out at 8°C. The sugar content is tested during the crystallization process. The material is discharged when the sugar content is ≤28%;

[0076] There are two single-effect kettles mentioned above, which are connected in series. Each single-effect kettle is connected to two production pumps in parallel. The outlet pipelines of the two production pumps are equipped with five outlet pipelines to connect with the sugar water tank (the purpose here is that after the material is fed in, the sugar water in the pipeline is back-flushed through the compressor, and the sugar water in the pipeline is directly back-flushed into the sugar water tank without passing through the production pump, thereby preventing the pipeline from being crystallized and blocked). The outlet pipelines of the two production pumps are also equipped with more than five outlet pipelines to connect with the fine filter.

[0077] (2) Centrifugation: Use a wet finished product material cart to deliver the crystallized sugar water to a wet finished product material bin, start the vacuum unit, stir, turn off the vacuum unit, dry, and obtain sucralose;

[0078] (3) Integrated automatic packaging: The sucralose obtained in step (2) is sent to the finished product warehouse and then enters the small packaging unit for packaging, which is specifically the following steps:

[0079] S1: After the metal detector is turned on, the metal detector uses Fe0.8mm, NON-Fe1.0mm, SUS1.2mm test balls to test the equipment operation status. After the empty test and the material test are normal, the production and packaging will start. During the production process and before the end, a standard block with material is randomly used for testing once;

[0080] S2: After the test is normal, packaging will begin upon receiving the screening notification. The packaging specification is 1kg packaging within 1kg±0.002kg;

[0081] S3: Start the packaging machine, place the packaging bags, and start automatic packaging, including bag clamping, bag opening, material loading, material replenishment, reweighing, bag closing, sealing, and reweighing. After the reweighing, the machine will proceed to the final packaging.

[0082] S4: After packaging, unpack and bag before packaging. After the small packages in the front section are delivered, wipe the surface. After wiping clean, pack, tie, seal and stack.

[0083] S5: After production is completed, the product enters the inspection area and waits for quality control inspection. After passing the inspection, it is released into storage.

[0084] Comparative Example 1

[0085] The only difference from Example 1 is that in step (1), the circulating pump is used for 4 minutes after the sugar water is fed. 3 Start at 10:00 and stop feeding after 8m of sugar water feeding. 3 Stop at 25 minutes and add sugar water in batches. 3 .

[0086] Comparative Example 2

[0087] The only difference from Example 1 is that when the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to 1200L through the flow meter, and when the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to 1800L through the flow meter.

[0088] The yield of sucralose obtained in step (2) of each embodiment and comparative example was weighed and calculated, as shown in the following table.

[0089] Table 1 Yield of sucralose in Examples and Comparative Examples

[0090] Examples Yield (%) purity(%) Example 1 78.9 99.7 Example 2 77.5 99.8 Example 3 75.2 99.8 Comparative Example 1 65.2 99.7 Comparative Example 2 70.3 99.8

[0091] According to the results in the above table, the sucralose produced by the continuous automated sucralose production process of the present invention has a high yield of more than 75.2% while ensuring a purity of more than 99.7%. Compared with conventional intermittent processes, the labor cost is lower, the staff is more streamlined, and the production efficiency is higher.

[0092] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A sucralose production process, characterized in that: The method comprises a bag baking section, wherein the bag baking section comprises: (1) Single effect, crystallization: ① Start the feed pump to feed sugar water from the sugar water tank into the single-effect kettle, then start the circulation pump, stop feeding, and add sugar water in batches; ② After the material in the single-effect kettle reaches the requirements, open the extraction pump and send it to the crystallization kettle for crystallization through the fine filter; (2) Centrifugation: Start the vacuum unit, stir the crystallized sugar water, turn off the vacuum unit, dry, and obtain sucralose; (3) Packaging.

2. The sucralose production process according to claim 1, characterized in that: The circulating pump in step (1) is 1-3 m 3 Start when the sugar water is fed, and stop feeding 5-7m 3 Stop when the sugar water is added, and the sugar water is added to 16-20m 3 .

3. The sucralose production process according to claim 2, characterized in that: The circulating pump in step (1) is 2m 3 Start when the sugar water is fed, and stop feeding after 6m 3 Stop when the sugar water is added, and the sugar water is added to 18m 3 .

4. The sucralose production process according to claim 1, characterized in that: The material in the single-effect kettle in step (1) meets the requirement that the sugar content is 55-60%.

5. The sucralose production process according to claim 1, characterized in that: The crystallization in step (1) is carried out at 6-8°C, the sugar content is detected during the crystallization process, and the material is discharged when the sugar content is ≤28%.

6. The sucralose production process according to claim 1, characterized in that: A flow meter is arranged between the sugar water tank and the single-effect kettle.

7. The process for producing sucralose according to claim 6, characterized in that: When the sugar content of the material in the single-effect kettle is less than 55%, the flow rate is reduced to ≤1000L through the flow meter; when the sugar content of the material in the single-effect kettle is greater than 60%, the flow rate is increased to ≥2000L through the flow meter.

8. The process for producing sucralose according to claim 1, characterized in that: In step (1), there are more than two single-effect kettles, which are connected in series. Each single-effect kettle is connected in parallel with more than two extraction pumps. The outlet pipeline of the extraction pump is provided with more than five outlet pipelines connected to the sugar water tank, and the outlet pipeline of the extraction pump is provided with more than five outlet pipelines connected to the fine filter.

9. The process for producing sucralose according to claim 1, characterized in that: The packaging in step (3) is integrated automatic packaging.

10. Sucralose produced by the sucralose production process according to any one of claims 1 to 9.

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