Evaporative crystallization device and process for glutamic acid isoelectric mother liquor

Abstract

The invention relates to the technical field of seasoning crystallization preparation, in particular to a glutamic acid isoelectric mother liquor evaporative crystallization device and a glutamic acid isoelectric mother liquor evaporative crystallization process. The glutamic acid isoelectric mother liquor evaporative crystallization device comprises two supporting frames which are symmetrically arranged and are of T-shaped structures, and a main heating roller is jointly installed between horizontal sections of the supporting frames through bearings; the designed main heating roller can perform evaporative crystallization on glutamic acid isoelectric mother liquor smeared on the surface of the main heating roller, and in the process, the guide plate and the auxiliary heating roller are matched with each other to perform secondary evaporative crystallization treatment on the glutamic acid isoelectric mother liquor which is not evaporated and crystallized in time on the main heating roller; therefore, glutamic acid isoelectric mother liquor smeared on the main heating roller by the liquid leakage box can be fully evaporated and crystallized, and waste of the glutamic acid isoelectric mother liquor is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of seasoning crystallization preparation, and in particular to a glutamic acid isoelectric mother liquor evaporation crystallization device and process. Background Art

[0002] Seasoning, also known as condiments, refers to food ingredients that are added in small amounts to other foods to improve the taste, including salt, sugar, MSG and white vinegar.

[0003] Among them, MSG is a umami seasoning, most of which is made from corn and other raw materials. During the preparation process, the corn and other raw materials need to be fermented to extract glutamate, and finally decolorized and evaporated to obtain sodium glutamate crystals, which is MSG.

[0004] After the fermentation production is completed, there may be residual fermentation waste liquid, that is, glutamic acid and other mother liquors. Therefore, in order to reduce the possibility of environmental pollution caused by direct discharge of sewage, the residual glutamic acid and other mother liquors need to be recovered and processed. In order to improve the utilization rate of glutamic acid and other mother liquors, the glutamic acid and other mother liquors can be evaporated, crystallized and recovered. The glutamic acid obtained by evaporation and crystallization is high in purity, and the obtained glutamic acid can be used in chemical production.

[0005] For example, the patent application with publication number CN117160069A discloses a method for crystallizing edible salt production, including a thermal crystallization device and a filtering device, wherein the thermal crystallization device is located on the top of the filtering device and is connected to the filtering device, the thermal crystallization device includes a top cylinder, a vaporization component is arranged inside the top cylinder, a bottom cylinder is arranged at the bottom of the vaporization component, and a collecting component is arranged at the bottom of the bottom cylinder. The prior art pre-treats seawater by using the filtering device to remove impurities inside the seawater, and concentrates the seawater to increase the salt content of the seawater per unit volume, and slowly sprays the treated seawater on the wall of the evaporating cylinder by using a centrifugal spray component, and simultaneously thermally crystallizes the seawater on the wall of the evaporating cylinder by using a thermal crystallization device to heat and precipitate the coarse salt in the seawater, so as to solve the problem that the existing method for crystallizing edible salt production has low salt production efficiency and is difficult to screen and collect.

[0006] The above-mentioned prior art also has the following problems when evaporating and crystallizing seawater: when the above-mentioned prior art uses a centrifugal spray assembly to spray seawater on the wall of the evaporator tube, the seawater may flow downward along the wall of the evaporator tube to the bottom of the evaporator tube due to reasons such as the uncontrollable water output and the excessively fast downward flow velocity of the seawater along the wall of the evaporator tube. As a result, the seawater cannot be evaporated and crystallized in time through the wall of the evaporator tube, thereby affecting the evaporation and crystallization efficiency of the seawater.

[0007] Since seawater and glutamic acid and other mother liquors are both solutions, when evaporating and crystallizing glutamic acid and other mother liquors, it is only necessary to change the temperature of the evaporator cylinder wall to evaporate and crystallize the glutamic acid and other mother liquors. Therefore, the above problems also exist when using the above-mentioned existing technology to evaporate and crystallize glutamic acid and other mother liquors.

[0008] Therefore, the above patent application still needs to improve the method of evaporating and crystallizing glutamic acid and other electrolyte mother solutions. Summary of the invention

[0009] In order to solve the above technical problems, the present application provides a glutamic acid isoelectric mother liquor evaporation crystallization device and process, which adopts the following technical solutions: In a first aspect, a glutamic acid isoelectric mother liquid evaporation crystallization device comprises two symmetrically arranged T-shaped support frames, wherein a main heating roller is mounted between horizontal sections of the support frames via bearings.

[0010] A liquid leakage box that cooperates with and passes through the main heating roller is commonly installed on the horizontal sections of the support frame, an auxiliary heating roller is commonly installed between the vertical sections of the support frame through bearings, a guide plate is arranged between the vertical sections of the support frame and between the main heating roller and the auxiliary heating roller, and the bottom of the guide plate is in contact with the auxiliary heating roller, and a blower box that cooperates with the main heating roller is commonly installed between the horizontal sections of the support frame.

