A kind of ethyl trigonelline lactone production device and use method thereof

Abstract

The invention provides an ethyl fenugreek lactone production device and a use method thereof, and relates to the technical field of chemical production equipment. The device comprises a stirring reaction barrel, wherein a plurality of stirring support rods are arranged in an annular array inside the stirring reaction barrel, a corresponding number of heating coils are arranged in an annular array on the side of the stirring support rod away from the inner wall of the stirring reaction barrel, a corresponding number of stirring scrapers are arranged in an annular array on the side of the stirring support rod close to the inner wall of the stirring reaction barrel, two groups of blades with brushes are symmetrically arranged on the surface of the stirring support rod, a restraining part is arranged on one wide surface of the stirring scraper, and rolling brushes are symmetrically arranged on both sides of the stirring scraper; stirring and heating of the heating coil, the stirring support rod and the stirring scraper of the invention can improve the heating effect of the device while completing stirring, and the attachment of stubborn stains inside the device can be reduced by arranging moving beads, connecting round blocks and blades with brushes, so that the device is easy to clean, thereby improving the production efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of chemical production equipment, in particular to an ethyl trigonelline lactone production device and a use method thereof. Background Art

[0002] Ethyl trigonelline is a food spice that can be used to flavor various foods and add a unique flavor to the food. It is widely used in the flavor and fragrance industry and is often used to prepare flavors with special aromas, such as caramel, maple syrup, coffee and other flavors.

[0003] During the production process of ethyl fenugreek lactone, the stirring stage occupies most of the production time. During the stirring stage, a heating device is usually required to heat the inside of the stirring container to keep the temperature of the stirring process at 60°C to 80°C, so as to maintain a better reaction rate between the starting material and the catalyst.

[0004] The stirring part of the existing production device usually uses a heating interlayer between the inner and outer walls of the stirring barrel or a heating mechanism is arranged inside the stirring barrel. The arrangement of the heating interlayer is likely to cause uneven heating of the raw materials inside the stirring part, thereby affecting the rate of the ethylation reaction and the generation ratio of by-products. The arrangement of the heating mechanism inside the stirring barrel makes the cleaning dead corners inside the stirring barrel too many, increasing the burden of the cleaning process. For stubborn stains adhered to the inner wall of the reaction device and the heating mechanism during the reaction process, it is easy to increase the difficulty of cleaning and increase the cleaning time, thereby affecting the overall reaction time of ethyl fenugreek lactone. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an ethyl fenugreek lactone production device and a method for using the same. By stirring and heating a heating coil, a stirring support rod and a stirring scraper, the heating effect of the device can be improved while completing the stirring. By setting moving beads, connecting round blocks and blades with brushes, the adhesion of stubborn stains inside the device can be reduced, thereby making the device easy to clean and improving the production efficiency of the device.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] An ethyl fenugreek lactone production device and a method for using the same, comprising a support mounting frame and a stirring reaction barrel, a precipitation reaction kettle and a linear slide mounted inside the support mounting frame, wherein the stirring reaction barrel, the precipitation reaction kettle and the evaporation reaction kettle are connected through a pipeline, and an electric control valve is installed at the discharge pipe at the bottom of the stirring reaction barrel, and further comprising:

[0008] A plurality of stirring support rods are arranged in a circular array inside the stirring reaction barrel, a corresponding number of heating coils are arranged in a circular array on the side of the stirring support rods away from the inner wall of the stirring reaction barrel, and a corresponding number of stirring scrapers are arranged in a circular array on the side of the stirring support rods close to the inner wall of the stirring reaction barrel, which are used to stir the starting materials put into the stirring reaction barrel and provide heating at the same time;

[0009] Two groups of brush blades are symmetrically arranged on the surface of the stirring support rod, and each group of brush blades is symmetrically distributed on both sides of the stirring support rod, and brush bodies are arranged on the surfaces of the two corresponding brush blades on both sides of the stirring support rod, and the brush body on the surface of each brush blade conflicts with the brush blade corresponding to the other side of the stirring support rod. During the stirring process, the brush blades are washed and rotated by the mixed liquid, and the stirring support rod, the stirring scraper and the heating coil are brushed by the brush body to reduce the adhesion of stubborn stains. At the same time, the corresponding brush blades clean each other through the brush bodies to reduce the adhesion of stubborn stains on the surfaces of the brush blades;

[0010] A restraining member is provided on one of the wide surfaces of the stirring scraper, which is used for scraping the inner wall of the stirring reaction barrel when the stirring scraper is stirring in the forward direction, and not contacting the inner wall of the stirring reaction barrel when the stirring scraper is rotating in the reverse direction, so as to control the cleaning time and stirring effect of the stirring scraper;

[0011] Rolling brushes are symmetrically arranged on both sides of the stirring scraper. The brushed blades on both sides of the stirring scraper surface are located between the two rolling brushes. When the brushed blades move between the rolling brushes, the rolling brushes brush the surfaces of the brushed blades to prevent stubborn stains from sticking to the interior of the stirring reaction barrel.

