Efficient maltol sublimation system
By using anti-clogging components to spray soft water and control temperature differences during the maltol sublimation process, the problem of blockage in the vacuum pump and distillation pipe was solved, achieving efficient maltol sublimation, reducing equipment maintenance frequency and product loss, and improving production efficiency.
Patent Information
- Application Number
- CN202423237087.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the existing maltol sublimation process, the vacuum pump and distillation pipe are prone to clogging, resulting in high equipment maintenance frequency, large product loss and low production efficiency.
The system employs anti-clogging components, including a soft water storage tank and a spraying unit, to spray soft water into the first receiving vessel. This increases the contact area and probability between the powdered material and the water, preventing the material from entering the vacuum pump and distillation pipe. Combined with temperature difference control for crystallization, the system reduces the risk of clogging.
It effectively prevents blockage of vacuum pumps and distillation pipes, reduces maintenance frequency, minimizes product loss, shortens production processes, and improves work efficiency.
Smart Images
Figure CN223747004U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of maltol preparation system, concretely relates to a kind of maltol efficient sublimation system. BACKGROUND
[0002] Maltol production process is mainly divided into Grignard process, chlorination process, sublimation process, crystallization process and drying and packaging process;Among them, sublimation process is a physical process, sublimation process is sequentially arranged sublimation kettle, first receiving kettle, second receiving kettle, third receiving kettle, sublimation kettle is heated to make kettle temperature reach 170 DEG C above, crude crystalline material starts to boil, under the action of vacuum, maltol vapor in sublimation kettle is brought into first receiving kettle, under the action of jacket circulating water in first receiving kettle, maltol vapor is cooled and is absorbed and settled crystallization in first receiving kettle cooling water;When first receiving kettle cannot well receive absorbed material, material can be brought into second receiving kettle under vacuum, sequentially, three-stage absorption mode, 4-5 hours sublimation end of distillation, but, in the above sublimation process, because of low heat exchange efficiency, large energy consumption, a large amount of maltol material is taken away by vacuum, enters vacuum system, and out of distillation pipeline is blocked, and material is easily brought into vacuum pump, causes vacuum pump and out of distillation pipeline to be blocked. SUMMARY
[0003] Therefore, the utility model provides a kind of maltol efficient sublimation system not easy to block vacuum pump and out of distillation pipeline.
[0004] A kind of maltol efficient sublimation system, including sublimation unit, the sublimation unit includes sublimation kettle, first out of distillation pipeline, first receiving kettle, second out of distillation pipeline, second receiving kettle, vacuum pump, anti-blocking assembly, the anti-blocking assembly includes soft water storage tank, spraying part, the spraying part is located at the top of the first receiving kettle, the outlet of the sublimation kettle is connected with the inlet of first out of distillation pipeline, the outlet of first out of distillation pipeline is connected with the material inlet of the first receiving kettle, the inlet of the spraying part is connected with the soft water storage tank, the outlet of the spraying part sprays into first receiving kettle, the outlet of the first receiving kettle is connected with the inlet of second out of distillation pipeline, the outlet of second out of distillation pipeline is connected with the material inlet of the second receiving kettle, the soft water inlet of the second receiving kettle is connected with the soft water storage tank, the vacuum pump is connected with the second receiving kettle, to first receiving kettle, second receiving kettle vacuum extraction.
[0005] Preferably, the anti-blocking assembly further includes anti-blocking circulating pump, the inlet of the anti-blocking circulating pump is connected with the bottom outlet of the second receiving kettle, and the outlet of the anti-blocking circulating pump is connected with the outlet of the second out of distillation pipeline.
[0006] Preferably, a first valve is arranged on the pipeline connecting the soft water storage tank with the inlet of the spraying part, and a second valve is arranged on the pipeline connecting the soft water storage tank with the soft water inlet of the second receiving kettle.
[0007] Preferably, the sublimation unit further comprises a maltol centrifuge, the maltol high-efficiency sublimation system further comprises a neutralization unit, the inlet of the maltol centrifuge is connected with the bottom outlet of the first receiving kettle, the inlet of the maltol centrifuge is also connected with the bottom outlet of the second receiving kettle, the outlet of the maltol centrifuge is connected with the inlet of the neutralization unit, and the outlet of the neutralization unit is connected with the material inlet of the sublimation kettle.
