High-efficiency recovery device for mono-ammonium glycyrrhizinate mother liquor

Abstract

A high-efficiency recovery device for monoammonium glycyrrhizinate mother liquor relates to the technical field of monoammonium glycyrrhizinate recovery, and adopts the technical scheme that the high-efficiency recovery device comprises a tank body, a liquid inlet pipe is arranged on the tank body, one end of the liquid inlet pipe extends into the tank body, a second outlet of the tank body is connected with a main liquid discharge pipe, a first outlet of the tank body is connected with a recovery cylinder, and a leaked liquid filter cylinder is arranged in the recovery cylinder. The technical scheme has the beneficial effects that the moisture-containing crystal material settled in the tank body enters the horizontal recycling barrel and then is conveyed by the rotating spiral blade, and the spiral blade stirs and properly crushes the caked or adhered material during rotation, so that the residual mother liquor wrapped in the crystal is released. In the process that materials are pushed by the spiral blades to advance, the materials are restrained by the space between the blades and the inner wall of the liquid leakage filter drum, a certain extrusion effect is generated, residual liquid is forced to be separated out through the filter drum, and the solid-liquid separation efficiency and thoroughness are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquorice acid monoammonium salt recovery technical field especially relates to a liquorice acid monoammonium salt mother liquor high -efficient recovery device. BACKGROUND

[0002] Liquorice acid monoammonium salt has hormone -like activity, but no hormone side effect, not only to tracheitis, bronchitis, cough, asthma and other respiratory diseases have remarkable curative effect, and also have certain effect to digestive tract infection, hepatitis B, oral ulcer, gastric ulcer etc.. For a variety of toxins such as diphtheria toxin, puffer toxin, tetanus toxin and snake venom etc. have strong detoxification efficacy. Also have the effect similar to adrenal cortex hormone.

[0003] The mother liquor produced in the crystallization separation process of liquorice acid monoammonium salt production is still in the supersaturated state due to the time relationship in the crystallization process, resulting in that part of the product cannot be fully crystallized and precipitated, and the patent with the application number CN202220426262.4 discloses a liquorice acid monoammonium salt mother liquor recovery and precipitation device. The patent realizes the recovery of the crystalline product by discharging the concentrated slurry rich in crystals through the liquid precipitation discharge main pipe and the liquid precipitation discharge auxiliary pipe.

[0004] However, in the actual recovery process, the thick slurry formed by the crystallization and the mother liquor is discharged from the liquid precipitation discharge main pipe, rather than the pure crystalline product. Under the separation mode of pure gravity sedimentation, the liquid film adsorbed on the surface of the crystal, the mother liquor retained in the capillary pores between particles and the liquid wrapped inside the aggregates cannot be effectively removed. The mixture of these residual mother liquor and crystallization directly leads to a significant reduction in the purity of the subsequent obtained product, and causes the loss of valuable target components with the mother liquor, incomplete solid-liquid separation, and the purity of the crystalline product is seriously affected by the residual mother liquor, which directly leads to the decrease of the overall recovery rate. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiency that the mother liquor cannot be completely separated in the existing crystallization, and proposes a liquorice acid monoammonium salt mother liquor high -efficient recovery device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The application discloses a kind of glycyrrhizin monammonium salt mother liquor high-efficiency recovery device, including tank body, tank body is provided with liquid inlet pipe, one end of liquid inlet pipe extends into tank body, second outlet of tank body is connected with main liquid discharge pipe, first outlet of tank body is connected with recovery cylinder, leakage filter cartridge is arranged in recovery cylinder, rotation shaft is arranged in recovery cylinder along length direction, one end of rotation shaft passes through leakage filter cartridge and extends to one side of leakage filter cartridge, spiral blade is sleeved on rotation shaft, outlet and discharge port are arranged in the lower part of recovery cylinder, motor is installed on the side wall of recovery cylinder, the output shaft of motor is connected at one end of rotation shaft by coupling.

[0008] After the wet crystal filter cake containing mother liquor preliminarily concentrated by the settling tank, the wet crystal filter cake is transported forward by the rotating spiral blade. In this process, the spiral blade simultaneously produces stirring and moderate crushing effect on the material, so that the residual mother liquor wrapped in the crystal is fully released. Under the mechanical extrusion and propulsion, the free mother liquor is separated and discharged through the leakage filter cartridge wrapped outside the spiral blade, and the dewatered solid crystal is continuously transported to the discharge port and finally discharged. The structure realizes the simultaneous completion of extrusion, crushing and filtration in dynamic transportation, and significantly improves the efficiency and thoroughness of solid-liquid separation.