[0011] Preferably, support protrusions are installed on the horizontal sections of the support frame, and the blower box is installed on the two support protrusions. Ventilation holes that are connected to the interior of the blower box are evenly opened on the side of the blower box close to the main heating roller, and a blower assembly for blowing air into the interior of the blower box is jointly installed between the blower box and the auxiliary heating roller.

[0012] Preferably, the air blowing assembly comprises: an air cylinder, which is mounted on a side of the air blowing box away from the main heating roller via a fixing protrusion, and a linkage plate is mounted on the telescopic end of the air cylinder.

[0013] The return spring is sleeved on the telescopic section of the air cylinder, one end of the return spring is installed on the fixed section of the air cylinder, and the other end of the return spring is installed on the linkage plate.

[0014] The toggle blade is mounted on the shaft head of the auxiliary heating roller and cooperates with the linkage plate.

[0015] One end of the air inlet pipe is installed at the air outlet of the air cylinder, and the end of the air inlet pipe away from the air cylinder is connected with the bellows.

[0016] Preferably, a blocking plate cooperating with the main heating roller is installed between the horizontal sections of the support frame.

[0017] Preferably, a scraper with a U-shaped structure and an opening facing the secondary heating roller is slidably arranged on the guiding plate. The two vertical sections of the scraper are arranged on both sides of the guiding plate. Connecting blocks are installed on the vertical sections of the support frame. A bidirectional screw extending along the length direction of the main heating roller is jointly installed between the connecting blocks through bearings. A linkage frame is installed on the bidirectional screw by means of threaded connection. One end of the linkage frame far from the bidirectional screw is connected to the scraper.

[0018] Preferably, a lifting plate is slidably arranged at one end of the linkage frame far from the bidirectional screw along its height direction. One end of the lifting plate far from the linkage frame is installed on the scraper. A让位槽 (letting-through groove) is arranged at a part of any end of the guiding plate that does not contact the secondary heating roller. A support spring rod is arranged inside the letting-through groove. The top of the support spring rod is installed with a lifting block. An electromagnet one is arranged at the bottom of the lifting plate. An electromagnet two matched with the electromagnet one is arranged on the support frame close to the letting-through groove.

[0019] Preferably, support protrusions are installed on the tops of the horizontal sections of the support frame. The liquid leakage tank is installed between the two support protrusions. A moving block is slidably arranged inside the liquid leakage tank. A regulating plate for controlling the amount of glutamic acid isoelectric mother liquor leaking out of the liquid leakage tank is installed on the moving block. One side of the moving block far from the regulating plate is installed with a threaded rod through a bearing. A fixing block is installed on the top inner wall of the liquid leakage tank. And one end of the threaded rod far from the moving block is installed on the fixing block by means of threaded connection.

[0020] Preferably, support vertical plates are installed on the horizontal sections of the support frame. A rotating roller matched with the main heating roller is jointly installed on the two support vertical plates. And the shaft head of the rotating roller close to the letting-through groove penetrates through the corresponding support vertical plate and is installed with a gear one.

[0021] Wherein the shaft head of the main heating roller close to the letting-through groove penetrates through the corresponding support frame and is installed with a gear two meshing with the gear one.

[0022] Preferably, a cleaning plate matched with the secondary heating roller is jointly slidably arranged on the vertical sections of the support frame along its length direction. Linkage blades matched with the拨动叶片 (poking blades) are installed on the cleaning plate. A rectangular protrusion is arranged on any vertical section of the support frame. A telescopic spring rod is jointly installed between the rectangular protrusion and the cleaning plate.

[0023] In a second aspect, a glutamic acid isoelectric mother liquor evaporation and crystallization process, and its usage method includes the following steps: S1: Startup preparation, rotate the main heating roller and the secondary heating roller to make them rotate. At this time, blow air onto the main heating roller through the air blowing box.

[0024] S2: Liquid coating treatment, apply glutamic acid isoelectric mother liquor onto the main heating roller through the liquid leakage tank.

[0025] S3: Evaporation and crystallization, the glutamic acid and other electrolyte mother liquid in step S2 are evaporated and crystallized by the cooperation of the main heating roller, the auxiliary heating roller and the blower box.

[0026] S4: Collection and processing, the solid powders such as evaporated and crystallized smeared glutamic acid are collected and processed by the cooperation between the rotating roller and the cleaning plate.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. The main heating roller designed in the present invention can evaporate and crystallize the glutamic acid and other electrolyte mother liquids coated on its surface. In this process, the guide plate and the auxiliary heating roller cooperate with each other to perform secondary evaporation and crystallization treatment on the glutamic acid and other electrolyte mother liquids on the main heating roller that have not evaporated and crystallized in time, so that the glutamic acid and other electrolyte mother liquids coated on the main heating roller by the leakage box can be fully evaporated and crystallized, avoiding the waste of glutamic acid and other electrolyte mother liquids.