[0012] Furthermore, a kettle cover is detachably installed on the top of the stirring reaction barrel, and a rotating block is rotatably connected to the circular opening on the surface of the kettle cover through a first bearing and a first dynamic sealing ring. The stirring support rods are fixedly connected to the bottom surface of the rotating block in a ring array, and the stirring scrapers are respectively fixedly connected to the side of the stirring support rods corresponding to the inner wall of the stirring reaction barrel. The stirring scrapers are made of flexible material, and a second bevel gear is fixedly connected to the surface of the rotating block. A driving motor is installed on the surface of the sliding block of the linear slide, and a first bevel gear is fixedly connected to the end of the output shaft of the driving motor, and the first bevel gear is meshingly connected to the second bevel gear. A plurality of multi-stage telescopic cylinders are installed on the surface of the support mounting frame, and the telescopic ends of the multi-stage telescopic cylinders are fixedly connected to the surface of the kettle cover.

[0013] Furthermore, a hot oil diverter box is fixedly connected in a circular mounting groove on the surface of the rotating block, a sealing cover is detachably mounted on the upper surface of the hot oil diverter box, an oil return box is arranged on the inner side of the hot oil diverter box, a plurality of supporting communication blocks are arranged in a circular array between the oil return box and the hot oil diverter box, a separating ring is fixedly connected in an annular groove on the side surface of the hot oil diverter box, a rotating sealing sleeve is rotatably connected to the surface of the hot oil diverter box through a second bearing and a second dynamic sealing ring, and the rotating sealing sleeve is sealed and connected to the separating ring through a third dynamic sealing ring. The heating coils are fixedly connected to the bottom of the hot oil diverter box in an annular array, the liquid inlet ends of the heating coils are respectively located in the corresponding first through holes opened on the bottom surface of the hot oil diverter box, and the liquid outlet ends of the heating coils are respectively located in the corresponding second through holes opened on the bottom surface of the return oil box, an oil outlet and an oil inlet are opened on the surface of the rotating sealing sleeve, the separating ring is located between the oil outlet and the oil inlet, and a third through groove is opened inside several of the supporting interconnecting blocks located above the separating ring for connecting the interior of the return oil box and the supporting interconnecting blocks.

[0014] Furthermore, the restraining member arranged on the surface of the stirring blade includes a plurality of restraining blocks arranged on the surface of the stirring blade, and the restraining blocks are arranged in multiple groups along the extension direction of the stirring blade, and each group of restraining blocks is arranged equidistantly along the extension direction perpendicular to the stirring blade, and the restraining blocks are fixedly connected in corresponding inlay grooves opened on the surface of the stirring blade.

[0015] Furthermore, a first slide groove is provided on the surface of the stirring support rod, a moving ball is arranged inside the first slide groove, and connecting round blocks are symmetrically arranged on the surface of the moving ball. The surfaces of the connecting round blocks are all in contact with the stirring support rod, and the brush blades are fixedly connected to the surfaces of the connecting round blocks in a circular array.

[0016] Furthermore, a plurality of engaging grooves are equidistantly provided on one side of the first slide groove, and a plurality of engaging protrusions are fixedly connected to the surface of the moving bead in a ring array, and the engaging protrusions are engaged with the engaging grooves accordingly.

[0017] Furthermore, the brush blade maintains rigidity along the axial direction of the connecting circle, maintains elasticity along the axial direction perpendicular to the connecting circle, and the end of the brush blade away from the connecting circle does not contact the inner wall of the stirring reaction barrel.

[0018] Furthermore, the roller brush is rotatably connected to the bottom surface of the rotating block via a fourth bearing, and when the connecting round block moves to the top of the first slide groove, the bottom end of the roller brush is located below the connecting round block.

[0019] Furthermore, the inner wall of the stirring reaction barrel is provided with a plurality of ridges in a ring array.

[0020] Furthermore, the method for using the ethyl trigonelline lactone production device further includes:

[0021] Step 1: open the sealing cover, add the solvent into the stirring reaction barrel, and pump hot oil into the oil inlet through the heat pump to raise the temperature of the solution in the stirring reaction barrel to between °C and °C, and start the driving motor to make the rotating block drive the stirring support rod, the stirring scraper and the heating coil to stir the solvent alternately clockwise and counterclockwise and continuously heat it;

[0022] Step 2: Add the catalyst into the stirring reaction tank, add the reaction raw materials after the catalyst is mixed, and add the ethylating agent in a dropwise manner. During this process, the stirring and heating process is still continued, and detection is performed at set intervals;

[0023] Step three, passing the mixed solution after the reaction in step two into the precipitation reactor through the electric control valve for precipitation, and passing the clear liquid after precipitation into the evaporation reactor for fractionation. When the mixed liquid in the stirring reaction barrel is completely passed into the precipitation reactor, open the reactor cover, and lift the reactor cover through the multi-stage telescopic cylinder, use high-pressure washing equipment to wash and dry the inside of the stirring reaction barrel and the parts on the reactor cover, and after washing, proceed to step one for reaction.

