Continuous monosodium glutamate evaporative crystallization device and evaporative crystallization process thereof

Abstract

The continuous evaporation crystallization device comprises an evaporation tank, the top wall of the evaporation tank is fixedly connected with a tank cover, the inner wall of the tank cover is fixedly connected with a flow dividing disc, the outer wall of the flow dividing disc is fixedly connected with a steam collecting disc, and the inner wall of the evaporation tank is fixedly connected with a steam disc. Bottom steam conveying integrated pipes which are symmetrically distributed are fixedly connected to the outer wall of the steam disc, the extending evaporation assembly comprises flow dividing pipes which are evenly and fixedly connected to the outer wall of the flow dividing disc, and flow guiding cones are fixedly connected to the top walls of the flow dividing pipes. According to the invention, through the spiral structural design of the spiral pipe A and the spiral pipe B, the flow path length of a solution in the evaporation process is greatly increased, so that the contact area of the solution and hot steam in the steam pipe is greatly increased, the contact time is remarkably prolonged, and the solution can absorb more heat within the same time; therefore, the evaporation is more sufficient.

Description

Technical Field

[0001] The invention relates to the technical field of monosodium glutamate continuous evaporation, in particular to a monosodium glutamate continuous evaporation crystallization device and an evaporation crystallization process thereof. Background Art

[0002] MSG, chemically known as monosodium glutamate, is a commonly used flavor enhancer and is widely used in the food industry. With the continuous development of the food industry, the demand for MSG continues to grow, which puts higher requirements on the production technology and production efficiency of MSG. In the production process of MSG, crystallization is a key link, the purpose of which is to separate monosodium glutamate from the solution to obtain high-purity MSG crystals. Traditional MSG crystallization technology mainly adopts multi-effect evaporation crystallization or single-effect evaporation crystallization. Although multi-effect evaporation crystallization has improved the utilization rate of steam to a certain extent, the equipment investment is large, the process is complicated, and the operation and maintenance are difficult. Single-effect evaporation crystallization has high energy consumption. Every 1 ton of water evaporated consumes 1.1 tons of steam. Taking the production of 1 ton of MSG as an example, the evaporation and crystallization link alone consumes 3.1 tons of steam, which not only increases the production cost, but also puts great pressure on the environment, because a large amount of steam consumption means more energy consumption and greenhouse gas emissions.

[0003] MVR technology has significant energy-saving advantages. Compared with traditional single-effect evaporation crystallization, it can save 80% of energy consumption and 90% of cooling water, which can greatly reduce the production cost for large-scale production products such as monosodium glutamate. At the same time, MVR technology can accurately control the temperature during the crystallization process, so that the temperature of the crystallized material can be stabilized at ≤65℃, effectively controlling the formation probability of pyroglutamic acid caused by high temperature, and improving the yield and product quality of monosodium glutamate.

[0004] However, the MSG evaporation and crystallization devices currently on the market that use MVR technology still have room for improvement in the evaporator part: 1. The evaporation efficiency is low. The evaporation structure design of many devices is unreasonable, the contact area between the solution and the steam is small, and the contact time is short, resulting in the solution being unable to fully absorb the heat of the steam for evaporation, making the evaporation process slow and the production efficiency low, making it difficult to meet the growing market demand; 2. The solution loss problem is relatively serious. In some devices, the solution flows too fast during the evaporation process, and does not have enough time for sufficient heat exchange with the steam before flowing out of the device, resulting in a waste of raw materials, increased production costs, and also reduced product yields; 3. Traditional evaporators require the infusion of a large amount of steam, which cannot be fully utilized and consumes a lot of energy, resulting in high costs.

[0005] Therefore, a monosodium glutamate continuous evaporation crystallization device is urgently needed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a MSG continuous evaporation crystallization device and an evaporation crystallization process thereof, which can improve the energy utilization efficiency, stability and user experience of the energy storage system through precise operation strategies and perfect control functions, and meet the stringent requirements of modern energy management.