[0009] Preferably, two mounting convex rings are arranged in the recovery cylinder, and the two ends of the leakage filter cartridge are mounted on the two mounting convex rings, respectively. The inner diameter of the mounting convex ring is greater than the outer diameter of the spiral blade, and the liquid outlet on the recovery cylinder is located between the two mounting convex rings.

[0010] The leakage filter cartridge is stably positioned in the recovery cylinder through the two mounting convex rings, which ensures its absolute stillness in the working process. The design that the inner diameter of the mounting convex ring is greater than the outer diameter of the spiral blade forms a stable extrusion gap between them, which allows the spiral blade to freely rotate and transport the material, and also produces the necessary mechanical extrusion effect on the material, forcing the mother liquor to be separated and discharged through the filter cartridge. The liquid outlet is located between the two mounting convex rings, which can efficiently collect and discharge the separated liquid.

[0011] Preferably, an inner convex ring is mounted on the side wall in the tank body, and an annular filter screen is arranged in the inner convex ring. The second outlet of the tank body is located above the inner convex ring.

[0012] Preferably, the end of the liquid inlet pipe located in the tank body is connected with a liquid outlet pipe, the lower end of the liquid outlet pipe penetrates through the annular filter screen and extends below the annular filter screen, the outer wall of the liquid outlet pipe is connected with an outer convex ring, and the annular filter screen is mounted on the outer convex ring.

[0013] The inner convex ring and the outer convex ring jointly fix the annular filter screen, forming a filtering barrier at the inlet of the main liquid discharge pipe in the tank body. This structure ensures that all liquids must pass through the filter screen when discharging the upper clear liquid, which can effectively intercept the small crystal particles that have not completely settled, preventing them from being lost with the clear liquid in the preliminary separation stage, thereby improving the overall recovery rate of the product.

[0014] Preferably, the liquid outlet pipe is tapered from narrow top to wide bottom.

[0015] The tapered liquid outlet pipe can reduce the flow rate of mother liquor into the tank.

[0016] Preferably, a reflection plate is arranged in the tank, the reflection plate is tapered from narrow top to wide bottom, the reflection plate is located below the liquid outlet pipe, the side wall of the tank is provided with a plurality of connecting rods, and the connecting rods are connected to the reflection plate away from the side wall of the tank.

[0017] The tapered reflection plate below is suspended and fixed by a plurality of connecting rods, which can further buffer and disperse the liquid flow, greatly reducing the impact disturbance on the settled crystals at the bottom of the tank. The combined design creates a stable and stable settling environment for the crystal particles, improving the efficiency of preliminary settling and the stability of the crystal layer.

[0018] Preferably, a secondary liquid discharge pipe is connected to the liquid outlet, the outlet of the main liquid discharge pipe is connected to the secondary liquid discharge pipe, a secondary liquid discharge on-off valve is arranged on the secondary liquid discharge pipe, and a main liquid discharge on-off valve is arranged on the main liquid discharge pipe.

[0019] The main liquid discharge pipe and the secondary liquid discharge pipe of the recovery cylinder are connected to the same pipeline, which simplifies the pipeline layout outside the equipment, reduces the installation complexity and cost. By respectively arranging the liquid inlet on-off valve, the main liquid discharge on-off valve and the secondary liquid discharge on-off valve, the feeding, clear liquid discharge and extrusion liquid discharge can be independently and flexibly controlled, which is convenient for operation and process management.

[0020] Preferably, a liquid inlet on-off valve is arranged on the liquid inlet pipe.

[0021] Preferably, a material inlet is arranged on the recovery cylinder, a discharge pipe is connected to the first outlet of the tank, the outlet of the discharge pipe is connected to the material inlet, and a discharge on-off valve is connected to the discharge pipe.

[0022] Through the connection of the discharge pipe and the material inlet, the sealed material transfer between the settling tank and the recovery cylinder is realized, which prevents material leakage and external pollution. The discharge on-off valve allows flexible control of the timing of conveying the settled material to the recovery cylinder.

[0023] Preferably, a discharge hopper is connected to the discharge port.

[0024] The discharge hopper is convenient for collecting and guiding the final solid product after dehydration.