[0024] The above solution of the present invention includes at least the following beneficial effects:

[0025] The above scheme of the present invention can improve the stirring effect and control the cleaning time of the inner wall of the device by limiting the deformation of the stirring scraper. While reducing the stubborn stains attached to the inside of the device, it also prevents mechanical wear caused by excessive cleaning. The heating coil is arranged inside the device to heat and participate in stirring at the same time, thereby improving the heating effect of the heating coil, thereby increasing the reaction rate of the device and reducing the production of by-products. At the same time, the arrangement of the brush blade makes it difficult for stubborn stains to adhere to the inside of the device, and also keeps the heating effect of the heating coil in an optimal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a driving motor provided by an embodiment of the present invention.

[0027] Figure 2 It is a schematic diagram of a multi-stage telescopic cylinder provided in an embodiment of the present invention.

[0028] Figure 3 It is a schematic diagram of a stirring blade provided in an embodiment of the present invention.

[0029] Figure 4It is a schematic diagram of a ridge provided in an embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of an oil return box provided in an embodiment of the present invention.

[0031] Figure 6 It is a schematic diagram of a roller brush provided by an embodiment of the present invention.

[0032] Figure 7 It is a schematic diagram of a blade with a brush provided according to an embodiment of the present invention.

[0033] Figure 8 The embodiments of the present invention provide Figure 8 Enlarged view of point A in the middle.

[0034] Fig. 9 It is a distribution diagram of constraint blocks provided by an embodiment of the present invention.

[0035] Fig.10 It is a schematic diagram of the installation of the restraint block provided in an embodiment of the present invention.

[0036] In the figure: 101, support mounting frame; 102, stirring reaction barrel; 103, precipitation reaction kettle; 104, evaporation reaction kettle; 105, linear slide; 106, electric control valve;

[0037] 201, first bevel gear; 202, kettle cover; 203, rotating block; 204, hot oil diverter box; 205, rotating sealing sleeve; 206, heating coil; 207, stirring support rod; 208, stirring scraper; 209, sealing cover; 210, driving motor; 211, second bevel gear; 212, multi-stage telescopic cylinder; 213, first slide groove; 214, moving ball; 215, connecting round block; 216, blade with brush; 217, rolling brush; 218, convex ridge; 219, restraining block; 220, meshing groove; 221, meshing convex block; 301, separating ring; 302, oil return box; 303, supporting communication block; 304, oil outlet; 305, oil inlet. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0039] like Figure 1As shown, an embodiment of the present invention provides an ethyl fenugreek lactone production device and a method of using the same, comprising a support mounting frame 101 and a stirring reaction barrel 102, a precipitation reaction kettle 103 and a linear slide 105 installed inside the support mounting frame 101, wherein the stirring reaction barrel 102, the precipitation reaction kettle 103 and the evaporation reaction kettle 104 are connected by a pipeline, and an electric control valve 106 is installed at the discharge pipe at the bottom of the stirring reaction barrel 102.

[0040] like Figures 1 to 10 As shown, it also includes:

[0041] A plurality of stirring support rods 207 are arranged in a circular array inside the stirring reaction barrel 102, a corresponding number of heating coils 206 are arranged in a circular array on the side of the stirring support rods 207 away from the inner wall of the stirring reaction barrel 102, and a corresponding number of stirring scrapers 208 are arranged in a circular array on the side of the stirring support rods 207 close to the inner wall of the stirring reaction barrel 102, which are used to stir the starting materials put into the stirring reaction barrel 102 and provide heating at the same time;

[0042] Two groups of brush blades 216 are symmetrically arranged on the surface of the stirring support rod 207, and each group of the brush blades 216 is symmetrically distributed on both sides of the stirring support rod 207, and the surfaces of the two corresponding brush blades 216 on both sides of the stirring support rod 207 are provided with brush bodies, and the brush bodies on the surfaces of each brush blade 216 are in conflict with the brush blade 216 corresponding to the other side of the stirring support rod 207. During the stirring process, the brush blades 216 are rotated by the mixed liquid, and the stirring support rod 207, the stirring scraper 208 and the heating coil 206 are brushed by the brush bodies to reduce the adhesion of stubborn stains. At the same time, the corresponding brush blades 216 are cleaned by the brush bodies to reduce the adhesion of stubborn stains on the surfaces of the brush blades 216.