[0007] The object of the present invention is to provide a monosodium glutamate continuous evaporation crystallization device to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: A monosodium glutamate continuous evaporation crystallization device comprises an evaporation tank, the top wall of the evaporation tank is fixedly connected to a tank cover, the inner wall of the tank cover is fixedly connected to a diverter plate, the outer wall of the diverter plate is fixedly connected to a steam collecting plate, the inner wall of the evaporation tank is fixedly connected to a steam plate, the outer wall of the steam plate is fixedly connected to a symmetrically distributed bottom steam transmission integrated pipe, and further comprises: An extended evaporation component, the extended evaporation component comprises a shunt pipe uniformly fixedly connected to the outer wall of the shunt plate, the top wall of the shunt pipe is fixedly connected to a guide cone, the outer wall of the shunt pipe is fixedly connected to a spiral tube A, the end of the spiral tube A away from the shunt pipe is fixedly connected to a choke tube, and the end of the choke tube away from the spiral tube A is fixedly connected to a spiral tube B; The high-efficiency evaporation loss prevention component is arranged on the top wall of the steam tray.

[0009] Preferably, the high-efficiency evaporation loss prevention component includes a steam pipe evenly and fixedly connected to the top wall of the steam tray, and the steam pipe is fixedly connected to the steam collecting tray, the upper part of the steam pipe is larger than the lower part, and the spiral tube A, spiral tube B and the choke tube are located inside the steam pipe.

[0010] Preferably, a collecting bin is provided between the evaporating tank and the steam pan, a separation tube is fixedly connected to the outer wall of the collecting bin, and a separation plate is fixedly connected to the inner wall of the separation tube.

[0011] Preferably, the end of the separation tube away from the collecting bin is fixedly connected to a separation tank, the outer wall of the separation tank is fixedly connected to evenly distributed mounting columns B, the top wall of the separation tank is fixedly connected to a steam inlet pipe, the end of the steam inlet pipe away from the separation tank is fixedly connected to the air inlet of the compressor connected through a support body, and the air outlet of the compressor is fixedly connected to a steam outlet pipe.

[0012] Preferably, the outer wall of the steam collecting plate is fixedly connected with a symmetrically distributed top steam transmission integrated pipe, and the outer walls of the top steam transmission integrated pipe and the bottom steam transmission integrated pipe are both fixedly connected with connecting pipes, the connecting pipe at the top is fixedly connected to the steam outlet pipe, and the connecting pipe at the bottom is fixedly connected to the steam transmission pipe.

[0013] Preferably, the outer wall of the evaporation tank is fixedly connected with symmetrically distributed mounting columns A.

[0014] Preferably, evenly distributed choke blocks are fixedly connected to the inner wall of the choke tube.

[0015] Preferably, the outer wall of the tank cover and the top wall of the diverter plate are both fixedly connected with a feed pipe.

[0016] Preferably, the size of the spiral tube A is larger than that of the spiral tube B.

[0017] A crystallization process for monosodium glutamate evaporation crystallization, the specific steps are as follows: Compared with the prior art, the present invention has the following beneficial effects: The spiral structure design of the spiral tube A and the spiral tube B provided in the present invention greatly increases the flow path length of the solution during the evaporation process, greatly improves the contact area between the solution and the hot steam in the steam tube, and significantly prolongs the contact time. In the same time, the solution can absorb more heat, thereby evaporating more fully. At the same time, the special structure in which the upper part size of the steam tube is larger than the lower part size in the high-efficiency evaporation anti-loss component optimizes the flow state of the steam in the tube. When the steam flows from bottom to top, the flow rate and pressure of the steam change due to the change in the tube diameter, which makes the heat exchange between the steam and the solution more sufficient and efficient, and effectively promotes the evaporation process of the solution. The evaporation efficiency of the device is significantly improved as a whole, and the problems of low evaporation efficiency in the prior art, unreasonable evaporation structure design of many devices, small contact area between the solution and the steam, and short contact time, which result in the solution being unable to fully absorb the heat of the steam for evaporation, slowing the evaporation process, low production efficiency, and difficulty in meeting the growing market demand are solved.