[0008] Preferably, the neutralization unit comprises a recycling pump and a neutralization kettle, the inlet of the recycling pump is connected with the outlet of the maltol centrifuge, and the outlet of the recycling pump is connected with the recycling inlet of the neutralization kettle.
[0009] Preferably, the neutralization unit further comprises a hydrolysis product conveying pipe and a separation part, the top of the neutralization kettle is provided with a sodium bicarbonate powder inlet, the hydrolysis product conveying pipe is connected with the material inlet of the neutralization kettle, the bottom outlet of the neutralization kettle is connected with the inlet of the separation part, and the outlet of the separation part is connected with the material inlet of the sublimation kettle.
[0010] Preferably, the separation part is a crude product centrifuge, the inlet of the crude product centrifuge is connected with the bottom outlet of the neutralization kettle, and the outlet of the crude product centrifuge is connected with the material inlet of the sublimation kettle.
[0011] Preferably, the bottom outlet of the neutralization kettle is connected with the material inlet of the sublimation kettle, and the separation part is a sedimentation tank, the bottom outlet of the neutralization kettle is connected with the inlet of the sedimentation tank.
[0012] Preferably, the material outlet of the sedimentation tank is also connected with the material inlet of the sublimation kettle.
[0013] Preferably, a third valve is arranged on the pipeline connecting the bottom outlet of the neutralization kettle with the material inlet of the sublimation kettle, and a fourth valve is arranged on the pipeline connecting the bottom outlet of the neutralization kettle with the inlet of the sedimentation tank.
[0014] Compared with the prior art, the utility model has the beneficial effects that:
[0015] The utility model maltol high -efficient sublimate system, including sublimation unit, the sublimation unit includes sublimation cauldron, first distillation pipeline, first receiving cauldron, second distillation pipeline, second receiving cauldron, vacuum pump, anti -blocking subassembly, the anti -blocking subassembly includes soft water storage tank, sprays, the sprays are located the top of first receiving cauldron, the outlet of sublimation cauldron is connected with the entrance of first distillation pipeline, the outlet of first distillation pipeline is connected with the material inlet of first receiving cauldron, the entrance of sprays is connected with soft water storage tank, the outlet of sprays sprays to first receiving cauldron, the outlet of first receiving cauldron is connected with the entrance of second distillation pipeline, the outlet of second distillation pipeline is connected with the material inlet of second receiving cauldron, the soft water inlet of second receiving cauldron is connected with soft water storage tank, the vacuum pump is connected with second receiving cauldron to first receiving cauldron, second receiving cauldron vacuumizing, in the sublimation process, the vacuum pump will first receiving cauldron, second receiving cauldron vacuumizing, and the material in sublimation cauldron is extracted to first receiving cauldron through first distillation pipeline, and sprays continuously sprays soft water, and the contact area of powder material and soft water increases, and the contact probability increases, so that the powder material in vacuum state is dissolved in water as much as possible, reduces the probability that powder material is extracted to second distillation pipeline, second receiving cauldron and vacuum pump, prevents second distillation pipeline, vacuum pump from being blocked, reduces the frequency of repair, and reduces the loss of product, reduces the use of receiving cauldron equipment, shortens production flow, improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the block diagram of maltol high -efficient sublimate system.
[0017] Figure 2 It is the front view of sprays.
[0018] Figure 3 It is the section view of sprays.
[0019] Figure 4 It is the process flow diagram of methyl maltol high -efficient sublimate system.
[0020] Figure 5 It is the process flow diagram of ethyl maltol high -efficient sublimate system.
