Ethanol precipitation separation device based on konjac glucomannan preparation process

Abstract

The invention discloses an ethanol precipitation and separation device based on a konjac glucomannan preparation process, and relates to the field of konjac glucomannan preparation, the ethanol precipitation and separation device comprises a mounting rack, and a liquid accumulation barrel and a material mixing barrel which are fixedly assembled on the mounting rack, the material mixing barrel is located above the liquid accumulation barrel, and the liquid accumulation barrel and the material mixing barrel are concentrically distributed; the top of the material mixing barrel is in a closed state, an arc-shaped door capable of being opened and closed is arranged on the side wall of the liquid accumulation barrel, and a detachable closing cover is embedded in the top of the material mixing barrel. Under the action of the centrifugal separation unit, liquid in the mixed solution is discharged, sediments are left in the centrifugal separation unit, and then under the action of the sediment collection unit, the sediments in the centrifugal separation unit are automatically collected and treated, so that workers do not need to take out the sediments in the centrifugal separation unit.

Description

Technical Field

[0001] The invention relates to the field of konjac glucomannan oligosaccharide preparation, in particular to an ethanol precipitation separation device based on the konjac glucomannan oligosaccharide preparation process. Background Art

[0002] Glucomannan oligosaccharide has the characteristics of low caloric value, low sweetness, no dental caries, no increase in blood sugar concentration, etc., and can be used for the diet regulation of diabetic patients, and glucomannan oligosaccharide can usually be extracted from konjac. The principle of extraction is to add konjac glucomannan solution into a reaction vessel, and slowly and appropriately add ethanol through an ethanol adding device. Under the action of ethanol, the solubility of konjac glucomannan oligosaccharide is reduced and precipitated from the solution. In order to improve the efficiency of ethanol promoting the precipitation of konjac glucomannan solution, a stirring structure is also utilized to fully mix ethanol with the solution, thereby accelerating the formation of precipitation. After precipitation is completed, a precipitation separation component is utilized to separate the precipitation from the supernatant to obtain the crude product of konjac glucomannan oligosaccharide.

[0003] A water-soluble dietary fiber ethanol precipitation and separation device is described in a public technical document (CN209152278U). In this scheme, water-soluble dietary fiber (konjac glucomannan in konjac glucomannan solution belongs to water-soluble dietary fiber) is added into a stirring structure from a feeding port, and then ethanol is added into the stirring structure from the feeding port, and a motor is started, and a rotating shaft is driven by the motor to rotate, and the rotating shaft drives a precipitation separation box body to rotate, and the precipitation separation box body drives a rotating rod to rotate, and a stirring blade on the rotating rod rotates the mixture of water-soluble dietary fiber and ethanol in a rotating hopper. Stirring, allowing both to fully react, until precipitation is precipitated in the solution, turning off the motor, opening the valve, the water-soluble dietary fiber and ethanol mixture in the rotating hopper flows into the rotating rod from the two leakage holes on the rotating rod, and flows into the filter through the rotating rod. At this time, the motor is turned on again, and the motor drives the precipitation separation box body to rotate through the rotating shaft. The solution is quickly driven to rotate at the same speed as the precipitation separation box body. Under the action of centrifugal force, solid particles settle to the inner wall of the filter to form sediment, and the solution flows into the bottom of the precipitation separation box body through the filter screens on both sides, thereby completing solid-liquid separation. While opening the valve to pass the reacted solution into the filter, water-soluble dietary fiber and ethanol can also be added to the stirring structure. At this time, the motor is started. Since the stirring structure and the precipitation separation structure are both rotated by the rotating rod and driven by a single shaft, the new water-soluble dietary fiber and ethanol are stirred while the solution is being separated into solid and liquid, so that they can fully react. In this way, time can be fully utilized, and stirring and mixing reactions can be carried out while precipitation separation is carried out;

[0004] However, in the above scheme, since the capacity in the filter is limited, it is necessary to discharge the mixed solution intermittently by opening and closing the valve, and after the mixed solution is discharged, the motor is started again, so as to realize stirring and mixing and centrifugal separation at the same time, but when the above two effects are carried out simultaneously, the motor needs to be frequently paused and restarted during the period, and the valve needs to be opened and closed again in the gap when the motor is paused, and its operation method is very cumbersome. And if the water-soluble dietary fiber is not fully mixed with ethanol, the precipitate will not be completely separated out, and the mixed solution is discharged into the filter at this time, and the precipitate that can be obtained is not much; if the water-soluble dietary fiber is fully mixed with ethanol, the precipitate is completely separated out, and there is no need to control the intermittent opening and closing of the valve at this time, and the mixed solution only needs to be slowly flowed into the inside of the filter for centrifugal separation, so the existing technical scheme can not effectively improve the separation effect of the precipitate. Summary of the invention