[0043] A restraining member is provided on one of the wide surfaces of the stirring blade 208, which is used for the stirring process. When the stirring blade 208 is stirring in the forward direction, the stirring blade 208 scrapes the inner wall of the stirring reaction barrel 102, and when the stirring blade 208 is rotating in the reverse direction, the stirring blade 208 does not contact the inner wall of the stirring reaction barrel 102, so as to control the cleaning time and stirring effect of the stirring blade 208;

[0044] Rolling brushes 217 are symmetrically arranged on both sides of the stirring scraper 208, and the brush blades 216 on both sides of the surface of the stirring scraper 208 are located between the two rolling brushes 217. When the brush blades 216 move between the rolling brushes 217, the rolling brushes 217 brush the surfaces of the brush blades 216 to prevent stubborn stains from sticking to the interior of the stirring reaction barrel 102.

[0045] In the embodiment of the present invention, during the stirring process, the heating coil 206 participates in stirring while heating, so that the temperature of the mixed liquid inside the stirring reaction barrel 102 is more uniform, which is beneficial to increasing the reaction rate of the starting raw materials while reducing the generation of by-products. At the same time, the deformation ability of the stirring scraper 208 on the stirring support rod 207 is controlled, so that the stirring effect of the stirring support rod 207 in the clockwise and counterclockwise directions changes, reducing the stirring dead angle and making the stirring more sufficient. In addition, the different deformation abilities of the stirring scraper 208 in clockwise stirring and counterclockwise stirring are used to control the scraping time of the stirring scraper 208 on the inner wall of the stirring reaction barrel 102, thereby reducing the mechanical damage caused by excessive scraping. At the same time, the clockwise and counterclockwise deformation abilities of the stirring support rod 207 are different. During the clockwise or counterclockwise rotation, the mixed liquid is flushed by the brush blade 216, and the brush blade 216 brushes the surface of the stirring support rod 207, the stirring scraper 208 and the heating coil 206, thereby reducing the generation of stubborn stains on the surface of the stirring support rod 207, the stirring scraper 208 and the heating coil 206 during the reaction process, thereby reducing the difficulty of cleaning. At the same time, when the brush blade 216 rotates between the two roller brushes 217, the brushing of the roller brush 217 causes the side of the brush blade 216 away from the stirring support rod 207 to be brushed, and at the same time, the roller brush 217 itself is cleaned under the action of the interaction force, thereby reducing the adhesion area of ​​the stubborn stains inside the stirring reaction barrel 102, further reducing the difficulty of cleaning the device.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, a kettle cover 202 is detachably mounted on the top of the stirring reaction barrel 102, a rotating block 203 is rotatably connected in a circular opening on the surface of the kettle cover 202 through a first bearing and a first dynamic seal ring, the stirring support rods 207 are fixedly connected to the bottom surface of the rotating block 203 in a ring array, the stirring scrapers 208 are respectively fixedly connected to the side of the stirring support rods 207 close to the inner wall of the stirring reaction barrel 102, the stirring scrapers 208 are made of flexible material, a second bevel gear 211 is fixedly connected to the surface of the rotating block 203, a driving motor 210 is mounted on the surface of the sliding block of the linear slide 105, a first bevel gear 201 is fixedly connected to the end of the output shaft of the driving motor 210, the first bevel gear 201 is meshed with the second bevel gear 211, a plurality of multi-stage telescopic cylinders 212 are mounted on the surface of the support mounting frame 101, and the telescopic ends of the multi-stage telescopic cylinders 212 are fixedly connected to the surface of the kettle cover 202.

[0047] In the embodiment of the present invention, the rotating block 203 is detachably mounted on the top of the stirring reaction barrel 102 by means of a threaded rod and a nut and a threaded groove opened at a corresponding position. The multi-stage telescopic cylinder 212 is provided to facilitate lifting the rotating block 203 and the mounting components on the surface of the rotating block 203 out of the stirring reaction barrel 102. Through the cooperation of the second bevel gear 211, the drive motor 210 and the first bevel gear 201, the rotating block 203 can rotate clockwise or counterclockwise relative to the stirring reaction barrel 102, and the mixed liquid inside the stirring reaction barrel 102 is stirred by the stirring support rod 207 and the stirring scraper 208. The stirring scraper 208 has a certain deformation ability, so that it is not easy to be rigidly damaged when scraping the inner wall of the stirring reaction barrel 102, and the rotation speed is controlled to control whether it contacts the inside of the stirring reaction barrel 102, thereby controlling the time for scraping the inner wall.

[0048] In another preferred embodiment of the present invention, a plurality of small holes may be provided on the surface of the stirring blade 208, and the radial angle between the small holes and the rotation axis of the stirring blade 208 is less than 90°, so that the stirring blade 208 can exert a vertical influence on the mixed liquid during the stirring process, thereby further improving the stirring effect.