[0021] In the figure: maltol high-efficiency sublimation system 10, sublimation unit 100, sublimation kettle 110, first distillation outlet pipeline 120, first receiving kettle 130, brine jacket 131, second distillation outlet pipeline 140, second receiving kettle 150, circulating water jacket 151, vacuum pump 160, anti-blocking assembly 170, soft water storage tank 171, first valve 1711, second valve 1712, spraying part 172, rotating part 1721, spray head 17211, bearing 17212, connecting part 1722, connecting pipe 17221, spring 17222, sealing ring 17223, annular groove 17224, anti-blocking circulating pump 180, maltol centrifuge 190, neutralization unit 200, reuse pump 210, neutralization kettle 220, third valve 221, fourth valve 222, sodium bicarbonate powder inlet 223, hydrolysis product conveying pipe 230, separation part 240, crude product centrifuge 241, sedimentation tank 242. DETAILED DESCRIPTION
[0022] The technical scheme and technical effects of the embodiments of the present application are further described in detail below in combination with the drawings of the present application.
[0023] Please refer to Figure 1 、 Figure 4 、 Figure 5 , a maltol high-efficiency sublimation system 10, comprising a sublimation unit 100, the sublimation unit 100 comprising a sublimation kettle 110, a first distillation outlet pipeline 120, a first receiving kettle 130, a second distillation outlet pipeline 140, a second receiving kettle 150, a vacuum pump 160, an anti-blocking assembly 170, the anti-blocking assembly 170 comprising a soft water storage tank 171, a spraying part 172, the spraying part 172 being located at the top of the first receiving kettle 130, the outlet of the sublimation kettle 110 being connected with the inlet of the first distillation outlet pipeline 120, the outlet of the first distillation outlet pipeline 120 being connected with the material inlet of the first receiving kettle 130, the inlet of the spraying part 172 being connected with the soft water storage tank 171, the outlet of the spraying part 172 spraying into the first receiving kettle 130, the outlet of the first receiving kettle 130 being connected with the inlet of the second distillation outlet pipeline 140, the outlet of the second distillation outlet pipeline 140 being connected with the material inlet of the second receiving kettle 150, the soft water inlet of the second receiving kettle 150 being connected with the soft water storage tank 171, the vacuum pump 160 being connected with the second receiving kettle to vacuumize the first receiving kettle 130 and the second receiving kettle 150.
[0024] Compared with the prior art, the present application has the following beneficial effects:
[0025] The utility model maltol high -efficient sublimate system 10, including sublimation unit 100, sublimation unit 100 includes sublimation kettle 110, first distillation pipeline 120, first receiving kettle 130, second distillation pipeline 140, second receiving kettle 150, vacuum pump 160, anti -blocking subassembly 170, anti -blocking subassembly 170 includes soft water storage tank 171, sprays 172, sprays 172 are located the top of first receiving kettle 130, the export of sublimation kettle 110 is connected with the import of first distillation pipeline 120, the export of first distillation pipeline 120 is connected with the material import of first receiving kettle 130, the import of sprays 172 is connected with soft water storage tank 171, the export of sprays 172 sprays to first receiving kettle 130, the export of first receiving kettle 130 is connected with the import of second distillation pipeline 140, the export of second distillation pipeline 140 is connected with the material import of second receiving kettle 150, the soft water import of second receiving kettle 150 is connected with soft water storage tank 171, vacuum pump 160 is connected with second receiving kettle, to the vacuum of first receiving kettle 130, second receiving kettle 150 draws, in the sublimation process, vacuum pump 160 will first receiving kettle 130, second receiving kettle 150 draw vacuum, and the material of sublimation kettle 110 sublimation is drawn to first receiving kettle 130 in first distillation pipeline 120, sprays 172 continuously sprays soft water, and the contact area of powder material and soft water increases, and the contact probability increases, to make the powder material in vacuum state as possible all dissolve in water, reduce the probability that powder material is drawn to second distillation pipeline 140, second receiving kettle 150 and vacuum pump 160, prevent second distillation pipeline 140, vacuum pump 160 from being blocked, reduce the frequency of repair, and reduce the loss of product, reduce the use of receiving kettle equipment, shorten the production flow, improve work efficiency.
