System for improving centrifugal efficiency of maltitol

Abstract

The utility model belongs to the field of sugar alcohol preparation, and relates to a system for improving the centrifugal efficiency of maltitol, which comprises a centrifugal machine, a conveying auger, a mother liquor tank, a washing liquor tank and a washing liquor pump. The centrifugal machine is respectively provided with a moist sugar outlet end, a liquid outlet end, a spraying device for cleaning a screen of the centrifugal machine and a cleaning liquid inlet end, the centrifugal machine is used for carrying out centrifugal treatment on the maltitol liquid to respectively obtain maltitol moist sugar and centrifugal mother liquid, and the maltitol moist sugar enters the conveying auger through the moist sugar outlet end. The mother liquor tank collects centrifugal mother liquor flowing out of the liquid outlet end through a mother liquor pipeline. And the liquid outlet end of the washing liquid tank is communicated with the washing liquid inlet end through a washing liquid pipeline. And a liquid return end is arranged on the washing liquid tank and is communicated with the liquid outlet end through a liquid return pipeline. The washing liquid tank is used for receiving washing liquid obtained after the centrifugal machine screen is washed through the spraying device after centrifugation is finished. The centrifugal machine screen cleaning device collects cleaning liquid for cleaning the centrifugal machine screen, the cleaning efficiency is improved, and the water consumption is reduced.

Description

Technical Field

[0001] This invention belongs to the field of sugar alcohol preparation, and specifically relates to a system for improving the centrifugation efficiency of maltitol. Background Art

[0002] Maltitol is a novel functional sweetener that has attracted widespread attention due to its low-calorie, non-cariogenic, indigestible, and calcium-absorbing properties. Centrifugation is an important step in the production of maltitol. During centrifugation, maltitol crystals are separated from other uncrystallized liquids by centrifugal force, yielding hygroscopic sugar (crystalline maltitol with high water content) and centrifugal mother liquor. Therefore, how to quickly separate the crystals and mother liquor during centrifugation is the core of the centrifugation process. However, in actual production, there are many factors that affect centrifugation efficiency: (1) Due to the high viscosity of maltitol, mother liquor is easily left on the crystal surface, resulting in insufficient purity. Therefore, water is usually needed to rinse the crystals during centrifugation to clean the mother liquor on the surface of the crystalline maltitol, thereby improving the purity of the crystalline maltitol. However, maltitol has good solubility. The rinsing operation during centrifugation not only washes away the mother liquor on the crystal surface but also causes the crystalline maltitol to redissolve, affecting the centrifugation yield and increasing production costs. (2) After centrifugation, a certain amount of hygroscopic sugar will remain on the centrifuge screen. It needs to be cleaned with water before the next cycle begins. However, due to the high viscosity of maltitol, the water washing cycle is long, which affects the centrifugation efficiency. At the same time, the amount of water used for washing also increases the concentration cost in the later stages. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a system for improving the centrifugation efficiency of maltitol, which cleans the mother liquor adhering to the surface of crystalline maltitol molasses, collects the washing liquid for cleaning the centrifuge screen, improves cleaning efficiency and reduces water consumption.

[0004] This invention provides a system for improving the centrifugation efficiency of maltitol, comprising a centrifuge, a conveying auger, and a mother liquor tank. The centrifuge is equipped with a molten maltitol outlet and a liquid outlet, the molten maltitol outlet being connected to the feed end of the conveying auger, and the liquid outlet being connected to the liquid inlet of the mother liquor tank via a mother liquor pipeline. The system also includes a washing liquid tank and a washing liquid pump. The washing liquid tank's inlet is connected to a purified water pipeline. The centrifuge is further equipped with a spray device for cleaning the centrifuge screen and a washing liquid inlet, the spray device and the washing liquid inlet being interconnected. The washing liquid tank's outlet is connected to the centrifuge's washing liquid inlet via a washing liquid pipeline, the washing liquid pump is mounted on the washing liquid pipeline, and a return liquid end is provided on the washing liquid tank, connected to the centrifuge's outlet via a return liquid pipeline. A mother liquor valve is mounted on the mother liquor pipeline, a washing liquid valve is mounted on the washing liquid pipeline, and a return liquid valve is mounted on the return liquid pipeline.

[0005] Furthermore, a cleaning steam pipe is provided at the inlet end of the cleaning liquid and connected to a cleaning steam source, and a steam valve is installed on the cleaning steam pipe.

[0006] Furthermore, a regulating valve is installed in the purified water pipeline.

[0007] Furthermore, an intermediate connecting pipe is provided between the purified water pipe and the washing liquid pipe to connect them.

[0008] Furthermore, a connecting valve is installed on the intermediate connecting pipe.

[0009] Compared with the prior art, the system for improving the centrifugation efficiency of maltitol of this invention has the following characteristics:

[0010] 1. Collect the solution from the previous centrifuge screen cleaning cycle and use it as the rinsing water for the next cycle to reduce the redissolution of crystals during the rinsing process, thereby improving the centrifugation yield;

[0011] 2. Using high-temperature clean steam instead of water to clean the residual moisture sugar on the centrifuge screen effectively shortens the cleaning time and thus improves centrifugation efficiency;

[0012] 3. Water consumption during the centrifugation process is effectively controlled, reducing water costs;

[0013] 4. The amount of sweet water produced by centrifugation is significantly reduced, which effectively improves the cost of subsequent evaporation and concentration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0015] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] Please refer to Figure 1 As shown, a preferred embodiment of the system for improving the centrifugation efficiency of maltitol according to the present invention includes a centrifuge 1, a conveying auger 2, a mother liquor tank 3, a washing liquid tank 4, and a washing liquid pump 5.