[0028] 2. The blower box designed in the present invention can blow air to the glutamic acid and other electrolyte mother liquid smeared on the main heating roller, thereby increasing the wind speed on the surface of the glutamic acid and other electrolyte mother liquid and accelerating the evaporation and crystallization rate of the glutamic acid and other electrolyte mother liquid. At the same time, the blown wind can hinder the speed at which the glutamic acid and other electrolyte mother liquid slides along the main heating roller, thereby increasing the contact time between the glutamic acid and other electrolyte mother liquid and the main heating roller and improving the evaporation and crystallization effect of the glutamic acid and other electrolyte mother liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the bellows box of the present invention.

[0031] Figure 3 It is a schematic diagram of the three-dimensional installation structure between the air blowing assembly, the main heating roller and the auxiliary heating roller of the present invention.

[0032] Figure 4 It is a schematic diagram of the three-dimensional installation structure among the auxiliary heating roller, the bidirectional screw and the linkage frame of the present invention.

[0033] Figure 5 The present invention Figure 4 A partial enlarged view of point A in the middle.

[0034] Figure 6 It is a schematic diagram of the three-dimensional installation structure among the supporting vertical plate, the rotating roller and the auxiliary heating roller of the present invention.

[0035] Figure 7 It is a schematic diagram of the three-dimensional installation structure between the cleaning plate, the linkage blades and the telescopic spring rods of the present invention.

[0036] Figure 8 It is a schematic diagram of the internal three-dimensional structure of the liquid leakage box of the present invention.

[0037] Fig. 9 The present invention is a process flow chart of evaporation and crystallization of glutamic acid isoelectric mother liquor.

[0038] Explanation of the accompanying drawings: 1. Support frame; 11. Blocking plate; 12. Support vertical plate; 13. Rotating roller; 14. Gear 1; 15. Gear 2; 2. Main heating roller; 3. Leakage box; 31. Moving block; 32. Adjusting plate; 33. Threaded rod; 34. Fixed block; 4. Auxiliary heating roller; 41. Cleaning plate; 42. Linkage blade; 43. Telescopic spring rod; 5. Guide plate; 51. Scraper; 52. Bidirectional screw; 53. Linkage frame; 531. Lifting plate; 532. Give way groove; 533. Support spring rod; 534. Lifting block; 535. Electromagnet 1; 536. Electromagnet 2; 7. Blowing box; 71. Vent; 72. Blowing assembly; 721. Air cylinder; 722. Linkage plate; 723. Return spring; 724. Moving blade; 725. Inlet pipe. DETAILED DESCRIPTION

[0039] The following is combined with Figures 1 to 9 This application is described in further detail.

[0040] The embodiment of the present application discloses an evaporation and crystallization device and process for glutamic acid and other electric mother liquids. By applying the glutamic acid and other electric mother liquids on the main heating roller, the rate of evaporation and crystallization of the glutamic acid and other electric mother liquids can be faster; the auxiliary heating roller can perform secondary evaporation and crystallization treatment on the glutamic acid and other electric mother liquids that have not evaporated and crystallized in time on the main heating roller, thereby reducing the waste of glutamic acid and other electric mother liquids and avoiding the influence of excessive glutamic acid and other electric mother liquids on their evaporation and crystallization effects.

[0041] Embodiment 1: Reference Figure 1 A glutamic acid isoelectric mother liquid evaporation crystallization device comprises two symmetrically arranged T-shaped support frames 1, and a main heating roller 2 is installed between the horizontal sections of the support frames 1 through bearings.

[0042] Reference Figure 1 as well as Figure 3 A leakage box 3 that matches with and passes through the main heating roller 2 is installed on the horizontal section of the support frame 1, an auxiliary heating roller 4 is installed between the vertical sections of the support frame 1 through a bearing, a guide plate 5 is provided between the vertical sections of the support frame 1 and between the main heating roller 2 and the auxiliary heating roller 4, and the bottom of the guide plate 5 is in contact with the auxiliary heating roller 4, and a blower box 7 that matches with the main heating roller 2 is installed between the horizontal sections of the support frame 1.

[0043] The main heating roller 2 and the auxiliary heating roller 4 are connected by belt transmission, and the rotation direction is as follows: Figure 3As shown, the pulley diameter on the main heating roller 2 is much larger than the pulley diameter on the auxiliary heating roller 4. Resistance wires are arranged inside the main heating roller 2 and the auxiliary heating roller 4. After being energized, they are used to increase the surface temperature of the main heating roller 2 and the auxiliary heating roller 4. Since the resistance wires are common knowledge, they will not be described in the following text and are not shown in the figure. The length of the leakage tank 3 is the same as that of the main heating roller 2 and the width of the bottom port is smaller than that of the top port. During specific operation, the resistance wire is energized to heat the main heating roller 2 and the auxiliary heating roller 4, and then the main heating roller 2 is driven to rotate slowly through the existing motor (not shown in the figure). During the rotation of the main heating roller 2, the auxiliary heating roller 4 is driven to rotate slowly in the same direction synchronously. At this time, glutamic acid and other electrolyte mother liquids are manually poured into the leakage tank 3 through the top port. The glutamic acid and other electrolyte mother liquids are smeared on the surface of the main heating roller 2 after passing through the bottom port of the leakage tank 3.