[0026] Further, the first receiving kettle 130 is provided with a salt water jacket 131, -5-1℃ salt water is circulated and injected in the salt water jacket 131, the soft water storage tank 171 is filled with 5-10℃ soft water, the second receiving kettle 150 is provided with a circulating water jacket 151, ≤25℃ cooling circulating water is circulated and injected in the circulating water jacket 151, and the second receiving kettle 150 is filled with the soft water from the soft water storage tank 171; the temperature in the first receiving kettle 130 is controlled by the salt water in the salt water jacket 131, then the continuously sprayed soft water in the spraying part 172 uniformly absorbs the powder-like material drawn out from the sublimation kettle 110, so that the powder-like material is quickly crystallized after being cooled, the temperature in the second receiving kettle 150 is higher than that in the first receiving kettle 130, the powder-like material is crystallized in the first receiving kettle 130 as much as possible by using the temperature difference, the probability of the powder-like material entering the second receiving kettle 150 is reduced, the probability of the powder-like material being drawn into the second distillation pipeline 140, the second receiving kettle 150 and the vacuum pump 160 is reduced, the second distillation pipeline 140 and the vacuum pump 160 are prevented from being blocked, the frequency of maintenance is reduced, and the loss of product is reduced.
[0027] Further, the anti-blocking assembly 170 further comprises an anti-blocking circulating pump 180, the inlet of the anti-blocking circulating pump 180 is connected with the bottom outlet of the second receiving kettle 150, and the outlet of the anti-blocking circulating pump 180 is connected with the outlet of the second distillation pipeline 140; when the product is methyl maltol, the melting point of methyl maltol is high, and methyl maltol is easily crystallized at the outlet of the second distillation pipeline 140 after being cooled when passing through the second distillation pipeline 140 from the high temperature of the first receiving kettle 130; the anti-blocking circulating pump 180 is added, the soft water in the second receiving kettle 150 is circulated to flush the outlet of the second distillation pipeline 140, the product is prevented from blocking the pipeline, the product material is completely collected in the soft water in the second receiving kettle 150, and the material drawn into the second distillation pipeline 140 is directly taken into the second receiving kettle 150 by the soft water, so that the material is prevented from being drawn into the vacuum pump 160 and causing the vacuum pump 160 to be blocked.
[0028] Further, a first valve 1711 is arranged on the pipeline connecting the soft water storage tank 171 with the inlet of the spraying part 172 to control the flow rate of the soft water, and a second valve 1712 is arranged on the pipeline connecting the soft water storage tank 171 with the soft water inlet of the second receiving kettle 150 to inject the soft water into the second receiving kettle 150.
[0029] Please refer to Figure 2 and Figure 3 Further, the spraying part 172 is a shower head, and the inlet of the shower head is connected with the outlet of the soft water storage tank 171.
[0030] Further, the spraying part 172 comprises a rotating part 1721 and a connecting part 1722, the rotating part 1721 comprises a nozzle 17211 and a bearing 17212, the connecting part 1722 comprises a connecting pipe 17221, a spring 17222 and a sealing ring 17223, the inner wall of the connecting pipe 17221 is provided with an annular groove 17224, the bearing 17212 is located in the connecting pipe 17221, the spring 17222 is located in the annular groove 17224, one end of the spring 17222 is connected with the annular groove 17224, the other end of the spring 17222 is connected with the sealing ring 17223 through a mounting bracket and a screw, the sealing ring 17223 is located at the lower part of the bearing 17212, the bottom end of the pipeline connecting the soft water storage tank 171 with the inlet of the spraying part 172 is located in the bearing 17212, the pipeline connecting the soft water storage tank 171 with the inlet of the spraying part 172 is welded with the cover of the first receiving kettle 130, the nozzle 17211 can rotate relative to the pipeline connecting the soft water storage tank 171 with the inlet of the spraying part 172, and the nozzle 17211 can rotate to make the water atomization effect better, so as to increase the contact area of the water mist and the sublimated powder particles.
[0031] Further, the sealing ring 17223 is made of rubber, and the sealing ring 17223 can enter the annular groove 17224.