[0049] like Figure 4 and Figure 5 As shown, a hot oil diverter box 204 is fixedly connected in a circular mounting groove provided on the surface of the rotating block 203, a sealing cover 209 is detachably installed on the upper surface of the hot oil diverter box 204, an oil return box 302 is arranged on the inner side of the hot oil diverter box 204, a plurality of supporting communication blocks 303 are arranged in a circular array between the oil return box 302 and the hot oil diverter box 204, a separating ring piece 301 is fixedly connected in an annular groove provided on the side surface of the hot oil diverter box 204, a rotating sealing sleeve 205 is rotatably connected to the surface of the hot oil diverter box 204 through a second bearing and a second dynamic sealing ring, the rotating sealing sleeve 205 is sealingly connected to the separating ring piece 301 through a third dynamic sealing ring, the The heating coil 206 is fixedly connected to the bottom of the hot oil diverter box 204 in a circular array, the liquid inlet ends of the heating coil 206 are respectively located in the corresponding first through holes opened on the bottom surface of the hot oil diverter box 204, and the liquid outlet ends of the heating coil 206 are respectively located in the corresponding second through holes opened on the bottom surface of the return oil box 302. The surface of the rotating sealing sleeve 205 is provided with an oil outlet 304 and an oil inlet 305, and the separating ring 301 is located between the oil outlet 304 and the oil inlet 305, wherein a third through groove is opened inside several of the supporting interconnecting blocks 303 located above the separating ring 301, which is used to connect the return oil box 302 and the interior of the supporting interconnecting blocks 303.

[0050] In an embodiment of the present invention, the mating threads of the threaded groove of the sealing cover 209 are connected to the upper surface of the hot oil diverter box 204, and the sealing cover 209 is sealed and connected to the hot oil diverter box 204. A titration device can be installed on the surface of the sealing cover 209 for titrating and adding the ethylating agent. An air pressure control device can also be installed on its surface to control the air pressure in the stirring reaction barrel 102. The separating ring 301 separates the hot oil diverter box 204 into an upper liquid return area and a lower liquid inlet area. The supporting connecting block 303 connects the hot oil diverter box 204 and the oil return box 302, so that when the hot oil diverter box 204 rotates, the oil outlet 304 and the oil inlet 305 on the rotating sealing sleeve 205 can remain fixed relative to the heat pump, which is convenient for the smooth flow of the oil circuit.

[0051] like Fig. 9 and Fig.10 As shown, the restraining members arranged on the surface of the stirring blade 208 include a plurality of restraining blocks 219 arranged on the surface of the stirring blade 208, and a plurality of groups of the restraining blocks 219 are arranged along the extension direction of the stirring blade 208, and each group of the restraining blocks 219 are arranged equidistantly along the extension direction perpendicular to the stirring blade 208, and the restraining blocks 219 are fixedly connected in corresponding inlay grooves opened on the surface of the stirring blade 208.

[0052] In the embodiment of the present invention, by setting the constraint block 219, the stirring blade 208 is subjected to greater resistance from the constraint block 219 when deforming toward the surface where the constraint block 219 is located, and is subjected to less resistance from the constraint block 219 when deforming toward the other surface, so that the degree of deformation of the constraint block 219 is different during clockwise and counterclockwise stirring of the device. Therefore, at the same stirring speed, the rotation direction of the stirring blade 208 can be controlled by the driving motor 210 to control the scraping time of the stirring blade 208 on the inner wall of the stirring reaction barrel 102, thereby avoiding excessive scraping and causing mechanical damage to the internal components of the stirring reaction barrel 102.

[0053] like Figure 6 , Figure 7 and Figure 8 As shown, a first slide groove 213 is provided on the surface of the stirring support rod 207, a moving ball 214 is arranged inside the first slide groove 213, and connecting round blocks 215 are symmetrically arranged on the surface of the moving ball 214. The surfaces of the connecting round blocks 215 are all in contact with the stirring support rod 207, and the brush blades 216 are fixedly connected to the surface of the connecting round blocks 215 in a ring array.

[0054] A plurality of engagement grooves 220 are equidistantly formed on one side of the first slide groove 213 , and a plurality of engagement protrusions 221 are fixedly connected to the surface of the moving ball 214 in an annular array, and the engagement protrusions 221 are correspondingly engaged with the engagement grooves 220 .

[0055] The brush blade 216 maintains rigidity along the axial direction of the connecting circular block 215 , maintains elasticity along the axial direction perpendicular to the connecting circular block 215 , and the end of the brush blade 216 away from the connecting circular block 215 does not contact the inner wall of the stirring reaction barrel 102 .

[0056] The rolling brush 217 is rotatably connected to the bottom surface of the rotating block 203 via a fourth bearing. When the connecting round block 215 moves to the top of the first sliding groove 213 , the bottom end of the rolling brush 217 is located below the connecting round block 215 .

[0057] The inner wall of the stirring reaction barrel 102 is provided with a plurality of ridges 218 in a circular array.