[0044] During the slow rotation of the main heating roller 2, glutamic acid and other electrolyte mother liquids synchronously flow downward along the main heating roller 2. It should be noted that in order to prolong the evaporation and crystallization time of glutamic acid and other electrolyte mother liquids on the surface of the main heating roller 2 and improve the evaporation and crystallization effect of glutamic acid and other electrolyte mother liquids, it is necessary to make the rotation speed of the main heating roller 2 much lower than the downward flow speed of glutamic acid and other electrolyte mother liquids along the main heating roller 2. At this time, the main heating roller 2 can perform evaporation and crystallization treatment on the glutamic acid and other electrolyte mother liquids coated on its surface. After evaporation and crystallization, the glutamic acid and other electrolyte mother liquids form glutamic acid powder and adhere to the surface of the main heating roller 2, and the evaporated water vapor is discharged into the external environment.

[0045] The above method can increase the surface area of ​​glutamic acid and other electrolyte mother liquors during evaporation and crystallization, and has the characteristic of fast evaporation and crystallization rate compared with the traditional evaporation dish evaporation and crystallization method.

[0046] During the process of glutamic acid and other electrolyte mother liquid leaking out from the leakage box 3 and smearing on the main heating roller 2, part of the glutamic acid and other electrolyte mother liquid may not be completely evaporated and crystallized on the main heating roller 2 due to reasons such as sliding down too fast on the main heating roller 2. At this time, excess glutamic acid and other electrolyte mother liquid on the main heating roller 2 falls onto the auxiliary heating roller 4 through the guide plate 5. The auxiliary heating roller 4 performs secondary evaporation and crystallization treatment on the glutamic acid and other electrolyte mother liquid on the main heating roller 2 that has not evaporated and crystallized in time, so that the glutamic acid and other electrolyte mother liquid smeared on the main heating roller 2 from the leakage box 3 can be fully evaporated and crystallized, thereby avoiding waste of glutamic acid and other electrolyte mother liquid.

[0047] Reference Figure 1 as well as Figure 2 Support protrusions are installed on the horizontal sections of the support frame 1, and the blower box 7 is installed on the two support protrusions. The blower box 7 is evenly provided with ventilation holes 71 that are connected with the interior of the main heating roller 2 on one side thereof, and a blower assembly 72 for blowing air into the blower box 7 is installed between the blower box 7 and the auxiliary heating roller 4.

[0048] Reference Figure 3The air blowing assembly 72 includes: an air cylinder 721, which is installed on the side of the air blowing box 7 away from the main heating roller 2 through a fixed protrusion, and a linkage plate 722 is installed at the telescopic end of the air cylinder 721.

[0049] The return spring 723 is sleeved on the telescopic section of the air cylinder 721 , one end of the return spring 723 is installed on the fixed section of the air cylinder 721 , and the other end of the return spring 723 is installed on the linkage plate 722 .

[0050] The moving blade 724 is installed on the shaft head of the auxiliary heating roller 4 and cooperates with the linkage plate 722.

[0051] One end of the air inlet pipe 725 is installed at the air outlet of the air cylinder 721, and the end of the air inlet pipe 725 away from the air cylinder 721 is connected to the blower box 7.

[0052] Since the pulley diameter on the main heating roller 2 is much larger than the pulley diameter on the auxiliary heating roller 4, when the main heating roller 2 rotates one circle, the auxiliary heating roller 4 can rotate multiple circles, and the vent 71 faces the main heating roller 2, that is, the wind blowing out through the vent 71 gives the main heating roller 2 an upward force, that is, the blowing wind can hinder the speed at which the glutamic acid and other electrolyte mother liquids slide down the main heating roller 2. During specific operation, the auxiliary heating roller 4 can drive the shifting blade 724 to rotate around the shaft head of the auxiliary heating roller 4 during its rotation. During the rotation of the shifting blade 724, it contacts the linkage plate 722 and drives the linkage plate 722 to move upward. During the upward movement of the linkage plate 722, the shifting blade 724 contacts the linkage plate 722 and drives the linkage plate 722 to move upward. The telescopic end of the dynamic air cylinder 721 moves upward, and at this time, the air cylinder 721 blows air into the blow box 7 through the air inlet pipe 725, and the reset spring 723 is compressed. When the moving blade 724 is separated from the linkage plate 722, the reset spring 723 is reset and drives the linkage plate 722 to reset. During the resetting process of the linkage plate 722, the telescopic end of the air cylinder 721 is reset. When the moving blade 724 contacts the linkage plate 722 again and drives the linkage plate 722 to move upward, the above-mentioned action is repeated, and the gas can be pumped into the blow box 7 reciprocatingly. The gas inside the blow box 7 is discharged to the glutamic acid and other electrolyte mother liquids on the main heating roller 2 through the vent 71.