[0032] Further, the sublimation unit 100 further comprises a maltol centrifuge 190, the maltol high-efficiency sublimation system 10 further comprises a neutralization unit 200, the maltol centrifuge 190, the inlet of the maltol centrifuge 190 is connected with the bottom outlet of the first receiving kettle 130, the inlet of the maltol centrifuge 190 is also connected with the bottom outlet of the second receiving kettle 150, the outlet of the maltol centrifuge 190 is connected with the inlet of the neutralization unit 200, and the outlet of the neutralization unit 200 is connected with the material inlet of the sublimation kettle 110, so as to centrifuge the product material crystallized in the first receiving kettle 130 and the second receiving kettle 150 to obtain the product, the mother liquor after centrifugation is transported to the neutralization unit 200 for recycling, reducing the waste of the product, and without further extraction, new raw materials are not introduced, reducing the cost, reducing the difficulty and cost of sewage treatment.
[0033] Further, the neutralization unit 200 comprises a recycling pump 210 and a neutralization kettle 220, the inlet of the recycling pump 210 is connected with the outlet of the maltol centrifuge 190, and the outlet of the recycling pump 210 is connected with the recycling inlet of the neutralization kettle 220.
[0034] Further, the neutralization unit 200 further comprises a hydrolysis product delivery pipe 230, a separation unit 240, a sodium bicarbonate powder inlet 223 is arranged at the top of the neutralization kettle 220, the hydrolysis product delivery pipe 230 is connected with the material inlet of the neutralization kettle 220, the bottom outlet of the neutralization kettle 220 is connected with the inlet of the separation unit 240, and the outlet of the separation unit 240 is connected with the material inlet of the sublimation kettle 110. When the hydrolysis material is neutralized, the sodium bicarbonate powder is used as a neutralizing agent. The neutralizing agent itself has little liquid, so that the neutralization mother liquor water is little, and the probability of bringing the product into the neutralization mother liquor water is reduced. On the other hand, the sodium bicarbonate powder is used as a neutralizing agent, and the sublimation mother liquor water is reused in the neutralization reaction process, the waste of the product is reduced, the sublimation mother liquor water dilutes the sodium bicarbonate, the neutralization reaction pH is moderate, the neutralization reaction is more complete, the sublimation mother liquor water does not need to be extracted by chloroform, the raw material cost is reduced, and the sewage treatment cost and difficulty are not increased.
[0035] Please refer to Figure 4 Further, the separation unit 240 is a crude product centrifuge 241, the inlet of the crude product centrifuge 241 is connected with the bottom outlet of the neutralization kettle 220, and the outlet of the crude product centrifuge 241 is connected with the material inlet of the sublimation kettle 110. When the methyl maltol is prepared, the material is centrifuged and dried by the crude product centrifuge 241, then washed by ethanol, and then centrifuged and dried again to obtain the methyl maltol crude product, which is then delivered to the sublimation kettle 110 for sublimation and purification.
[0036] Please refer to Figure 5 Further, the bottom outlet of the neutralization kettle 220 is connected with the material inlet of the sublimation kettle 110, and the separation unit 240 is a sedimentation tank 242. The bottom outlet of the neutralization kettle 220 is connected with the inlet of the sedimentation tank 242. When the ethyl maltol is prepared, the neutralization material in the neutralization kettle 220 is allowed to stand and stratify. The neutralization material is an oil phase, the water phase is delivered to the sedimentation tank 242 for precipitation, and the oil phase is delivered to the sublimation kettle 110 for sublimation and purification.
[0037] Further, the material outlet of the sedimentation tank 242 is also connected with the material inlet of the sublimation kettle 110. After a long time of accumulation, the material in the water phase is continuously recovered, the supernatant of the sedimentation tank 242 is discharged into a sewage treatment system for sewage treatment, and the crystalline body at the bottom of the sedimentation tank 242 is delivered to the sublimation kettle 110 for sublimation and purification, so as to reduce the waste.
[0038] Further, a third valve 221 is arranged on the pipeline connecting the bottom outlet of the neutralization kettle 220 with the material inlet of the sublimation kettle 110, and a fourth valve 222 is arranged on the pipeline connecting the bottom outlet of the neutralization kettle 220 with the inlet of the sedimentation tank 242.