[0018] The present invention can effectively hinder the flow of the solution and reduce the flow rate of the solution in the choke tube by setting the choke block on the inner wall of the choke tube, so that the solution can have more time to exchange heat with the surrounding steam when passing through the choke tube. The spiral tube A and the spiral tube B with a spiral structure can reduce the flow rate of the solution, avoiding the solution from flowing out of the device without fully absorbing heat for evaporation due to too fast flow rate, thereby reducing the waste of raw materials and solving the problem of more serious solution loss in the prior art. In some devices, the solution has too fast flow rate during evaporation and does not have enough time to fully exchange heat with the steam and flows out of the device, resulting in waste of raw materials, increasing production costs, and also reducing the yield of the product.

[0019] The present invention provides a corresponding steam pipe for each set of spiral tubes A and spiral tubes B, and the size of the steam pipe changes with the size of the spiral tubes A and spiral tubes B, thereby avoiding the situation in which a large amount of steam is injected into the evaporation tank, resulting in excess steam in some areas and insufficient steam in some areas. This enables the heat of the steam to be fully and effectively utilized, and each portion of steam can participate in the evaporation process of the solution to the greatest extent, thereby significantly improving the energy utilization efficiency, reducing energy consumption and production costs. At the same time, the steam pipe of an adapted size can tightly wrap the steam around the spiral tube, so that the heat is more concentratedly transferred to the solution, improving the efficiency of heat transfer, further saving energy, and solving the problem in the prior art that the traditional evaporator needs to inject a large amount of steam, which cannot be fully utilized and consumes a large amount of energy, resulting in high costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the overall structural schematic diagrams of the MSG continuous evaporation crystallization device of the present invention.

[0021] Figure 2 This is the second overall structural schematic diagram of the MSG continuous evaporation crystallization device of the present invention.

[0022] Figure 3 It is a cross-sectional view of the evaporation tank of the monosodium glutamate continuous evaporation crystallization device of the present invention.

[0023] Figure 4 It is a cross-sectional view of the diverter plate of the monosodium glutamate continuous evaporation crystallization device of the present invention.

[0024] Figure 5 It is a cross-sectional view of the steam pipe of the monosodium glutamate continuous evaporation crystallization device of the present invention.

[0025] Figure 6 The present invention is a schematic diagram of the structure of the choke tube portion of the monosodium glutamate continuous evaporation crystallization device.

[0026] Figure 7 This is an exploded view of the steam pipe portion of the MSG continuous evaporation crystallization device of the present invention.

[0027] Figure 8 The figure is a schematic diagram of the internal structure of the separation tube of the monosodium glutamate continuous evaporation crystallization device of the present invention.

[0028] Fig. 9 The figure is a schematic flow chart of the monosodium glutamate evaporation crystallization process of the present invention.

[0029] in: 1. Evaporator; 2. Tank cover; 3. Mounting column A; 4. Separation tube; 5. Separation tank; 6. Mounting column B; 7. Steam inlet pipe; 8. Compressor; 9. Support body; 10. Steam outlet pipe; 11. Feed pipe; 12. Diverter plate; 13. Steam collecting plate; 14. Steam plate; 15. Steam pipe; 16. Collecting bin; 17. Bottom steam integrated pipe; 18. Top steam integrated pipe; 19. Diverter pipe; 20. Guide cone; 21. Spiral tube A; 22. Choke tube; 23. Spiral tube B; 24. Choke block; 25. Connecting pipe; 26. Steam pipe; 27. Separation plate. DETAILED DESCRIPTION

[0030] In order to better understand the technical solution of the present invention, the following will be described in detail in conjunction with the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention, and are only implementations that can be adopted by the technical solution of the present invention. It should be noted that the description of the positional relationship of each component in this article, such as component A being located above component B, is based on the description of the relative positions of the components in the illustration, and is not intended to limit the actual positional relationship of the components. Example 1