[0005] The object of the present invention is to provide an ethanol precipitation separation device based on the preparation process of konjac glucomannan oligosaccharide to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical scheme: an ethanol precipitation and separation device based on a konjac glucomannan oligosaccharide preparation process, comprising: a mounting frame, and a liquid accumulation barrel and a mixing barrel fixedly mounted on the mounting frame, wherein the mixing barrel is located above the liquid accumulation barrel, and the liquid accumulation barrel and the mixing barrel are concentrically distributed, the top of the liquid accumulation barrel is open, and the top of the mixing barrel is closed, the side wall of the liquid accumulation barrel is provided with an openable and closable arc door, the top of the mixing barrel is embedded with a detachable closing cover, the mixing barrel is used to hold a mixed solution of konjac glucomannan solution and ethanol, and the liquid accumulation barrel is used to receive the supernatant after the mixed solution is precipitated;

[0007] A centrifugal separation unit, used for separating solids and liquids in the mixed solution, wherein the centrifugal separation unit is located inside the liquid accumulation barrel;

[0008] A feeding unit, used for adding the mixed solution into the interior of the centrifugal separation unit, wherein the feeding unit is located between the mixing barrel and the centrifugal separation unit;

[0009] The sediment collection unit automatically collects and processes the solid sediment in the centrifugal separation unit.

[0010] Preferably, the centrifugal separation unit includes a column that is rotatably inserted into the mixing barrel, a motor is fixedly mounted on the top of the mixing barrel, and a first synchronous gear and a first synchronous toothed belt are used as a transmission assembly between the output end of the motor and the outer surface of the column, a plurality of stirring rods that are equidistantly distributed in a circle are also fixedly arranged on the outer surface of the column, and the stirring rods are all distributed inside the mixing barrel, a bottom support plate is fixedly mounted on the outer surface of the bottom of the column, and a top cover plate is slidably mounted on the outer surface of the column, and the top cover plate is located on the bottom support plate. Above the plate, a plurality of positioning rods are fixedly provided on the outer surface of the bottom support plate, and the top of the positioning rod slides through the top cover plate, and the top of each positioning rod is also threadedly equipped with a bolt nut, and the position of the bottom support plate and the top cover plate can be fixed by threaded locking of the bolt nut and the positioning rod, an annular mesh belt is slidably installed between the bottom support plate and the top cover plate, and filter paper is fixedly attached to the inner wall of the annular mesh belt, the annular mesh belt is made of nylon and has good flexibility, and the bottom support plate and the top cover plate are both rounded rectangles.

[0011] Preferably, the feeding unit includes a through groove opened on the outer surface of the column barrel, and the through groove is located on the inner side of the mixing barrel, the lower end surface of the through groove is coplanar with the inner bottom surface of the mixing barrel, a hollow plunger is slidably mounted inside the column barrel, an optical axis is fixedly arranged inside the hollow plunger, and the top of the optical axis slides through the column barrel, a connecting plate is rotatably arranged on the top outer surface of the optical axis, the optical axis and the connecting plate are connected by a bearing, a cylinder push rod is also fixedly mounted on the top of the mixing barrel, the output end of the cylinder push rod moves up and down with the connecting plate, two symmetrically distributed bypass pipes are also fixedly arranged on the outer surface of the column barrel, and the interior of the bypass pipe is communicated with the inner bottom of the column barrel, the bypass pipe is located between the bottom support plate and the top cover plate, and the bypass pipe is inclined downward at the end away from the column barrel.

[0012] Preferably, a pressure sensor is fixedly arranged between the output end of the cylinder push rod and the connecting plate, and the output end of the cylinder push rod moves up and down with the connecting plate through the pressure sensor. A spring is also fixedly arranged between the top of the hollow plunger and the cylinder push rod. When the optical axis moves upward, the greater the elastic pressure applied to the pressure sensor, a speed control module is also arranged between the pressure sensor and the motor, and when the speed control module increases the pressure applied to the pressure sensor, the speed of the motor is increased at the same time.