[0025] Compared with the prior art, the beneficial effects of the utility model are that: the wet crystal material after settlement in the tank body enters the horizontal recovery cylinder and is transported by the rotating spiral blade, the spiral blade stirs and moderately crushes the caked or adhered material in rotation, so that the residual mother liquor wrapped in the crystal is released. In the process of being pushed forward by the spiral blade, the material is subjected to space constraint between the blade and the inner wall of the leakage filter cylinder, so that certain extrusion effect is generated, and the residual liquid is forced to be separated out through the filter cylinder. The leakage filter cylinder wrapped outside the spiral blade can continuously filter out the extruded liquid in the material transportation process and discharge through the auxiliary liquid discharge pipe at the bottom. Therefore, the solid-liquid separation is completed in dynamic transportation, and the filtration is more efficient and thorough. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0027] Figure 1 It is a sectional view of the specific embodiment of the utility model.

[0028] Figure 2 It is a structure schematic view of the structure in the recovery cylinder in the specific embodiment of the utility model.

[0029] Figure 3 It is a structure schematic view of the installation of the annular filter screen in the specific embodiment of the utility model.

[0030] Figure 4 It is a structure schematic view of the reflective plate in the specific embodiment of the utility model.

[0031] In the drawing: 1, tank body;2, first supporting leg;3, liquid inlet pipe;4, liquid inlet on-off valve;5, liquid outlet pipe;6, reflective plate;7, main liquid discharge pipe;8, main liquid discharge on-off valve;9, discharge pipe;10, discharge on-off valve;11, recovery cylinder;12, second supporting leg;13, material inlet;14, discharge port;15, discharge hopper;16, rotating shaft;17, motor;18, spiral blade;19, mounting convex ring;20, leakage filter cylinder;21, auxiliary liquid discharge pipe;22, auxiliary liquid discharge on-off valve;23, outer convex ring;24, inner convex ring;25, annular filter screen;26, connecting rod;27, liquid outlet. DETAILED DESCRIPTION

[0032] In order to make the purpose, characteristics and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] With reference to Figures 1-4The utility model provides a kind of glycyrrhizic acid monoammonium salt mother liquor high-efficiency recovery device, including tank body 1, tank body 1 is provided with inlet pipe 3, inlet pipe 3 is provided with inlet on-off valve 4, one end of inlet pipe 3 extends to tank body 1, the lower of tank body 1 is provided with multiple first support leg 2, and first support leg 2 supports tank body 1, and the second outlet of tank body 1 is connected with main liquid discharge pipe 7, and tank body 1 is as primary settling unit, and the mother liquor to be handled enters tank body 1 by inlet pipe 3 and is stationary, so that most crystalline solids are settled in tank bottom;The bottom of tank body 1 is the conical structure of wide top and narrow bottom.Sedimentation, the supernatant is discharged through main liquid discharge pipe 7, and wet crystalline is passed through first outlet and enters recovery cylinder 11, and the first outlet of tank body 1 is connected with recovery cylinder 11, and the lower of recovery cylinder 11 is provided with multiple second support leg 12, and second support leg 12 supports recovery cylinder 11, and makes the inlet 13 on recovery cylinder 11 correspondingly arranged with the first outlet of tank body 1, and recovery cylinder 11 is provided with inlet 13, and the first outlet of tank body 1 is connected with discharge pipe 9, and the outlet of discharge pipe 9 is connected on inlet 13, and discharge pipe 9 is connected with discharge on-off valve 10, and opening discharge on-off valve 10 facilitates that crystalline solid is transported into recovery cylinder 11, and outlet 27 is connected with auxiliary liquid discharge pipe 21, and the outlet of main liquid discharge pipe 7 is connected on auxiliary liquid discharge pipe 21, and auxiliary liquid discharge pipe 21 is provided with auxiliary liquid discharge on-off valve 22, when the mother liquor squeezed from crystalline is discharged through auxiliary liquid discharge pipe 21, main liquid discharge pipe 7 is provided with main liquid discharge on-off valve 8, so that main liquid discharge pipe 7 and auxiliary liquid discharge pipe 21 share an outlet, reduce the cost of equipment, and recovery cylinder 11 is provided with leakage filter cylinder 20, and recovery cylinder 11 is provided with shaft 16 along the length direction, one end of shaft 16 passes through leakage filter cylinder 20 and extends to one side of leakage filter cylinder 20, and screw blade 18 is sleeved on shaft 16, and the lower part of recovery cylinder 11 is provided with outlet 27 and discharge port 14, when conveying crystalline, motor 17 drives shaft 16 to rotate through coupling, and shaft 16 drives screw blade 18 to rotate.Leaf in the process of axially pushing material, residual mother liquor wrapped in the inside of crystalline is released, in the process that material is pushed forward by screw blade 18, be constrained by the space between leaf and leakage filter cylinder 20 inner wall, produce certain extrusion effect, force residual liquid to pass through filter hole of leakage filter cylinder 20 and enter the inner chamber of recovery cylinder 11, and finally be discharged by outlet 27;And the solid crystalline after dewatering is continuously pushed by screw blade 18 to discharge port 14 and is discharged, so that the liquid content of precipitated material discharged from discharge hopper 15 of recovery cylinder 11 is reduced, the recovery efficiency of glycyrrhizic acid monoammonium salt mother liquor is improved, and discharge port 14 is connected with discharge hopper 15, and motor 17 is installed on the sidewall of recovery cylinder 11, and the output shaft of motor 17 is connected on one end of shaft 16 through coupling.