[0031] like Figure 1-8 As shown, a monosodium glutamate continuous evaporation crystallization device proposed in this embodiment 1 includes an evaporation tank 1, a tank cover 2 is fixedly connected to the top wall of the evaporation tank 1, a diverter plate 12 is fixedly connected to the inner wall of the tank cover 2, a steam collecting plate 13 is fixedly connected to the outer wall of the diverter plate 12, and the steam is collected by the steam collecting plate 13 after rising, and lingers in the steam collecting plate 13 and gradually flows into the collecting bin 16, a steam plate 14 is fixedly connected to the inner wall of the evaporation tank 1, and a symmetrically distributed bottom steam transmission integrated pipe 17 is fixedly connected to the outer wall of the steam plate 14, and also includes: An extended evaporation component includes a shunt tube 19 uniformly fixedly connected to the outer wall of the shunt plate 12, a guide cone 20 fixedly connected to the top wall of the shunt tube 19, a spiral tube A21 fixedly connected to the outer wall of the shunt tube 19, an end of the spiral tube A21 away from the shunt tube 19 is fixedly connected to a choke tube 22, and an end of the choke tube 22 away from the spiral tube A21 is fixedly connected to a spiral tube B23, the dispersed solution enters the shunt tube 19, due to the guide cone 20 on the top wall of the shunt tube 19, the solution can flow into the shunt tube 19 more smoothly, and then the solution flows along the spiral tube A21 on the outer wall of the shunt tube 19, the spiral tube A21 increases the flow path of the solution and the contact area with the steam, after passing through the spiral tube A21, the solution enters the choke tube 22, the choke block 24 on the inner wall of the choke tube 22 further reduces the flow rate of the solution, so that the solution has more time to exchange heat with the steam, and finally the solution flows into the spiral tube B23 to continue evaporation; The high-efficiency evaporation loss prevention component is arranged on the top wall of the steam tray 14 .

[0032] like Figure 4-5As shown, the high-efficiency evaporation anti-loss component includes a steam pipe 15 uniformly and fixedly connected to the top wall of the steam tray 14, and the steam pipe 15 is fixedly connected to the steam collecting tray 13, the upper part of the steam pipe 15 is larger than the lower part, the spiral tube A21, the spiral tube B23 and the choke tube 22 are located inside the steam pipe 15, and the spiral tube A21, the spiral tube B23 and the choke tube 22 are located inside the steam pipe 15 to ensure that the solution is fully in contact with the steam and improve the evaporation efficiency. The steam enters from the steam pipe 26 and enters the steam tray 14 through the connecting pipe 25 and the bottom steam integrated pipe 17, and then rises through the steam pipe 15 on the top wall of the steam tray 14. The upper part of the steam pipe 15 is larger than the lower part, so that the flow rate of the steam slows down during the rising process and the contact time with the solution is increased.

[0033] like Figure 2 and Figure 8 As shown, a collecting bin 16 is provided between the evaporating tank 1 and the steam pan 14, a separation tube 4 is fixedly connected to the outer wall of the collecting bin 16, a separation plate 27 is fixedly connected to the inner wall of the separation tube 4, part of the steam and the evaporated solution flow into the collecting bin 16 through the steam pan 14, the liquid is located below the collecting bin 16, the steam hovers above the collecting bin 16, the steam flows into the separation tank 5 through the upper part of the separation tube 4 separated by the separation plate 27, and the liquid flows into the separation tank 5 through the lower part.