[0013] Preferably, the speed control module includes an analog-to-digital converter, and the analog voltage output by the pressure sensor is V sensor , after conversion by the analog-to-digital converter, the value P is obtained adcThe number of bits of the analog-to-digital converter is n, and the reference voltage is V ref ;

[0014] The P adc The calculation formula is:

[0015] The minimum and maximum values ​​output by the pressure sensor are P min , P max , the speed of the motor is S, and the minimum speed and maximum speed of the motor are S min , S max , the pressure on the pressure sensor is linearly related to the speed S of the motor, and the linear slope is k,

[0016] According to the point-slope equation: y-y1=k(x-x1), where y is the speed S, and x is the value P obtained by the pressure sensor after conversion by the analog-to-digital converter. adc , x1=P min ,y1=S min ;

[0017] It can be deduced that: S = S min +k×(P adc -P min );

[0018] Substituting k into the above formula, we get:

[0019] Preferably, the number of the sediment collecting units is two, and they are equidistantly distributed between the bottom support plate and the top cover plate. The two equidistantly distributed sediment collecting units can ensure the balance of the bottom support plate and the top cover plate under high-speed rotation. The sediment collecting unit includes a discharge hole opened at the bottom of the bottom support plate, and an arc-shaped column shell is fixedly provided on the upper end surface of the bottom support plate. The inner diameter of the discharge hole is consistent with the inner diameter of the arc-shaped column shell. An arc-shaped extension portion is fixedly provided at one end of the arc-shaped column shell close to the filter paper, and the arc One end of the extension portion away from the arc-shaped cylindrical shell is slidingly tangent to the filter paper, a second rotating shaft is rotatably arranged inside the top cover plate, and the second rotating shaft extends into the interior of the arc-shaped cylindrical shell and the discharge hole, the second rotating shaft, the arc-shaped cylindrical shell and the discharge hole are all coaxially distributed, a spiral conveying blade is fixedly arranged on the outer surface of the second rotating shaft, and the spiral conveying blade is distributed inside the arc-shaped cylindrical shell, the difference between the outer diameter of the spiral conveying blade and the inner diameter of the arc-shaped cylindrical shell is 0-1mm, and a transmission component is also arranged on the outside of the second rotating shaft.

[0020] Preferably, the transmission component includes a first rotating shaft rotatably mounted on the outer edge of the top cover plate, and the first rotating shaft and the second rotating shaft are driven by a second synchronous gear and a second synchronous toothed belt. The outer surface of the annular mesh belt is fixedly sleeved with a transmission toothed belt, and the bottom of the first rotating shaft is concentrically fixed with a second gear meshing with the transmission toothed belt, and the bottom of the bottom support plate is fixedly provided with a gear differential, the input end of the gear differential is coaxially arranged with the column, and the input end of the gear differential is fixedly connected to the liquid accumulation barrel, the output end of the gear differential is distributed on the outside of the bottom support plate, and the output end of the gear differential is fixedly provided with a first gear meshing with the transmission toothed belt, and the gear differential has a deceleration effect, that is, when the input end of the gear differential rotates at a high speed, the output end of the gear differential rotates with the first gear at a slower speed.

[0021] Preferably, a detachable material receiving box is provided at the bottom of the bottom support plate, the material receiving box is located below the discharge hole, and the material receiving box is used to receive the sediment discharged from the discharge hole.

[0022] Preferably, a protective cover is fixedly provided on the top of the mixing barrel, and the protective cover covers the top of the column and the outside of the motor, the optical axis slides through the protective cover, a plurality of second through holes equidistantly distributed in a circle are provided on the top outer surface of the column, a plurality of wind blades equidistantly distributed in a circle are fixedly provided on the top outer surface of the column, and the wind blades are distributed above the second through holes, a plurality of first through holes are provided on the top of the protective cover, and the first through holes are located directly above the column.

[0023] Preferably, the motor drives the column to rotate unidirectionally, so that the wind blades suck the upper layer of air inside the protective cover and transport it to the lower layer.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention can automatically transport a mixed solution of konjac glucomannan solution and ethanol to the inside of a centrifugal separation unit through a feeding unit, and under the action of the centrifugal separation unit, liquid in the mixed solution is discharged, and precipitates are left in the inside of the centrifugal separation unit. Then, through the action of a precipitate collecting unit, the precipitates in the centrifugal separation unit are automatically collected and processed, and there is no need for staff to take out the precipitates in the centrifugal separation unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a cross-sectional view of the liquid storage barrel of the present invention;

[0028] Figure 3 It is a schematic diagram of the gear differential and the material receiving box structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the bypass pipe structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the arc-shaped column shell and the spiral conveying blade of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the discharge hole and the arc-shaped extension part of the present invention;

[0032] Figure 7 This is a schematic diagram of the internal structure of the protective cover of the present invention;

[0033] Figure 8 This is a schematic diagram of the stirring rod and the through groove structure of the present invention;

[0034] Fig. 9 This is a schematic diagram of the wind blade and the second through hole structure of the present invention;

[0035] Fig.10 For the present invention Fig. 9 Enlarged view of point A in the middle.