[0017] Centrifuge 1 is equipped with a molten sugar outlet 101, a liquid outlet 102, a spray device 6 for cleaning the centrifuge screen, and a cleaning liquid inlet 103. The molten sugar outlet 101 is connected to the feed end of the conveying auger 2, the liquid outlet 102 is connected to the inlet of the mother liquor tank 3 through the mother liquor pipe 7, and the spray device 6 is connected to the cleaning liquid inlet 103.

[0018] Centrifuge 1 is used to centrifuge the maltitol solution to obtain maltitol molten sugar and centrifuged mother liquor. The maltitol molten sugar enters the conveying auger 2 through the molten sugar outlet 101, and the discharge end of the conveying auger 2 is connected to the next process. Mother liquor tank 3 collects the centrifuged mother liquor flowing out from the outlet 102 of centrifuge 1 through mother liquor pipeline 7.

[0019] The inlet of the washing solution tank 4 is connected to the purified water pipeline 8, and the outlet of the washing solution tank 4 is connected to the cleaning solution inlet 103 of the centrifuge 1 through the washing solution pipeline 9. The washing solution pump 5 is installed on the washing solution pipeline 9. A return end is provided on the washing solution tank 4, and the return end is connected to the outlet 102 of the centrifuge 1 through the return end pipeline 10.

[0020] The washing liquid tank 4 is used to receive the washing liquid after the centrifugation is completed and the centrifuge screen is cleaned by the spray device 6. The washing liquid pump 5 is used to transport the washing liquid collected in the washing liquid tank 4 to the spray device 6 to spray the centrifuge screen for reuse.

[0021] A mother liquor valve 11 is installed on the mother liquor pipeline 7, a washing liquid valve 12 is installed on the washing liquid pipeline 9, and a return liquid valve 13 is installed on the return liquid pipeline 10.

[0022] A cleaning steam pipe 14 is also provided at the cleaning liquid inlet 103 and connected to a cleaning steam source, and a steam valve 15 is provided on the cleaning steam pipe 14.

[0023] External clean steam is used to clean the residual moisture sugar on the centrifuge screen through the spray device 6, which shortens the cleaning time, saves the amount of washing water, and further improves the washing efficiency, thereby improving the centrifugation efficiency of maltitol.

[0024] A regulating valve 16 is installed in the purified water pipeline 8. The regulating valve 16 is used to control the amount of purified water entering the washing solution tank 4.

[0025] An intermediate connecting pipe 17 is provided between the purified water pipe 8 and the washing solution pipe 9 to connect them. A connecting valve 18 is provided on the intermediate connecting pipe 17.

[0026] There are three ways to clean the damp sugar on the sieve of a centrifuge:

[0027] The first cleaning method is as follows: purified water enters the spray device 6 through the purified water pipe 8, the intermediate connecting pipe 17 and the washing liquid pipe 9 to wash the centrifuge screen.

[0028] The second cleaning method is: external clean steam enters the spray device 6 through the cleaning steam pipe 14 to wash the centrifuge screen.

[0029] The third cleaning method is: the washing liquid collected in the washing liquid tank 4 enters the spray device 6 through the washing liquid pump 5 and the washing liquid pipeline 9 to wash the centrifuge screen.

[0030] The washing solution obtained from each cleaning method enters the washing solution tank 4 through the liquid outlet 102 and the washing solution pipe 9 for temporary storage until use.

[0031] The first cleaning method uses a large amount of purified water but yields the most eluent. The second cleaning method requires steam and yields the least eluent. The third cleaning method requires neither purified water nor steam; the eluent circulates within the system. Any cleaning method can be freely selected based on usage requirements, or multiple methods can be used in combination.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for improving the centrifugation efficiency of maltitol, comprising a centrifuge, a conveying auger, and a mother liquor tank, wherein the centrifuge is provided with a molten sugar outlet and a liquid outlet, the molten sugar outlet being connected to the feed end of the conveying auger, and the liquid outlet being connected to the liquid inlet of the mother liquor tank via a mother liquor pipeline, characterized in that, The system also includes a washing liquid tank and a washing liquid pump. The inlet of the washing liquid tank is connected to a purified water pipeline. The centrifuge is also equipped with a spray device for cleaning the centrifuge screen and a washing liquid inlet. The spray device and the washing liquid inlet are connected to each other. The outlet of the washing liquid tank is connected to the washing liquid inlet of the centrifuge through a washing liquid pipeline. The washing liquid pump is installed on the washing liquid pipeline. A return end is installed on the washing liquid tank. The return end is connected to the outlet of the centrifuge through a return end pipeline. A mother liquor valve is installed on the mother liquor pipeline, a washing liquid valve is installed on the washing liquid pipeline, and a return liquid valve is installed on the return end pipeline.

2. The system for improving the centrifugation efficiency of maltitol as described in claim 1, characterized in that, A cleaning steam pipe is also provided at the inlet end of the cleaning liquid and connected to a cleaning steam source, and a steam valve is installed on the cleaning steam pipe.

3. The system for improving the centrifugation efficiency of maltitol as described in claim 1, characterized in that, A regulating valve is installed in the purified water pipeline.

4. The system for improving the centrifugation efficiency of maltitol as described in claim 1, characterized in that, An intermediate connecting pipe is installed between the purified water pipe and the washing liquid pipe to connect them.

5. The system for improving the centrifugation efficiency of maltitol as described in claim 4, characterized in that, A connecting valve is installed on the intermediate connecting pipe.

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