[0034] The separation tube 4 is fixedly connected to the separation tank 5 at one end away from the collecting bin 16, and the outer wall of the separation tank 5 is fixedly connected to the evenly distributed mounting columns B6, and the top wall of the separation tank 5 is fixedly connected to the steam inlet pipe 7, and the end of the steam inlet pipe 7 away from the separation tank 5 is fixedly connected to the air inlet of the compressor 8 connected through the support body 9, and the air outlet of the compressor 8 is fixedly connected to the steam outlet pipe 10. The separated steam passes through the steam inlet pipe 7 and is compressed by the compressor 8, and then re-enters the steam collecting plate 13 through the steam outlet pipe 10, the connecting pipe 25, and the top steam integrated pipe 18, thereby realizing the recycling of steam.

[0035] The outer wall of the steam collecting plate 13 is fixedly connected with symmetrically distributed top steam transmission integrated pipes 18, and the outer walls of the top steam transmission integrated pipe 18 and the bottom steam transmission integrated pipe 17 are fixedly connected with connecting pipes 25. The top connecting pipe 25 is fixedly connected to the steam outlet pipe 10, and the bottom connecting pipe 25 is fixedly connected to the steam transmission pipe 26.

[0036] The outer wall of the evaporation tank 1 is fixedly connected with symmetrically distributed mounting columns A3, and the evaporation tank 1 is installed, fixed and supported by the mounting columns A3.

[0037] like Figure 6 As shown, the inner wall of the choke tube 22 is fixedly connected with evenly distributed choke blocks 24 , and the choke blocks 24 on the inner wall of the choke tube 22 further reduce the flow rate of the solution, so that the solution has more time to exchange heat with the steam.

[0038] like Figure 1 As shown, the outer wall of the tank cover 2 and the top wall of the diverter plate 12 are fixedly connected with a feed pipe 11. The MSG solution enters the device through the feed pipe 11 on the outer wall of the tank cover 2 and the top wall of the diverter plate 12. The entering solution first reaches the diverter plate 12 and is preliminarily dispersed by the diverter plate 12.

[0039] like Figure 5 As shown, the size of the spiral tube A21 is larger than that of the spiral tube B23. Due to the larger size of the spiral tube A21, the flow rate of the solution therein is relatively slow, which prolongs the heat exchange time between the solution and the steam, and the solution has more time to absorb the heat of the steam, thereby improving the evaporation effect. When the solution enters the smaller spiral tube B23, since a certain degree of evaporation has been carried out in the spiral tube A21 before, the properties of the solution have changed. At this time, a relatively fast flow rate can also ensure that it is fully in contact with the steam and completes further evaporation. The flow rate of the solution is controlled to ensure that the solution has sufficient heat exchange time with the steam during the entire evaporation process, thereby improving the heat utilization efficiency.

[0040] Working principle: When the monosodium glutamate continuous evaporation crystallization device of the present invention is in use: the monosodium glutamate solution enters the device through the feed pipe 11 on the outer wall of the tank cover 2 and the top wall of the diverter plate 12, the entered solution first reaches the diverter plate 12, and is preliminarily dispersed by the diverter plate 12; the dispersed solution enters the diverter pipe 19, due to the guide cone 20 on the top wall of the diverter pipe 19, the solution can flow into the diverter pipe 19 more smoothly, and then the solution flows along the spiral tube A21 on the outer wall of the diverter pipe 19, the spiral tube A21 increases the flow path of the solution and the contact area with the steam, after passing through the spiral tube A21, the solution enters the choke tube 22, the choke block 24 on the inner wall of the choke tube 22 further reduces the flow rate of the solution, so that the solution has more time to exchange heat with the steam, and finally the solution flows into the spiral tube B23 to continue evaporation; at the same time, the steam enters from the steam transmission pipe 26, and enters the steam disk 14 through the connecting pipe 25 and the bottom steam transmission integrated pipe 17, and then passes through the steam disk 14 The steam pipe 15 on the top wall rises, and the upper part of the steam pipe 15 is larger than the lower part, so that the flow rate of steam slows down during the rising process and the contact time with the solution increases. At the same time, the spiral tube A21, the spiral tube B23 and the choke tube 22 are located inside the steam pipe 15 to ensure that the solution and the steam are fully in contact and the evaporation efficiency is improved. After the steam rises, it is collected by the steam collecting plate 13 and hovers in the steam collecting plate 13; part of the steam and the evaporated solution flow into the collecting bin 16 through the steam disc 14, the liquid is located below the collecting bin 16, and the steam hovers above the collecting bin 16. The steam flows into the separation tank 5 through the upper part of the separation tube 4 separated by the separation plate 27, and the liquid flows into the separation tank 5 through the lower part. The separated steam passes through the steam inlet pipe 7 and is compressed by the compressor 8, and then re-enters the steam collecting plate 13 through the steam outlet pipe 10, the connecting pipe 25, and the top steam integrated pipe 18, thereby realizing the recycling of steam.