[0034] Reference Figure 1 And Figure 2The recovery cylinder 11 is provided with two mounting convex rings 19, the two ends of the liquid leakage filter cylinder 20 are respectively mounted on the two mounting convex rings 19, the two mounting convex rings 19 limit the two ends of the liquid leakage filter cylinder 20, and the inner diameter of the mounting convex ring 19 is greater than the outer diameter of the spiral blade 18, the liquid outlet 27 on the recovery cylinder 11 is located between the two mounting convex rings 19, when the spiral blade 18 rotates, the gap constrains and extrudes the material, which promotes the mother liquor to be discharged under pressure, and then the mother liquor passes through the filter hole of the liquid leakage filter cylinder 20 and is delivered to the recovery cylinder 11, and then is discharged through the liquid outlet 27.

[0035] Referring to Figure 1 and Figure 3 , the inner convex ring 24 is mounted in the side wall of the tank body 1, the annular filter screen 25 is arranged in the inner convex ring 24, the second outlet of the tank body 1 is located above the inner convex ring 24, the end of the liquid inlet pipe 3 inside the tank body 1 is connected with the liquid outlet pipe 5, the liquid outlet pipe 5 is tapered with the upper part being narrow and the lower part being wide, the lower end of the liquid outlet pipe 5 penetrates through the annular filter screen 25 and extends below the annular filter screen 25, the outer wall of the liquid outlet pipe 5 is connected with the outer convex ring 23, the annular filter screen 25 is mounted on the outer convex ring 23, and the annular filter screen 25 is mounted in the tank body 1 through the inner convex ring 24 and the outer convex ring 23. The liquid outlet pipe 5 extends through the center of the annular filter screen 25 to below it, ensuring that the liquid directly enters the settling zone without interfering with the filtration process, and the second outlet of the tank body 1 is located above the inner convex ring 24. When the main liquid discharge on-off valve 8 is opened to discharge the supernatant, the liquid must flow horizontally from the center area of the tank to the liquid outlet and pass through the annular filter screen 25, which can effectively intercept and block the suspended micro-crystalline particles when discharging the supernatant, preventing them from being discharged with the liquid, reducing the loss of the product in the preliminary separation stage, and achieving more thorough primary solid-liquid separation.

[0036] Referring to Figure 1 and Figure 4 , the tank body 1 is provided with a reflection plate 6, the reflection plate 6 is tapered with the upper part being narrow and the lower part being wide, the reflection plate 6 is located below the liquid outlet pipe 5, the side wall of the tank body 1 is provided with a plurality of connecting rods 26, the connecting rods 26 are uniformly arranged along the circumferential direction of the reflection plate 6, and the connecting rods 26 support the reflection plate 6. When the mother liquor flows out from the lower end of the liquid outlet pipe 5, it will be buffered and intercepted by the reflection plate 6, and finally flow downward to the pipe body from the edge of the reflection plate 6, thereby further reducing the impact of the downward flow of the mother liquor on the bottom of the tank body 1 and the influence on the precipitation process of the mother liquor, and the connecting rods 26 are connected to the reflection plate 6 away from the side wall of the tank body 1. Through the combined design of the liquid outlet pipe 5 and the reflection plate 6, the flow rate and impact force of the mother liquor entering the tank body 1 are effectively reduced, a more stable fluid environment is created for the standing and settling of the crystalline particles, turbulent disturbance is reduced, and the preliminary settling efficiency is improved.