[0036] In the figure: 1. mounting frame; 2. liquid accumulation barrel; 3. mixing barrel; 4. bottom support plate; 5. top cover plate; 6. column tube; 7. protective cover; 8. motor; 9. gear differential; 10. receiving box; 11. annular mesh belt; 12. positioning rod; 13. bolt cap; 14. filter paper; 15. transmission toothed belt; 16. first gear; 17. second gear; 18. first rotating shaft; 19. second rotating shaft; 20. arc column shell; 21. spiral conveying blade; 22. discharge hole; 23. arc extension; 24. stirring rod; 25. through groove; 26. hollow plunger; 27. optical axis; 28. spring; 29. ​​connecting plate; 30. cylinder push rod; 31. first through hole; 32. wind blade; 33. second through hole; 34. bypass pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-Figure 4 , Figure 7-10, an ethanol precipitation and separation device based on the preparation process of konjac glucomannan oligosaccharide shown in the figure comprises: a mounting frame 1, and a liquid accumulation barrel 2 and a mixing barrel 3 fixedly mounted on the mounting frame 1, the mixing barrel 3 is located above the liquid accumulation barrel 2, and the liquid accumulation barrel 2 and the mixing barrel 3 are concentrically distributed, the top of the liquid accumulation barrel 2 is open, and the top of the mixing barrel 3 is closed, the side wall of the liquid accumulation barrel 2 is provided with an openable and closable arc door, the top of the mixing barrel 3 is embedded with a detachable closing cover, the mixing barrel 3 is used to hold a mixed solution of konjac glucomannan solution and ethanol, and the liquid accumulation barrel 2 is used to receive the supernatant after the mixed solution is precipitated;

[0039] A centrifugal separation unit is used to separate solids and liquids in the mixed solution, and the centrifugal separation unit is located inside the liquid accumulation barrel 2;

[0040] The feeding unit is used to add the mixed solution into the interior of the centrifugal separation unit. The feeding unit is located between the mixing barrel 3 and the centrifugal separation unit.

[0041] The centrifugal separation unit includes a column 6 which is rotatably inserted into the mixing barrel 3. A motor 8 is fixedly mounted on the top of the mixing barrel 3, and a first synchronous gear and a first synchronous toothed belt are used as a transmission assembly between the output end of the motor 8 and the outer surface of the column 6. A plurality of stirring rods 24 which are equidistantly distributed in a circle are also fixedly arranged on the outer surface of the column 6, and the stirring rods 24 are evenly distributed in the mixing barrel 3. When the column 6 rotates, the stirring rods 24 can stir the mixed solution in the mixing barrel 3, thereby improving the mixing effect of the konjac glucomannan solution and ethanol, and allowing the mixed solution to quickly produce precipitates. The mixing barrel 3 can be made of transparent acrylic material or glass material, so that the staff can observe the state of the mixed solution in the mixing barrel 3. A bottom support plate 4 is fixedly mounted on the outer surface of the bottom of the column 6, and the outer surface of the column 6 is also The sliding sleeve is provided with a top cover plate 5, and the top cover plate 5 is located above the bottom support plate 4. A plurality of positioning rods 12 are fixedly provided on the outer surface of the bottom support plate 4, and the top of the positioning rod 12 slides through the top cover plate 5. A bolt nut 13 is also threadedly assembled on the top of each positioning rod 12. The position of the bottom support plate 4 and the top cover plate 5 can be fixed by threading the bolt nut 13 with the positioning rod 12. An annular mesh belt 11 is slidably installed between the bottom support plate 4 and the top cover plate 5, and a filter paper 14 is fixedly attached to the inner wall of the annular mesh belt 11. The annular mesh belt 11 is made of nylon and has good flexibility. The annular mesh belt 11 can also be made of plastic material with good flexibility and resilience. The bottom support plate 4 and the top cover plate 5 are both rounded rectangles. The rounded rectangular shape of the bottom support plate 4 and the top cover plate 5 is to facilitate the annular mesh belt 11 to slide with the filter paper 14 between the two.