[0041] like Fig. 9 As shown, the evaporation crystallization process of a monosodium glutamate continuous evaporation crystallization device proposed in this embodiment 1 has the following specific steps: S1: First, the raw material liquid will be pressurized by the feed pump and then smoothly enter the whole system. In this process, the electromagnetic flowmeter plays a key role. It will accurately calculate the flow rate of the raw material liquid, and then transmit the obtained flow signal to the automatic control system in time. The operator can set a suitable feed flow value in the automatic control system according to the actual production needs. The automatic control system will automatically adjust the speed of the feed pump according to the received signal and the set value, so as to ensure that the feed amount is always stably maintained at the set value, and realize the precise control of the crystallization material temperature ≤65℃. Controlling the evaporation crystallization at low temperature can control the probability of pyroglutamic acid formation due to high temperature materials, improve the yield of monosodium glutamate, and reduce consumption; S2: After the feeding process, the feed flows into the plate heat exchanger. In the plate heat exchanger, the feed exchanges heat with condensed water. The condensed water contains a certain amount of heat. Through this heat exchange, the feed can absorb the heat of the condensed water, thereby raising its own temperature. After the temperature is raised, the feed smoothly enters the evaporator. In the evaporator, the spiral tube A (21), spiral tube B (23) and steam pipe (15) in the evaporation tank (1) cooperate with each other to improve the evaporation efficiency. The spiral tube A (21) and spiral tube B (23) increase the contact area between the material and the steam. The steam provided by the steam pipe (15) provides sufficient heat for the evaporation process, so that the material can evaporate quickly and efficiently in the evaporator. S3: As the evaporation process continues, the material is gradually concentrated. When a certain concentration is reached, the concentrated material will flow out of the evaporator from the separation tube (4) together with the steam. The concentrated liquid flowing out carries secondary steam, which will enter the separation tank (5). In the separation tank (5), a vapor-liquid separation operation will be performed; S4: the separated secondary steam enters the steam compressor (8), and the steam compressor (8) performs a pressurization process on the secondary steam. After the pressurization, the pressure and temperature of the secondary steam are increased, and the secondary steam becomes heating steam. The heating steam enters the system again and participates in the cycle evaporation process to continuously provide heat for the evaporation of the material, thereby realizing the recycling of steam and improving the energy utilization rate. S5: During the operation of the steam compressor (8), a certain amount of condensed water will be generated. This condensed water will be sent to the inlet pipeline of the condensate pump through the steam trap, and then discharged from the system together with the condensed water to ensure the moisture balance in the system and the normal operation of the equipment.

[0042] The above are only specific application examples of the present invention and do not constitute any limitation on the protection scope of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A monosodium glutamate continuous evaporation crystallization device, comprising an evaporation tank (1), characterized in that: The top wall of the evaporator (1) is fixedly connected to a tank cover (2), the inner wall of the tank cover (2) is fixedly connected to a diverter plate (12), the outer wall of the diverter plate (12) is fixedly connected to a steam collecting plate (13), the inner wall of the evaporator (1) is fixedly connected to a steam plate (14), and the outer wall of the steam plate (14) is fixedly connected to symmetrically distributed bottom steam transmission integrated pipes (17), and further comprises: An extended evaporation component, the extended evaporation component comprising a flow distribution pipe (19) uniformly fixedly connected to the outer wall of a flow distribution plate (12), a flow guide cone (20) fixedly connected to the top wall of the flow distribution pipe (19), a spiral tube A (21) fixedly connected to the outer wall of the flow distribution pipe (19), an end of the spiral tube A (21) away from the flow distribution pipe (19) fixedly connected to a flow blocking tube (22), and an end of the flow blocking tube (22) away from the spiral tube A (21) fixedly connected to a spiral tube B (23); A high-efficiency evaporation loss prevention component is arranged on the top wall of the steam tray (14).