[0058] In the embodiment of the present invention, when the driving motor 210 controls the rotating block 203 to rotate clockwise, the brush blade 216 is flushed by the mixed solution and rotates, and the connecting round block 215 drives the moving ball 214 to rotate, so that another brush blade 216 located on the surface of the same stirring support rod 207 follows the rotation. During the rotation process, the moving ball 214 moves upward along the first slide groove 213 under the meshing cooperation of the meshing groove 220 and the meshing protrusion 221. In this process, the brush blade 216 moves along the extension track of the first slide groove 213 during the rotation process, thereby agitating the stirring support rod 207 and the stirring scraper 207. 8 and the surface of the heating coil 206 are brushed. When the driving motor 210 controls the rotating block 203 to rotate counterclockwise, the brush blade 216 on the other side is greatly affected by the scouring of the solution, causing the moving bead 214 to rotate in the opposite direction, thereby causing the brush blade 216 to move downward along the extension track of the first slide groove 213. That is, by switching the forward and reverse directions of the driving motor 210, the brush blade 216 can be controlled to continuously brush the surfaces of the stirring support rod 207, the stirring scraper 208 and the heating coil 206, thereby reducing the attachment of stubborn stains on the surface, keeping the heating effect of the heating coil 206 in a better state, and further reducing the difficulty of cleaning the device;

[0059] The arrangement of the roller brush 217 enables the roller brush 217 to brush the surface of the roller brush blade 216 when the roller brush 217 moves along the first slide groove 213 to contact the roller brush 217, thereby reducing the stubborn stains attached to the surface of the roller brush blade 216 away from the stirring blade 208. At the same time, through the interaction, the roller brush 217 itself is not easy to be attached with stubborn stains. The roller brush blade 216 maintains elasticity along the axial direction perpendicular to the connecting round block 215, so that it is not easy to cause rigid damage to the stirring blade 208, the heating coil 206 and the stirring support rod 207. The roller brush blade 216 maintains rigidity along the axial direction of the connecting round block 215, which can improve the utilization rate of the mixed solution flushing force on it, thereby maintaining its rotation speed and ensuring the brushing effect. At the same time, the rotation of the roller brush blade 216 also further improves the stirring effect of the device.

[0060] The provision of the ridges 218 further improves the stirring effect of the solution in the stirring reaction barrel 102 , and at the same time, supplements and cleans the portion of the surface of the stirring scraper 208 that is not brushed by the brush blade 216 .

[0061] In another preferred embodiment of the present invention, the connecting block 215 can be detachably installed on the surface of the moving bead 214, such as by being connected through a screw and a threaded groove opened on the surface of the moving bead 214. During the cleaning process, the connecting block 215 and the moving bead 214 can be replaced to reduce the cleaning time of the device.

[0062] In another preferred embodiment of the present invention, the connecting block 215 is rotatably connected to the moving ball 214 via a one-way bearing, so that when the driving motor 210 controls the stirring scraper 208 to stir clockwise or counterclockwise, relative rotation occurs between the two groups of brush blades 216 located on the surface of the same moving ball 214, thereby increasing the ability of the brush blades 216 to clean each other.

[0063] like Figures 1 to 10 In the embodiment of the present invention, the method for using the ethyl fenugreek lactone production device comprises the following steps:

[0064] Step 1: open the sealing cover 209, add the solvent into the stirring reaction barrel 102, and pump hot oil into the oil inlet 305 through the heat pump to raise the temperature of the solution in the stirring reaction barrel 102 to between 60° C. and 80° C., and start the driving motor 210, so that the rotating block 203 drives the stirring support rod 207, the stirring scraper 208 and the heating coil 206 to stir the solvent alternately clockwise and counterclockwise and continuously heat it;

[0065] Step 2: Add a catalyst into the stirring reaction barrel 102. After the catalyst is mixed, add the reaction raw materials and add the ethylating agent in a dropwise manner. During this process, the stirring and heating process is still continued, and detection is performed at set intervals;

[0066] Step 3: Pass the mixed solution after the reaction in step 2 into the precipitation reactor 103 through the electric control valve 106 for precipitation, and pass the clear liquid after precipitation into the evaporation reactor 104 for fractionation. When the mixed liquid in the stirring reaction barrel 102 is completely passed into the precipitation reaction kettle 103, open the kettle cover 202, and lift the kettle cover 202 through the multi-stage telescopic cylinder 212. Use high-pressure washing equipment to wash and dry the parts inside the stirring reaction barrel 102 and on the kettle cover 202. After washing, enter step 1 for reaction;

[0067] It should be noted that: this device needs to be used in conjunction with an external heat pump and a drying device. The external heat pump passes the hot oil into the oil inlet 305 through a pipeline, passes through the area below the separation ring 301 inside the hot oil diverter box 204, enters the liquid inlet of the heating coil 206, and enters the interior of the return oil box 302 from the liquid outlet of the heating coil 206, and then enters the area above the separation ring 301 in the hot oil diverter box 204 through the support and communication block 303 with a third through groove, and finally returns to the heat pump through the oil outlet 304, so as to perform hot oil circulation heating. The drying device can be a hot air blower to air-dry the cleaned device. The use of the heat pump and the drying device is well known in the prior art and will not be described in detail.