[0042] The feeding unit includes a through groove 25 opened on the outer surface of the column 6, and the through groove 25 is located on the inner side of the mixing barrel 3, the lower end surface of the through groove 25 is coplanar with the inner bottom surface of the mixing barrel 3, and a hollow plunger 26 is slidably mounted inside the column 6, and the hollow plunger 26 and the through groove 25 play a sealing role. An optical axis 27 is fixedly arranged inside the hollow plunger 26, and the top of the optical axis 27 slides through the column 6, and a connecting plate 29 is rotatably arranged on the outer surface of the top of the optical axis 27. The optical axis 27 and the connecting plate 29 are connected by a bearing. A cylinder push rod 30 is also fixedly mounted on the top of the mixing barrel 3, and the output end of the cylinder push rod 30 carries a connecting rod. The connecting plate 29 moves up and down, and two symmetrically distributed bypass pipes 34 are fixedly provided on the outer surface of the column barrel 6, and the interior of the bypass pipe 34 is communicated with the inner bottom of the column barrel 6, and the bypass pipe 34 is located between the bottom support plate 4 and the top cover plate 5, and the bypass pipe 34 is inclined downward at one end away from the column barrel 6. When the hollow plunger 26 is in the initial state, it can effectively seal the through groove 25, so that the mixed solution inside the mixing barrel 3 cannot enter the interior of the column barrel 6 through the through groove 25, and when the hollow plunger 26 is moved upward under the action of the optical axis 27, the hollow plunger 26 cannot seal the through groove 25.

[0043] A protective cover 7 is also fixedly provided on the top of the mixing barrel 3, and the protective cover 7 covers the top of the column barrel 6 and the outside of the motor 8. The optical axis 27 slides through the protective cover 7. A plurality of second through holes 33 equidistantly distributed in a circle are provided on the top outer surface of the column barrel 6. A plurality of wind blades 32 equidistantly distributed in a circle are also fixedly provided on the top outer surface of the column barrel 6, and the wind blades 32 are distributed above the second through holes 33. A plurality of first through holes 31 are provided on the top of the protective cover 7, and the first through holes 31 are located directly above the column barrel 6. The protective cover 7 protects the top of the column barrel 6 and the motor 8, and can also prevent the staff from accidentally touching the rotating wind blades 32.

[0044] The motor 8 drives the column 6 to rotate unidirectionally, so that the wind blades 32 suck the upper air inside the protective cover 7 and transport it to the lower layer. When the column 6 rotates at high speed with the wind blades 32, it can suck the outside air into the inside of the protective cover 7 through the first through hole 31, and transport the high-speed airflow to the bottom of the column 6 through the second through hole 33 and the hollow plunger 26. When the airflow flows rapidly inside the column 6, the air pressure inside the column 6 will be reduced, and the air pressure inside the mixing barrel 3 is higher than the air pressure inside the column 6, thereby forming a pressure difference, which can allow the mixed solution inside the mixing barrel 3 to quickly enter the inside of the column 6 through the through groove 25 and be discharged downward.

[0045] Example 2: Please refer to the attached Figure 7 and Figure 8This embodiment is a further implementation of the above-mentioned embodiment 1. A pressure sensor is fixedly arranged between the output end of the cylinder push rod 30 and the connecting plate 29. The output end of the cylinder push rod 30 moves up and down with the connecting plate 29 through the pressure sensor. A spring 28 is also fixedly arranged between the top of the hollow plunger 26 and the cylinder push rod 30. When the optical axis 27 moves upward, the greater the elastic pressure applied to the pressure sensor, the fixed installation end and the force sensing end of the pressure sensor are respectively fixed to the output end of the cylinder push rod 30 and the end face of the connecting plate 29. A speed control module is also arranged between the pressure sensor and the motor 8. When the speed control module increases the pressure applied to the pressure sensor, the speed of the motor 8 is increased at the same time.

[0046] The speed control module includes an analog-to-digital converter, and the analog voltage output by the pressure sensor is V sensor , after conversion by analog-to-digital converter, the value P is obtained adc The number of bits of the analog-to-digital converter is n, and the reference voltage is V ref ;

[0047] P adc The calculation formula is:

[0048] The minimum and maximum values ​​of the pressure sensor output are P min , P max , the speed of the motor 8 is S, and the minimum speed and maximum speed of the motor 8 are S min , S max , the pressure on the pressure sensor is linearly related to the speed S of the motor 8, and the linear slope is k,

[0049] According to the point-slope equation: y-y1=k(x-x1), where y is the speed S, and x is the value P obtained by the pressure sensor after conversion by the analog-to-digital converter. adc , x1=P min ,y1=S min ;

[0050] It can be deduced that: S = S min +k×(P adc -P min );

[0051] Substituting k into the above formula, we get:

[0052] When the pressure sensor is subjected to a large pressure, the output analog voltage V sensor The value of will increase, so that P adc The value of k and S increases. minThe value of is constant, so the speed S of the motor 8 will increase, so that when the pressure sensor is subjected to a greater pressure, the output speed of the motor 8 can be greater. The analog-to-digital converter is an analog-to-digital converter in the prior art, namely an A / D converter, or ADC for short, which usually refers to an electronic component that converts an analog signal into a digital signal.