[0039] The above only discloses preferred embodiments of the present application, and of course cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present application still belong to the scope covered by the present application.
Claims
1. A high-efficiency sublimation system for maltol, characterized by, The sublimation unit comprises a sublimation kettle, a first distillation outlet pipeline, a first receiving kettle, a second distillation outlet pipeline, a second receiving kettle, a vacuum pump, and an anti-blocking assembly, wherein the anti-blocking assembly comprises a soft water storage tank and a spraying part located at the top of the first receiving kettle; the outlet of the sublimation kettle is connected with the inlet of the first distillation outlet pipeline; the outlet of the first distillation outlet pipeline is connected with the material inlet of the first receiving kettle; the inlet of the spraying part is connected with the soft water storage tank; the outlet of the spraying part sprays into the first receiving kettle; the outlet of the first receiving kettle is connected with the inlet of the second distillation outlet pipeline; the outlet of the second distillation outlet pipeline is connected with the material inlet of the second receiving kettle; the soft water inlet of the second receiving kettle is connected with the soft water storage tank; and the vacuum pump is connected with the second receiving kettle to vacuumize the first receiving kettle and the second receiving kettle.
2. The high efficiency sublimation system for maltol as claimed in claim 1, wherein, The anti-blocking assembly further comprises an anti-blocking circulating pump, wherein the inlet of the anti-blocking circulating pump is connected with the bottom outlet of the second receiving kettle, and the outlet of the anti-blocking circulating pump is connected with the outlet of the second distillation outlet pipeline.
3. The high efficiency maltol sublimation system of claim 1, wherein, A first valve is arranged on the pipeline connecting the soft water storage tank with the inlet of the spraying part, and a second valve is arranged on the pipeline connecting the soft water storage tank with the soft water inlet of the second receiving kettle.
4. The high efficiency maltol sublimation system of claim 1, wherein, The sublimation unit further comprises a maltol centrifuge, and the maltol high-efficiency sublimation system further comprises a neutralization unit, the maltol centrifuge, the inlet of the maltol centrifuge is connected with the bottom outlet of the first receiving kettle, the inlet of the maltol centrifuge is also connected with the bottom outlet of the second receiving kettle, the outlet of the maltol centrifuge is connected with the inlet of the neutralization unit, and the outlet of the neutralization unit is connected with the material inlet of the sublimation kettle.
5. The high efficiency maltol sublimation system of claim 4, wherein, The neutralization unit comprises a recycling pump and a neutralization kettle, wherein the inlet of the recycling pump is connected with the outlet of the maltol centrifuge, and the outlet of the recycling pump is connected with the recycling inlet of the neutralization kettle.
6. The high efficiency maltol sublimation system of claim 5, wherein, The neutralization unit further comprises a hydrolysis product conveying pipeline and a separation part, the top of the neutralization kettle is provided with a sodium bicarbonate powder inlet, the hydrolysis product conveying pipeline is connected with the material inlet of the neutralization kettle, the bottom outlet of the neutralization kettle is connected with the inlet of the separation part, and the outlet of the separation part is connected with the material inlet of the sublimation kettle.
7. The high efficiency maltol sublimation system of claim 6, wherein, The separation part is a crude product centrifuge, the inlet of the crude product centrifuge is connected with the bottom outlet of the neutralization kettle, and the outlet of the crude product centrifuge is connected with the material inlet of the sublimation kettle.
8. The high efficiency maltol sublimation system of claim 6, wherein, The bottom outlet of the neutralization kettle is connected with the material inlet of the sublimation kettle, and the separation part is a sedimentation tank, the bottom outlet of the neutralization kettle is connected with the inlet of the sedimentation tank.
9. The high efficiency maltol sublimation system of claim 8, wherein, The material outlet of the sedimentation tank is also connected with the material inlet of the sublimation kettle.
10. The high efficiency maltol sublimation system of claim 8, wherein, A third valve is arranged on the pipeline connecting the bottom outlet of the neutralization kettle with the material inlet of the sublimation kettle, and a fourth valve is arranged on the pipeline connecting the bottom outlet of the neutralization kettle with the inlet of the sedimentation tank.