[0053] Therefore, the wind discharged through the vent 71 can blow the glutamic acid and other electrolyte mother liquids coated on the main heating roller 2, thereby increasing the wind speed on the surface of the glutamic acid and other electrolyte mother liquids and accelerating the evaporation and crystallization rate of the glutamic acid and other electrolyte mother liquids. At the same time, the blown wind can hinder the speed at which the glutamic acid and other electrolyte mother liquids slide along the main heating roller 2, increase the contact time between the glutamic acid and other electrolyte mother liquids and the main heating roller 2, and improve the evaporation and crystallization effect of the glutamic acid and other electrolyte mother liquids.

[0054] A heating wire is also installed on the blower box 7. After being powered on, it is used to heat the air discharged from the ventilation port 71, so that the air discharged to the main heating roller 2 is hot air. Furthermore, the external heating of the isoelectric mother liquor of glutamic acid applied on the surface of the main heating roller 2 can be carried out. The internal heating of the main heating roller 2 is cooperated with each other, so that the evaporation and crystallization of the isoelectric mother liquor of glutamic acid applied on the main heating roller 2 is faster, and the evaporation and crystallization effect of the isoelectric mother liquor of glutamic acid is better.

[0055] Looking back Figure 1 Between the horizontal sections of the support frame 1, a baffle 11 cooperating with the main heating roller 2 is commonly installed.

[0056] During specific operation, when the isoelectric mother liquor of glutamic acid in the liquid leakage box 3 falls on the main heating roller 2, the baffle 11 can play a role in obstructing the excess isoelectric mother liquor of glutamic acid, so as to slow down the sliding speed of the isoelectric mother liquor of glutamic acid on the main heating roller 2. Furthermore, the evaporation and crystallization time of the isoelectric mother liquor of glutamic acid on the main heating roller 2 is increased, and the evaporation and crystallization effect of the isoelectric mother liquor of glutamic acid on the main heating roller 2 is improved.

[0057] Referring to Figure 4 and Figure 5 As the evaporation and crystallization process progresses, there may be a glutamic acid solid-liquid mixture on the guiding plate 5, which affects the smoothness of the subsequent isoelectric mother liquor of glutamic acid on the main heating roller 2 dripping onto the auxiliary heating roller 4 through the guiding plate 5. The scraper 51 with a C-shaped structure provided by the present invention can scrape the glutamic acid solid-liquid mixture on the guiding plate 5. Specifically, a scraper 51 with a C-shaped structure and an opening facing the auxiliary heating roller 4 is slidably arranged on the guiding plate 5. The two vertical sections of the scraper 51 are arranged on both sides of the guiding plate 5. Connecting blocks are installed on the vertical sections of the support frame 1, and a bidirectional screw 52 extending along the length direction of the main heating roller 2 is commonly installed between the connecting blocks through bearings. A linkage frame 53 is installed on the bidirectional screw 52 by a threaded connection method, and a section of the linkage frame 53 far from the bidirectional screw 52 is connected to the scraper 51.

[0058] The shaft head of the main heating roller 2 is connected to the bidirectional screw 52 by a belt drive method. During specific operation, when the main heating roller 2 rotates, it drives the bidirectional screw 52 to rotate through the belt drive method. When the bidirectional screw 52 rotates, it drives the linkage frame 53 to move through the threaded connection method. When the linkage frame 53 moves, it drives the scraper 51 to move. Furthermore, during the movement of the scraper 51, the side of the guiding plate 5 can be cleaned to avoid the adhesion of the glutamic acid solid-liquid mixture on the guiding plate 5 affecting the guiding effect of the guiding plate 5.

[0059] Referring to Figure 5A lifting plate 531 is provided at one end of the linkage frame 53 away from the bidirectional screw 52 for sliding along its height direction; one end of the lifting plate 531 away from the linkage frame 53 is installed on the scraper 51; a clearance groove 532 is provided at either end of the guide plate 5 and at the part not in contact with the auxiliary heating roller 4; a supporting spring rod 533 is provided inside the clearance groove 532; a lifting block 534 is installed at the top of the supporting spring rod 533; an electromagnet 1 535 is provided at the bottom of the lifting plate 531; an electromagnet 2 536 cooperating with the electromagnet 1 535 is provided on the support frame 1 near the clearance groove 532.

[0060] During specific operation, at the starting position, electromagnet 1 535 and electromagnet 2 536 are energized, and when the linkage frame 53 moves, the scraper 51 is driven to move to the other end of the bidirectional screw 52, ​​and the bidirectional screw 52 continues to rotate through the linkage frame 53 to drive the scraper 51 to reset, and when the scraper 51 moves to the give way groove 532, the electromagnet 2 536 and the electromagnet 1 535 attract each other and drive the lifting plate 531 to move downward instantly, and during the downward movement of the lifting plate 531, the lifting block 534 is driven downward by the horizontal plate of the scraper 51, and the supporting spring rod 533 is compressed. During the downward movement of the lifting plate 531, the scraper 51 also moves downward instantly, and then the scraper 51 of the scraper 51 can cause the glutamate solid-liquid mixture attached to its surface to fall downward, and the fallen glutamate solid-liquid mixture is collected and processed by the existing collection frame to avoid the accumulation of the glutamate solid-liquid mixture on the scraper 51 and affecting its subsequent cleaning effect on the guide plate 5.