[0053] Example 3: Please refer to the attached Figure 3-Figure 6 This embodiment is a further explanation of the first embodiment. The number of sediment collection units is two, and they are equidistantly distributed between the bottom support plate 4 and the top cover plate 5. The two equidistantly distributed sediment collection units can ensure the balance of the bottom support plate 4 and the top cover plate 5 under high-speed rotation. The sediment collection unit includes a discharge hole 22 opened at the bottom of the bottom support plate 4, and an arc-shaped column shell 20 is fixedly provided on the upper end surface of the bottom support plate 4. The inner diameter of the discharge hole 22 is consistent with the inner diameter of the arc-shaped column shell 20. An arc-shaped extension portion 23 is fixedly provided at one end of the arc-shaped column shell 20 close to the filter paper 14, and the end of the arc-shaped extension portion 23 away from the arc-shaped column shell 20 is tangent to the filter paper 14 in a sliding manner. The arc-shaped extension portion 23 is tangent to the filter paper 14. The portion where the arc-shaped extension 23 is tangent to the filter paper 14 is provided with an oblique chamfer, that is, the arc-shaped extension 23 can scrape the sediment adhered to the surface of the filter paper 14 like a shovel. The second rotating shaft 19 is rotatably provided inside the top cover plate 5, and the second rotating shaft 19 extends into the interior of the arc-shaped column shell 20 and the discharge hole 22. The second rotating shaft 19, the arc-shaped column shell 20 and the discharge hole 22 are all coaxially distributed. The outer surface of the second rotating shaft 19 is fixedly provided with a spiral conveying blade 21, and the spiral conveying blade 21 is distributed inside the arc-shaped column shell 20. The difference between the outer diameter of the spiral conveying blade 21 and the inner diameter of the arc-shaped column shell 20 is 0-1mm. The outside of the second rotating shaft 19 is also provided with a transmission component to attach Figure 6 For example, under the action of the transmission component, the annular mesh belt 11 can move counterclockwise with the filter paper 14. During the movement, due to the tangency between the filter paper 14 and the arc-shaped extension part 23, the arc-shaped extension part 23 can scrape and collect the sediment attached to the surface of the filter paper 14.

[0054] The transmission component includes a first rotating shaft 18 rotatably mounted on the outer edge of the top cover plate 5, and the first rotating shaft 18 and the second rotating shaft 19 are assembled for transmission through a second synchronous gear and a second synchronous toothed belt. The outer surface of the annular mesh belt 11 is fixedly sleeved with a transmission toothed belt 15, and the bottom of the first rotating shaft 18 is concentrically fixedly provided with a second gear 17 meshing with the transmission toothed belt 15. The bottom of the bottom support plate 4 is fixedly provided with a gear differential 9, and the input end of the gear differential 9 is coaxially arranged with the column 6, and the input end of the gear differential 9 is fixed with the liquid accumulation bucket 2. The output end of the gear differential 9 is distributed on the outside of the bottom support plate 4, and the output end of the gear differential 9 is fixedly provided with a first gear 16 meshing with the transmission toothed belt 15. The gear differential 9 has a deceleration effect, that is, when the input end of the gear differential 9 rotates at a high speed, the output end of the gear differential 9 rotates with the first gear 16 at a slower speed. When the first gear 16 rotates, it can move between the bottom support plate 4 and the top cover plate 5 with the annular mesh belt 11 and the filter paper 14 at a slow transmission speed through the meshing with the transmission toothed belt 15.

[0055] A detachable material receiving box 10 is provided at the bottom of the bottom support plate 4. The material receiving box 10 is located below the discharge hole 22 and is used to receive the sediment discharged from the discharge hole 22. The disassembly and assembly method of the bottom support plate 4 and the material receiving box 10 can be a snap-on type or a bolt-fixed type.