[0068] The use of the precipitation reactor 103 and the evaporation reactor 104 is well known in the prior art and will not be described in detail. The cleaning process is shorter than the stirring and heating process for producing ethyl fenugreek lactone, so it can be cleaned during the reaction stage of the starting raw materials in the production process of ethyl fenugreek lactone, and this process has little effect on the production efficiency of ethyl fenugreek lactone.

[0069] The electric-controlled valve 106 is an electric-controlled three-way valve. In the stirring stage, the electric-controlled valve 106 is in a fully closed state. When the stirring is completed, the electric-controlled valve 106 controls the pipeline leading to the precipitation reactor 103 to be a passage. When the liquid in the stirring reaction barrel 102 is completely passed into the precipitation reactor 103, the electric-controlled valve 106 controls the pipeline leading to the precipitation reactor 103 to be a blocked state. In the process of cleaning the stirring reaction barrel 102, the electric-controlled valve 106 controls its pipe opening leading to the waste liquid treatment device to be a passage state;

[0070] The pipe connection method of the device can be connected by threaded wire and threaded groove. In order to keep the pipe connection sealed, a sealing gasket can be used. This is well known in the prior art and will not be described in detail here.

[0071] The brush body on the surface of the brush blade 216 is elastic and can brush the inner wall of the first chute 213 to reduce the cleaning dead corners.