[0061] When the scraper 51 moves down instantly, the power of the electromagnet 2 536 is quickly disconnected, and the electromagnet 2 536 is no longer attracted to the electromagnet 1 535. The supporting spring rod 533 is reset and drives the lifting block 534 to move up. The lifting block 534 drives the scraper 51 to reset during the upward movement, and then the scraper 51 continues to move back and forth along the guide plate 5 and scrapes the glutamate solid-liquid mixture on the surface of the guide plate 5. The clearance groove 532 is wide enough to ensure that the scraper 51 will not collide with the inner wall of the clearance groove 532 after entering the clearance groove 532.

[0062] Reference Figure 6 A support vertical plate 12 is installed on the horizontal section of the support frame 1, and a rotating roller 13 that cooperates with the main heating roller 2 is installed on the two support vertical plates 12. The shaft head of the rotating roller 13 close to the yield groove 532 passes through the corresponding support vertical plate 12 and is installed with a gear 14.

[0063] The shaft head of the main heating roller 2 close to the clearance groove 532 passes through the corresponding support frame 1 and is installed with a gear 2 15 meshing with the gear 1 14.

[0064] The diameter of gear one 14 is much smaller than that of gear two 15, so as to ensure that when the main heating roller 2 rotates one circle, the rotating roller 13 can rotate multiple circles, and the rotating roller 13 and the main heating roller 2 have opposite directions. During operation, the main heating roller 2 rotates and the rotating roller 13 is driven to rotate by the cooperation between gear two 15 and gear one 14. During the rotation of the rotating roller 13, the evaporated and crystallized glutamic acid powder on the main heating roller 2 can be polished, so that the glutamic acid powder falls off the main heating roller 2 and is collected by the existing collecting frame. It should be noted that the rotating roller 13 and the main heating roller 2 have opposite directions, and thus during the polishing process, a force opposite to that of the main heating roller 2 can be applied to the glutamic acid powder attached to the main heating roller 2, so that the polishing effect of the glutamic acid powder is better, and the glutamic acid powder is prevented from being attached to the main heating roller 2, resulting in the thickening of the glutamic acid powder layer, which may cause the main heating roller 2 to insufficiently evaporate and crystallize the glutamic acid isoelectric mother liquid subsequently applied on the surface of the main heating roller 2, thereby improving the evaporation and crystallization effect of the main heating roller 2 on the glutamic acid isoelectric mother liquid.

[0065] A scraper plate matched with the rotating roller 13 is installed between the horizontal sections of the two support frames 1. The scraper plate can scrape the glutamate powder adhering to the rotating roller 13 to prevent the glutamate powder adhering to the rotating roller 13 from contacting the main heating roller 2 again, thereby affecting the subsequent grinding effect of the rotating roller 13 on the glutamate powder evaporated and crystallized on the main heating roller 2.

[0066] Reference Figure 7 A cleaning plate 41 cooperating with the auxiliary heating roller 4 is slidably arranged on the vertical section of the support frame 1 along its length direction, and a linkage blade 42 cooperating with the toggle blade 724 is installed on the cleaning plate 41. A rectangular protrusion is arranged on any vertical section of the support frame 1, and a telescopic spring rod 43 is installed between the rectangular protrusion and the cleaning plate 41.

[0067] The part where the cleaning plate 41 contacts the auxiliary heating roller 4 is provided with bristles. During specific operation, at the starting position, the bristles can also clean the glutamic acid powder evaporated and crystallized on the auxiliary heating roller 4 during the rotation process. When the toggling blade 724 is in contact with the linkage blade 42 during the rotation process, the toggling blade 724 drives the linkage blade 42 to move, and the cleaning plate 41 is driven to move during the movement of the linkage blade 42. At this time, the telescopic spring rod 43 is stretched, and the cleaning plate 41 can drive the bristles to clean the glutamic acid powder evaporated and crystallized on the surface of the auxiliary heating roller 4 during the movement, and collect it through the existing collection frame. When the toggling blade 724 is disengaged from the linkage blade 42, the telescopic spring rod 43 is reset and drives the cleaning plate 41 to reset. When the toggling blade 724 contacts the linkage blade 42 again, the above action is repeated to drive the cleaning plate 41 to move back and forth, and then the cleaning plate 41 drives the bristles to give friction to the auxiliary heating roller 4 during the reciprocating movement, so that the glutamic acid powder evaporated and crystallized on the auxiliary heating roller 4 can be more thoroughly cleaned.

[0068] Finally, the collected glutamate powder is collected and stored for later use.