[0056] Working principle: after opening the closing cover on the top of the mixing barrel 3, a certain proportion of konjac glucomannan solution and ethanol are added into the interior of the mixing barrel 3, and then the closing cover is reassembled with the mixing barrel 3, and the situation inside the mixing barrel 3 can be observed through the transparent material of the mixing barrel 3, and then the motor 8 is started, and the motor 8 drives the column 6 to rotate, and the column 6 can stir the mixed solution inside the mixing barrel 3 with the stirring rod 24, so that the konjac glucomannan solution and ethanol are fully mixed to precipitate a precipitate, and after a certain reaction time, the mixed solution with the precipitate can be discharged between the bottom support plate 4 and the top cover plate 5 through the column 6;

[0057] During the discharge process, the connecting plate 29 is pushed upward by the cylinder push rod 30, and the hollow plunger 26 can be moved upward through the optical axis 27, thereby releasing the through groove 25, and the mixed solution can enter the interior of the column 6 through the through groove 25, and finally be discharged along the bypass pipe 34. When the output end of the cylinder push rod 30 pushes the connecting plate 29 upward, the greater the pushing distance, the greater the elastic pressure applied by the spring 28, thereby increasing the output speed of the motor 8, and the rotation speed of the column 6 with the bottom support plate 4 and the top cover plate 5 can be increased. After the rotation speed of the bottom support plate 4 and the top cover plate 5 increases, the centrifugal force on the mixed solution inside the two can be increased. Under the action of the centrifugal force, the liquid in the mixed solution will be filtered out by the filter paper 14, and the precipitate will adhere to the surface of the filter paper 14, thereby achieving effective separation of the precipitate;

[0058] When the gear differential 9 rotates rapidly following the bottom support plate 4, since the input end of the gear differential 9 is fixed to the liquid accumulation barrel 2, its output end can be driven by the first gear 16 meshing with the transmission belt 15, so that the annular mesh belt 11 can move with the filter paper 14, and the arc-shaped extension portion 23 can scrape and collect the sediment adhering to the surface of the filter paper 14, and gather it inside the arc-shaped column shell 20. Since the second rotating shaft 19 rotates with the spiral conveying blade 21 at the same time, the spiral conveying blade 21 can convey the gathered sediment through the discharge hole 22 to the inside of the receiving box 10. In this way, the sediment on the surface of the filter paper 14 can be automatically collected, and the accumulation of a large amount of sediment on the surface of the filter paper 14 can be avoided, thereby reducing the filtering effect of the filter paper 14.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharide, characterized in that: include: A mounting frame (1), and a liquid accumulation barrel (2) and a mixing barrel (3) fixedly mounted on the mounting frame (1), wherein the mixing barrel (3) is located above the liquid accumulation barrel (2), the top of the liquid accumulation barrel (2) is open, and the top of the mixing barrel (3) is closed, the mixing barrel (3) is used to hold a mixed solution of konjac glucomannan solution and ethanol, and the liquid accumulation barrel (2) is used to receive a supernatant after the mixed solution is precipitated; A centrifugal separation unit, used for separating solids and liquids in the mixed solution, wherein the centrifugal separation unit is located inside the liquid accumulation barrel (2); A feeding unit, used for adding the mixed solution into the interior of the centrifugal separation unit, wherein the feeding unit is located between the mixing barrel (3) and the centrifugal separation unit; The sediment collection unit automatically collects and processes the solid sediment in the centrifugal separation unit.

2. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharides according to claim 1, characterized in that: The centrifugal separation unit comprises a column (6) which is rotatably inserted into the mixing barrel (3); a motor (8) is fixedly mounted on the top of the mixing barrel (3); a transmission assembly is provided between the output end of the motor (8) and the outer surface of the column (6); a plurality of stirring rods (24) are fixedly arranged on the outer surface of the column (6); and the stirring rods (24) are distributed inside the mixing barrel (3); a bottom support plate (4) is fixedly mounted on the outer surface of the bottom of the column (6); and the outer surface of the column (6) is provided with a plurality of stirring rods (24). A top cover plate (5) is also slidably sleeved on the surface, and the top cover plate (5) is located above the bottom support plate (4). A plurality of positioning rods (12) are fixedly arranged on the outer surface of the bottom support plate (4), and the top of the positioning rod (12) slides through the top cover plate (5). A bolt nut (13) is also threadedly assembled on the top of each positioning rod (12). An annular mesh belt (11) is slidably mounted between the bottom support plate (4) and the top cover plate (5), and a filter paper (14) is fixedly attached to the inner wall of the annular mesh belt (11).

3. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharides according to claim 2, characterized in that: The feeding unit comprises a through groove (25) provided on the outer surface of the column (6), and the through groove (25) is located on the inner side of the mixing barrel (3); a hollow plunger (26) is slidably mounted inside the column (6); an optical axis (27) is fixedly arranged inside the hollow plunger (26), and the top of the optical axis (27) slides through the column (6); a connecting plate (29) is rotatably arranged on the outer surface of the top of the optical axis (27); a cylinder push rod (30) is also fixedly mounted on the top of the mixing barrel (3), and the output end of the cylinder push rod (30) moves up and down with the connecting plate (29); two symmetrically distributed bypass pipes (34) are also fixedly arranged on the outer surface of the column (6), and the interior of the bypass pipe (34) is communicated with the inner bottom of the column (6).

4. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharides according to claim 3, characterized in that: A pressure sensor is fixedly arranged between the output end of the cylinder push rod (30) and the connecting plate (29), and a spring (28) is also fixedly arranged between the top of the hollow plunger (26) and the cylinder push rod (30). When the optical axis (27) moves upward, the elastic pressure applied to the pressure sensor becomes greater. A speed control module is also arranged between the pressure sensor and the motor (8). When the speed control module increases the pressure applied to the pressure sensor, the speed of the motor (8) is increased at the same time.

5. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharides according to claim 4, characterized in that: The speed control module includes an analog-to-digital converter, and the analog voltage output by the pressure sensor is V sensor , after conversion by the analog-to-digital converter, the value P is obtained adc The number of bits of the analog-to-digital converter is n, and the reference voltage is V ref ; The P adc The calculation formula is: The minimum and maximum values ​​output by the pressure sensor are P min , P max , the speed of the motor (8) is S, and the minimum speed and maximum speed of the motor (8) are S respectively. min , S max , the pressure applied to the pressure sensor is linearly related to the rotation speed S of the motor (8), and the linear slope is k, According to the point-slope equation, we can deduce that: S = S min +k×(P adc -P min ); Substituting k into the above formula, we get:

6. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharides according to claim 4, characterized in that: The sediment collection unit comprises a discharge hole (22) opened at the bottom of the bottom support plate (4), and an arc-shaped column shell (20) is fixedly provided on the upper end surface of the bottom support plate (4), an arc-shaped extension portion (23) is fixedly provided at one end of the arc-shaped column shell (20) close to the filter paper (14), and an end of the arc-shaped extension portion (23) away from the arc-shaped column shell (20) is slidably tangent to the filter paper (14), and a second rotating shaft (12) is provided inside the top cover plate (5) for rotation. 9), and the second rotating shaft (19) extends into the interior of the arc-shaped column shell (20) and the discharge hole (22), the outer surface of the second rotating shaft (19) is fixedly provided with a spiral conveying blade (21), and the spiral conveying blade (21) is distributed inside the arc-shaped column shell (20), the difference between the outer diameter of the spiral conveying blade (21) and the inner diameter of the arc-shaped column shell (20) is 0-1mm, and a transmission component is also provided on the outside of the second rotating shaft (19).

7. An ethanol precipitation separation device based on a preparation process of konjac glucomannan oligosaccharides according to claim 6, characterized in that: The transmission component comprises a first rotating shaft (18) rotatably mounted on the outer edge of the top cover plate (5), and a transmission assembly is provided between the first rotating shaft (18) and the second rotating shaft (19), a transmission toothed belt (15) is fixedly sleeved on the outer surface of the annular mesh belt (11), a second gear (17) meshing with the transmission toothed belt (15) is fixedly arranged at the bottom of the first rotating shaft (18), a gear differential (9) is fixedly arranged at the bottom of the bottom support plate (4), an input end of the gear differential (9) is coaxially arranged with the column (6), and the input end of the gear differential (9) is fixedly connected with the liquid accumulation barrel (2), an output end of the gear differential (9) is distributed on the outer side of the bottom support plate (4), and a first gear (16) meshing with the transmission toothed belt (15) is fixedly arranged at the output end of the gear differential (9).

8. An ethanol precipitation separation device based on the preparation process of konjac glucomannan oligosaccharide according to claim 7, characterized in that: A detachable material receiving box (10) is provided at the bottom of the bottom support plate (4); the material receiving box (10) is located below the material discharge hole (22), and the material receiving box (10) is used to receive sediment discharged from the material discharge hole (22).

9. An ethanol precipitation separation device based on the preparation process of konjac glucomannan oligosaccharide according to claim 8, characterized in that: A protective cover (7) is fixedly provided on the top of the mixing barrel (3), and the protective cover (7) covers the top of the column (6) and the outside of the motor (8), the optical axis (27) slides through the protective cover (7), a plurality of second through holes (33) are provided on the top outer surface of the column (6), a plurality of wind blades (32) equidistantly distributed in a circumference are fixedly provided on the top outer surface of the column (6), and the wind blades (32) are distributed above the second through holes (33), and a plurality of first through holes (31) are provided on the top of the protective cover (7).

10. The ethanol precipitation separation device based on the preparation process of konjac glucomannan oligosaccharide according to claim 9, characterized in that: The motor (8) drives the column (6) to rotate in one direction, so that the wind blades (32) suck the upper layer of air inside the protective cover (7) and transport it to the lower layer.

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