[0072] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ethyl fenugreek lactone production device, comprising a support mounting frame (101) and a stirring reaction barrel (102), a precipitation reaction kettle (103) and a linear slide (105) mounted inside the support mounting frame (101), wherein the stirring reaction barrel (102), the precipitation reaction kettle (103) and the evaporation reaction kettle (104) are connected by a pipeline, and an electric control valve (106) is installed at the discharge pipe at the bottom of the stirring reaction barrel (102), characterized in that: Also includes: A plurality of stirring support rods (207) are arranged in a circular array inside the stirring reaction barrel (102); a corresponding number of heating coils (206) are arranged in a circular array on the side of the stirring support rods (207) away from the inner wall of the stirring reaction barrel (102); and a corresponding number of stirring scrapers (208) are arranged in a circular array on the side of the stirring support rods (207) close to the inner wall of the stirring reaction barrel (102), for stirring the starting materials put into the stirring reaction barrel (102) and providing heating at the same time; Two groups of brush blades (216) are symmetrically arranged on the surface of the stirring support rod (207), and each group of brush blades (216) is symmetrically distributed on both sides of the stirring support rod (207), and the surfaces of the two corresponding brush blades (216) on both sides of the stirring support rod (207) are provided with brush bodies, and the brush body on the surface of each brush blade (216) contacts the corresponding brush blade (216) on the other side of the stirring support rod (207). During the stirring process, the brush blades (216) are rotated by being flushed by the mixed liquid, and the brush bodies brush the stirring support rod (207), the stirring scraper (208) and the heating coil (206) to reduce the adhesion of stubborn stains. At the same time, the corresponding brush blades (216) clean each other through the brush bodies to reduce the adhesion of stubborn stains on the surfaces of the brush blades (216); A restraining member is provided on one of the wide surfaces of the stirring scraper (208), and is used for, during the stirring process, when the stirring scraper (208) stirs in the forward direction, the stirring scraper (208) scrapes the inner wall of the stirring reaction barrel (102), and when the stirring scraper (208) rotates in the reverse direction, the stirring scraper (208) does not contact the inner wall of the stirring reaction barrel (102), so as to control the cleaning time of the stirring scraper (208) and the stirring effect; Rolling brushes (217) are symmetrically arranged on both sides of the stirring scraper (208); the brushed blades (216) on both sides of the surface of the stirring scraper (208) are located between the two rolling brushes (217); when the brushed blades (216) move between the rolling brushes (217), the rolling brushes (217) brush the surfaces of the brushed blades (216), so that stubborn stains are not easily attached to the interior of the stirring reaction barrel (102); The top of the stirring reaction barrel (102) is detachably mounted with a kettle cover (202); a rotating block (203) is rotatably connected to a circular opening on the surface of the kettle cover (202) via a first bearing and a first dynamic seal ring; the stirring support rods (207) are fixedly connected to the bottom surface of the rotating block (203) in a circular array; the stirring scrapers (208) are respectively fixedly connected to a side of the stirring support rods (207) close to the inner wall of the stirring reaction barrel (102); the stirring scrapers (208) are made of flexible material; A second bevel gear (211) is fixedly connected to the surface of the moving block (203); a driving motor (210) is installed on the surface of the sliding block of the linear slide (105); a first bevel gear (201) is fixedly connected to the end of the output shaft of the driving motor (210); the first bevel gear (201) is meshingly connected to the second bevel gear (211); a plurality of multi-stage telescopic cylinders (212) are installed on the surface of the supporting mounting frame (101); and the telescopic ends of the multi-stage telescopic cylinders (212) are fixedly connected to the surface of the kettle cover (202); A hot oil diverter box (204) is fixedly connected in a circular installation groove provided on the surface of the rotating block (203); a sealing cover (209) is detachably installed on the upper surface of the hot oil diverter box (204); an oil return box (302) is arranged on the inner side of the hot oil diverter box (204); a plurality of supporting and connecting blocks (303) are arranged in a circular array between the oil return box (302) and the hot oil diverter box (204); a separation ring (301) is fixedly connected in an annular groove provided on the side surface of the hot oil diverter box (204); a rotating sealing sleeve (205) is rotatably connected to the surface of the hot oil diverter box (204) via a second bearing and a second dynamic sealing ring; the rotating sealing sleeve (205) is sealingly connected to the separation ring (301) via a third dynamic sealing ring; and the heating plate The tubes (206) are fixedly connected to the bottom of the hot oil diverter box (204) in an annular array, the liquid inlet ends of the heating coils (206) are respectively located in corresponding first through holes opened on the bottom surface of the hot oil diverter box (204), and the liquid outlet ends of the heating coils (206) are respectively located in corresponding second through holes opened on the bottom surface of the oil return box (302), the surface of the rotating sealing sleeve (205) is provided with an oil outlet (304) and an oil inlet (305), the separation ring (301) is located between the oil outlet (304) and the oil inlet (305), wherein a third through groove is opened inside a plurality of the supporting and connecting blocks (303) located above the separating ring (301) for connecting the inside of the oil return box (302) and the supporting and connecting blocks (303); The restraining member arranged on the surface of the stirring scraper (208) comprises a plurality of restraining blocks (219) arranged on the surface of the stirring scraper (208); a plurality of groups of the restraining blocks (219) are arranged along the extension direction of the stirring scraper (208); each group of the restraining blocks (219) are arranged equidistantly along the extension direction perpendicular to the stirring scraper (208); and the restraining blocks (219) are fixedly connected to corresponding inlay grooves opened on the surface of the stirring scraper (208); A first slide groove (213) is provided on the surface of the stirring support rod (207), a moving ball (214) is arranged inside the first slide groove (213), and connecting round blocks (215) are symmetrically arranged on the surface of the moving ball (214), and the surfaces of the connecting round blocks (215) are all in contact with the stirring support rod (207), and the brush blades (216) are fixedly connected to the surfaces of the connecting round blocks (215) in a ring array; A plurality of engagement grooves (220) are equidistantly formed on one side of the first slide groove (213); a plurality of engagement protrusions (221) are fixedly connected to the surface of the moving ball (214) in an annular array; the engagement protrusions (221) are correspondingly engaged with the engagement grooves (220); The brush blade (216) maintains rigidity along the axial direction of the connecting circular block (215), the brush blade (216) maintains elasticity along the axial direction perpendicular to the connecting circular block (215), and the end of the brush blade (216) away from the connecting circular block (215) does not contact the inner wall of the stirring reaction barrel (102); The rolling brush (217) is rotatably connected to the bottom surface of the rotating block (203) via a fourth bearing, and when the connecting round block (215) moves to the top of the first sliding groove (213), the bottom end of the rolling brush (217) is located below the connecting round block (215); The inner wall of the stirring reaction barrel (102) is provided with a plurality of ridges (218) in a ring array.

2. A method for using an ethyl trigonelline lactone production device, characterized in that: The device as claimed in claim 1 comprises the following steps: Step 1, open the sealing cover (209), add a solvent into the interior of the stirring reaction barrel (102), and pump hot oil into the interior of the oil inlet (305) through a heat pump, so that the temperature of the solution in the stirring reaction barrel (102) rises to between 60° C. and 80° C., and start the drive motor (210), so that the rotating block (203) drives the stirring support rod (207), the stirring scraper (208) and the heating coil (206) to stir the solvent alternately clockwise and counterclockwise and continuously heat it; Step 2, adding a catalyst into the stirring reaction barrel (102), and after the catalyst is mixed, adding the reaction raw materials, and adding the ethylating agent in a dropwise manner, during which the stirring and heating process is still continued, and detection is performed at set intervals; In step 3, the mixed solution after the reaction in step 2 is passed into the precipitation reactor (103) through the electric control valve (106) for precipitation, and the clear liquid after precipitation is passed into the interior of the evaporation reactor (104) for fractionation. When the mixed liquid in the stirring reaction barrel (102) is completely passed into the interior of the precipitation reaction kettle (103), the reactor cover (202) is opened and lifted by the multi-stage telescopic cylinder (212). The interior of the stirring reaction barrel (102) and the parts on the reactor cover (202) are rinsed and dried using high-pressure washing equipment. After the cleaning is completed, the reaction is carried out in step 1.

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