[0037] When working, the monoammonium glycyrrhizinate mother liquor to be recovered is transported into the tank body 1 through the liquid inlet pipe 3 and the liquid outlet pipe 5, the flow cross section of the mother liquor is gradually increased due to the conical tubular structure of the liquid outlet pipe 5, so that the flow rate of the mother liquor is gradually reduced, then the liquid falls on the reflection plate 6, the reflection plate 6 buffers and intercepts, and finally flows downward to the tank body 1 from the edge of the reflection plate 6, so as to further reduce the impact of the downward flow of the mother liquor on the bottom of the tank body 1 and the influence on the precipitation process of the mother liquor; after the mother liquor is precipitated in the tank body 1 for a certain time, the main liquid discharge on-off valve 8 is opened, the liquid in the upper part is discharged from the tank body 1 through the main liquid discharge pipe 7, since the connection position of the main liquid discharge pipe 7 and the tank body 1 is located above the annular filter screen 25, so that the suspended precipitates can be intercepted, avoiding the situation that the precipitated materials are discharged together with the liquid through the main liquid discharge pipe 7, then the discharge on-off valve 10 is opened, the precipitate in the lower part is discharged into the recovery cylinder 11 through the discharge pipe 9, the motor 17 outside the recovery cylinder 11 is started, the motor 17 drives the rotating shaft 16 and the spiral blade 18 to rotate through the shaft coupling, the spiral blade 18 conveys the precipitated materials from the inlet 13 to the discharge port 14 in the recovery cylinder 11 in the form of spiral conveying during the rotation, and the rotating spiral blade 18 stirs the precipitated materials during the conveying process, the liquid entering the recovery cylinder 11 together with the precipitated materials is separated from the precipitated materials by the leakage filter cylinder 20, so as to reduce the liquid content of the precipitated materials discharged from the discharge hopper 15 of the recovery cylinder 11, and improve the recovery efficiency of the monoammonium glycyrrhizinate mother liquor.

[0038] The above description of disclosed embodiments enables one skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor, characterized in that: The tank includes a tank body (1), an inlet pipe (3) is provided on the tank body (1), one end of the inlet pipe (3) extends into the tank body (1), a main drain pipe (7) is connected to the second outlet of the tank body (1), a recovery cylinder (11) is connected to the first outlet of the tank body (1), a leakage filter cylinder (20) is provided inside the recovery cylinder (11), a rotating shaft (16) is provided along the length direction inside the recovery cylinder (11), one end of the rotating shaft (16) passes through the leakage filter cylinder (20) and extends to one side of the leakage filter cylinder (20), a spiral blade (18) is sleeved on the rotating shaft (16), an outlet (27) and a discharge port (14) are provided at the lower part of the recovery cylinder (11), a motor (17) is installed on the side wall of the recovery cylinder (11), and the output shaft of the motor (17) is connected to one end of the rotating shaft (16) through a coupling.

2. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 1, characterized in that: The recovery cylinder (11) is provided with two mounting protrusions (19). The two ends of the leakage filter cylinder (20) are respectively mounted on the two mounting protrusions (19). The inner diameter of the mounting protrusions (19) is larger than the outer diameter of the spiral blade (18). The liquid outlet (27) on the recovery cylinder (11) is located between the two mounting protrusions (19).

3. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 1, characterized in that: An inner convex ring (24) is installed on the inner side wall of the tank (1), and an annular filter screen (25) is installed inside the inner convex ring (24). The second outlet of the tank (1) is located above the inner convex ring (24).

4. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 3, characterized in that: The inlet pipe (3) is located inside the tank (1) and connected to the outlet pipe (5). The lower end of the outlet pipe (5) passes through the annular filter (25) and extends to the bottom of the annular filter (25). The outer wall of the outlet pipe (5) is connected to an outer protruding ring (23), and the annular filter (25) is installed on the outer protruding ring (23).

5. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 4, characterized in that: The outlet pipe (5) is a tapered design that is narrow at the top and wide at the bottom.

6. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 4, characterized in that: A reflector plate (6) is installed inside the tank (1). The reflector plate (6) is a conical structure that is narrow at the top and wide at the bottom. The reflector plate (6) is located below the liquid outlet pipe (5). Multiple connecting rods (26) are installed on the side wall inside the tank (1). The connecting rods (26) are connected to the reflector plate (6) on the side wall away from the tank (1).

7. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 1, characterized in that: A secondary drain pipe (21) is connected to the outlet (27), the outlet of the main drain pipe (7) is connected to the secondary drain pipe (21), a secondary drain on / off valve (22) is installed on the secondary drain pipe (21), and a main drain on / off valve (8) is installed on the main drain pipe (7).

8. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 1, characterized in that: An inlet valve (4) is installed on the inlet pipe (3).

9. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 1, characterized in that: The recycling cylinder (11) is provided with an inlet (13), the first outlet of the tank (1) is connected to a discharge pipe (9), the outlet of the discharge pipe (9) is connected to the inlet (13), and the discharge pipe (9) is connected to a discharge on / off valve (10).

10. The high-efficiency recovery device for glycyrrhizic acid monoammonium salt mother liquor according to claim 1, characterized in that: A discharge hopper (15) is connected to the discharge port (14).

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