2. A monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: The high-efficiency evaporation loss prevention component comprises a steam pipe (15) uniformly and fixedly connected to the top wall of a steam pan (14), and the steam pipe (15) is fixedly connected to a steam collecting pan (13), the upper portion of the steam pipe (15) is larger than the lower portion, and the spiral pipe A (21), the spiral pipe B (23) and the choke pipe (22) are located inside the steam pipe (15).

3. The monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: A collecting bin (16) is provided between the evaporating tank (1) and the steam pan (14); a separation tube (4) is fixedly connected to the outer wall of the collecting bin (16); and a separation plate (27) is fixedly connected to the inner wall of the separation tube (4).

4. A monosodium glutamate continuous evaporation crystallization device according to claim 3, characterized in that: The end of the separation pipe (4) away from the collection bin (16) is fixedly connected to the separation tank (5), the outer wall of the separation tank (5) is fixedly connected to evenly distributed mounting columns B (6), the top wall of the separation tank (5) is fixedly connected to a steam inlet pipe (7), the end of the steam inlet pipe (7) away from the separation tank (5) is fixedly connected to an air inlet of a compressor (8) connected via a support body (9), and the air outlet of the compressor (8) is fixedly connected to a steam outlet pipe (10).

5. The monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: The outer wall of the steam collecting plate (13) is fixedly connected to symmetrically distributed top steam transmission integrated pipes (18), and the outer walls of the top steam transmission integrated pipes (18) and the bottom steam transmission integrated pipes (17) are both fixedly connected to connecting pipes (25), the connecting pipes (25) located at the top are fixedly connected to the steam outlet pipe (10), and the connecting pipes (25) located at the bottom are fixedly connected to the steam transmission pipe (26).

6. The monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: The outer wall of the evaporation tank (1) is fixedly connected with symmetrically distributed mounting columns A (3).

7. The monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: The inner wall of the choke tube (22) is fixedly connected with evenly distributed choke blocks (24).

8. The monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: The outer wall of the tank cover (2) and the top wall of the diverter plate (12) are both fixedly connected with a feed pipe (11).

9. The monosodium glutamate continuous evaporation crystallization device according to claim 1, characterized in that: The size of the spiral tube A (21) is larger than that of the spiral tube B (23).

10. A monosodium glutamate evaporation crystallization process according to any one of claims 1 to 9, wherein the specific steps are as follows: S1: The raw material liquid is pressurized into the system through the feed pump, and the signal is transmitted to the automatic control system after calculation by the electromagnetic flowmeter. The speed of the feed pump is adjusted according to the flow rate set by the operator to keep the feed amount constant at the set value; S2: The feed material is heated by the plate heat exchanger and condensed water to increase the temperature of the feed material before entering the evaporator. The spiral tube A (21), spiral tube B (23) and steam pipe (15) in the evaporation tank (1) cooperate with each other to achieve efficient evaporation. S3: The solution evaporates in the evaporator, and the material is concentrated and flows out from the separation tube (4) together with the steam. The concentrated liquid carries the secondary steam and enters the separation tank (5) for vapor-liquid separation; S4: After being pressurized by the steam compressor (8), it becomes heating steam and circulates for evaporation. The condensed water generated during operation is sent to the inlet pipeline of the condensate pump through the steam trap and discharged from the system together with the condensed water.

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