[0069] Example 2: Reference Figure 8 On the basis of the first embodiment, in order to prevent the glutamic acid and other electrolyte mother liquids inside the leakage box 3 from leaking out too quickly, resulting in the possibility that too much glutamic acid and other electrolyte mother liquids applied on the main heating roller 2 cannot evaporate and crystallize in time, the adjustment plate 32 provided by the present invention can solve the above problem. Specifically, the top of the horizontal section of the support frame 1 is equipped with a support protrusion, the leakage box 3 is installed between two support protrusions, and a moving block 31 is slidably arranged inside the leakage box 3. The moving block 31 is equipped with an adjustment plate 32 for controlling the amount of glutamic acid and other electrolyte mother liquids leaking out of the leakage box 3. A threaded rod 33 is installed on the side of the moving block 31 away from the adjustment plate 32 through a bearing, and a fixed block 34 is installed on the top of the inner wall of the leakage box 3, and the end of the threaded rod 33 away from the moving block 31 is installed on the fixed block 34 by a threaded connection.

[0070] The cross-section of the bottom port of the leakage box 3 is a V-shaped structure, and the prefabricated matching adjustment plate 32 is also a V-shaped structure. During specific operation, when it is necessary to adjust the flow rate of glutamic acid and other electrolyte mother liquids leaking from the leakage box 3, the threaded rod 33 is rotated at this time. During the rotation of the threaded rod 33, the moving block 31 is driven to slide inside the leakage box 3. At this time, the moving block 31 drives the adjustment plate 32 to slide toward the bottom port of the leakage box 3 during the sliding process. As the adjustment plate 32 moves, the distance between the bottom of the adjustment plate 32 and the bottom port of the leakage box 3 gradually decreases. When it is reduced to the specified position, the threaded rod 33 is no longer rotated at this time. Then, by changing the position of the adjustment plate 32, the size of the bottom port of the leakage box 3 can be changed, thereby adjusting the outflow speed of glutamic acid and other electrolyte mother liquids from the bottom port of the leakage box 3, ensuring that the amount of glutamic acid and other electrolyte mother liquids applied to the main heating roller 2 is in a suitable range, thereby ensuring the evaporation and crystallization effect of glutamic acid and other electrolyte mother liquids.

[0071] Finally, refer to Fig. 9The present invention also provides a glutamic acid isoelectric mother liquid evaporation crystallization process, and the use process includes the following steps: S1: start preparation, rotate the main heating roller 2 and the auxiliary heating roller 4 to make the two rotate, at this time, the auxiliary heating roller 4 can drive the shifting blade 724 to rotate around the shaft head of the auxiliary heating roller 4 during the rotation process, and the shifting blade 724 contacts the linkage plate 722 during the rotation process and drives the linkage plate 722 to move upward, and the linkage plate 722 moves upward The telescopic end of the cylinder 721 moves upward, and at this time, the cylinder 721 passes through the air inlet pipe 72 5. Air is blown into the blower box 7, and the reset spring 723 is compressed. When the shifting blade 724 is separated from the linkage plate 722, the reset spring 723 resets and drives the linkage plate 722 to reset. During the reset process of the linkage plate 722, the telescopic end of the air cylinder 721 is reset. When the shifting blade 724 contacts the linkage plate 722 again and drives the linkage plate 722 to move upward, the above-mentioned action is repeated, and gas can be pumped into the blower box 7 repeatedly. The gas inside the blower box 7 is discharged to the main heating roller 2 through the vent 71.

[0072] S2: coating treatment, manually pouring glutamic acid and other electrolyte mother liquid into the leakage box 3 through the top port, and the glutamic acid and other electrolyte mother liquid is smeared on the surface of the main heating roller 2 after passing through the bottom port of the leakage box 3.

[0073] S3: Evaporation and crystallization. The main heating roller 2, the auxiliary heating roller 4 and the blower box 7 cooperate with each other to perform evaporation and crystallization treatment on the glutamic acid and other electrolyte mother liquids in step S2.

[0074] S4: Collection and processing: the solid powders such as evaporated and crystallized smeared glutamic acid can be collected and processed by the cooperation between the rotating roller 13 and the cleaning plate 41.

[0075] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0076] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A glutamic acid isoelectric mother liquid evaporation crystallization device, comprising two symmetrically arranged T-shaped support frames (1), characterized in that: A main heating roller (2) is jointly installed between the horizontal sections of the described support frame (1) through bearings, where: A liquid leakage box (3) that cooperates with and penetrates the main heating roller (2) is jointly installed on the horizontal sections of the support frame (1). A secondary heating roller (4) is jointly installed between the vertical sections of the support frame (1) through bearings. A guiding plate (5) is arranged between the vertical sections of the support frame (1) and between the main heating roller (2) and the secondary heating roller (4), and the bottom of the guiding plate (5) is in contact with the secondary heating roller (4). A blower box (7) that cooperates with the main heating roller (2) is jointly installed between the horizontal sections of the support frame (1).

2. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 1, characterized in that: Support protrusions are installed on the horizontal sections of the support frame (1), and the blower box (7) is installed on the two support protrusions. A plurality of ventilation openings (71) that penetrate its interior are evenly arranged on one side of the blower box (7) close to the main heating roller (2). A blower assembly (72) for blowing air into the interior of the blower box (7) is jointly installed between the blower box (7) and the secondary heating roller (4).

3. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 2, characterized in that: The described blower assembly (72) includes: An air cylinder (721) installed on the side of the blower box (7) away from the main heating roller (2) through a fixed protrusion, and a linkage plate (722) is installed at the telescopic end of the air cylinder (721); A return spring (723) sleeved on the telescopic section of the air cylinder (721), with one end of the return spring (723) installed on the fixed section of the air cylinder (721) and the other end installed on the linkage plate (722); A拨动 blade (724) installed on the shaft head of the secondary heating roller (4) and cooperating with the linkage plate (722); An air inlet pipe (725) with one end installed at the air outlet of the air cylinder (721), and the end of the air inlet pipe (725) away from the air cylinder (721) is connected to the blower box (7) in a penetrating manner.

4. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 1, characterized in that: A baffle plate (11) that cooperates with the main heating roller (2) is jointly installed between the horizontal sections of the support frame (1).

5. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 1, characterized in that: A scraper (51) with a U-shaped structure and an opening facing the secondary heating roller (4) is slidably arranged on the guiding plate (5). The two vertical sections of the scraper (51) are arranged on both sides of the guiding plate (5). Connecting blocks are installed on the vertical sections of the support frame (1), and a bidirectional screw rod (52) extending along the length direction of the main heating roller (2) is jointly installed between the connecting blocks through bearings. A linkage frame (53) is installed on the bidirectional screw rod (52) by a threaded connection method, and a section of the linkage frame (53) away from the bidirectional screw rod (52) is connected to the scraper (51).

6. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 5, characterized in that: The end of the linkage frame (53) away from the bidirectional screw (52) is provided with a lifting plate (531) which slides along its height direction, and the end of the lifting plate (531) away from the linkage frame (53) is installed on the scraper (51). A clearance groove (532) is provided at either end of the guide plate (5) and the part not in contact with the auxiliary heating roller (4). A supporting spring rod (533) is provided inside the clearance groove (532), and a lifting block (534) is installed at the top of the supporting spring rod (533). An electromagnet 1 (535) is provided at the bottom of the lifting plate (531), and an electromagnet 2 (536) which cooperates with the electromagnet 1 (535) is provided on the support frame (1) near the clearance groove (532).

7. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 1, characterized in that: The support frame (1) is provided with a support protrusion at the top of the horizontal section, the leakage box (3) is installed between the two support protrusions, a moving block (31) is slidably arranged inside the leakage box (3), an adjusting plate (32) for controlling the amount of glutamic acid and other electrolytes leaking from the leakage box (3) is installed on the moving block (31), a threaded rod (33) is installed on the side of the moving block (31) away from the adjusting plate (32) through a bearing, a fixed block (34) is installed on the top of the inner wall of the leakage box (3), and the end of the threaded rod (33) away from the moving block (31) is installed on the fixed block (34) through a threaded connection.

8. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 6, characterized in that: The horizontal sections of the support frame (1) are each provided with a support vertical plate (12), and a rotating roller (13) matching with the main heating roller (2) is commonly provided on the two support vertical plates (12), and the shaft head of the rotating roller (13) close to the clearance groove (532) passes through the corresponding support vertical plate (12) and is provided with a gear 1 (14); The shaft head of the main heating roller (2) near the clearance groove (532) passes through the corresponding support frame (1) and is equipped with a gear 2 (15) meshing with the gear 1 (14).

9. The glutamic acid isoelectric mother liquor evaporation crystallization device according to claim 2, characterized in that: A cleaning plate (41) cooperating with the auxiliary heating roller (4) is slidably arranged on the vertical section of the support frame (1) along its length direction, and a linkage blade (42) cooperating with the shifting blade (724) is installed on the cleaning plate (41). A rectangular protrusion is arranged on any vertical section of the support frame (1), and a telescopic spring rod (43) is installed between the rectangular protrusion and the cleaning plate (41).

10. A glutamic acid isoelectric mother liquid evaporation crystallization process, comprising a glutamic acid isoelectric mother liquid evaporation crystallization device as claimed in any one of claims 1 to 9, characterized in that: The method of use includes the following steps: S1: Start preparation, rotate the main heating roller (2) and the auxiliary heating roller (4) to make them rotate, and then blow air to the main heating roller (2) through the blower box (7); S2: coating treatment, applying glutamic acid and other electrolyte mother liquid to the main heating roller (2) through the leakage box (3); S3: evaporation crystallization, the glutamic acid isoelectric mother solution of step S2 is evaporated and crystallized by the cooperation of the main heating roller (2), the auxiliary heating roller (4) and the blower box (7); S4: collecting and processing, the solid powders such as evaporated and crystallized smeared glutamic acid are collected and processed by the cooperation of the rotating roller (13) and the cleaning plate (41).

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