A refining device for purifying fatty acids

Abstract

This invention relates to the field of fatty acid refining technology and discloses a refining apparatus for fatty acid purification. The apparatus includes a distillation vessel body that can be mounted on a support. A stirring motor is fixedly mounted on the top of the distillation vessel body, and a shaft is fixedly mounted on the output end of the stirring motor. The bottom end of the shaft extends to the bottom of the inner cavity of the distillation vessel body. Several stirring blades are mounted along the axis of the shaft on its outer wall. An adjusting assembly is provided at the bottom end of the shaft. The adjusting assembly includes a fixed seat symmetrically welded to the bottom end of the shaft, and an adjusting disc is slidably connected to the outside of the fixed seat. This refining apparatus for fatty acid purification changes the centrifugal force by controlling the rotation speed of the stirring motor, thereby changing the position of the two adjusting discs and adjusting the stirring range at the bottom of the liquid in the distillation vessel body. It also changes the sealing state of the flexible seal at the bottom opening of the distillation vessel body, facilitating subsequent residue collection.

Description

Technical Field

[0001] This invention relates to the field of fatty acid refining technology, and more specifically to a refining apparatus for fatty acid purification. Background Technology

[0002] Vacuum distillation is the most common method for refining fatty acids. Its basic principle is to take advantage of the fact that the sublimation point of fatty acids is lower than their boiling point. The fatty acid sample is heated to its boiling temperature, and the components in the fatty acid are distilled off in order of their volatility. Then the vapor is condensed back into liquid. Fatty acids with different melting points are collected at different temperatures, and high-boiling-point impurities (i.e., residues) are separated and finally discharged from the bottom of the distillation vessel.

[0003] Stirring during distillation is necessary to address issues such as uneven material concentration leading to excessive localized concentrations or uneven heating, which can cause side reactions. Traditional distillation kettles are typically integrated with the motor's output shaft and are fixed structures. This results in a limited stirring range, making it impossible to adjust the stirring range at the bottom of the liquid as needed. This can easily lead to localized overheating and excessive temperature gradients. Summary of the Invention

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a refining device for fatty acid purification, which can effectively solve the problems in the prior art where the stirrer is mostly a fixed structure, the stirring range is limited, the stirring range at the bottom of the liquid cannot be adjusted as needed, and the phenomenon of local overheating and excessive temperature gradient is easy to occur.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This invention provides a refining apparatus for fatty acid purification, comprising a distillation vessel body that can be mounted on a support, a stirring motor fixedly mounted on the top of the distillation vessel body, a shaft fixedly mounted on the output end of the stirring motor, the bottom end of the shaft extending to the bottom of the inner cavity of the distillation vessel body, a plurality of stirring blades mounted on the outer wall of the shaft along its axis, and an adjustment component provided at the bottom end of the shaft;

[0009] The adjustment assembly includes a fixed seat symmetrically welded to the bottom of the shaft. An adjustment plate is slidably connected to the outside of the fixed seat. An anchor-type stirring paddle is fixedly installed on the top of each adjustment plate. The adjustment plate is C-shaped and the radius of the adjustment plate is larger than the radius of the bottom opening of the distillation vessel. A flexible sealing element is installed at the bottom of each adjustment plate. When two adjustment plates are in contact, they form a complete circle, and the two flexible sealing elements completely cover the bottom opening of the distillation vessel.

[0010] The fixed base has sliding grooves on both sides, and the inner cavity of the adjusting plate is threaded with a moving rod, with one end of the moving rod near the sliding groove extending into the sliding groove.

[0011] Furthermore, the slide includes a parallel section, an upward-sloping section connected to the side of the parallel section away from the shaft, a middle section connected to one side of the upward-sloping section, and the middle section is Y-shaped, and a downward-sloping section connected to one side of the middle section, the depth of the middle section and the downward-sloping section being less than the depth of the upward-sloping section.

[0012] Furthermore, an L-shaped block is fixedly connected to the bottom of the adjusting plate, and there are two L-shaped blocks arranged symmetrically. A high-temperature resistant elastic element is connected to the top of each L-shaped block, and the high-temperature resistant elastic element is located between the L-shaped block and the fixed base. When the adjusting plate is in contact, the top surface of the high-temperature resistant elastic element is in contact with the bottom surface of the fixed base.

[0013] Furthermore, a cavity is provided inside the fixed base, and a cylindrical tension spring is connected between the inner wall of the fixed base and the inner wall of the adjusting plate through a fixing ring. The number of cylindrical tension springs is not less than one set, and the cylindrical tension springs are in a natural state when the two adjusting plates are in contact.

[0014] Furthermore, the inner cavity of the distillation vessel body is provided with a fitting assembly, which includes an annular slide rail formed on the inner wall of the distillation vessel body. A slider is slidably connected inside the annular slide rail, and the slider consists of two symmetrically arranged sliders. A cleaning scraper is fixedly installed on the outer wall of the slider, and the outer wall of the cleaning scraper is in contact with the inner wall of the distillation vessel body.

[0015] Furthermore, a rotating disk is rotatably installed at the bottom of the inner cavity of the distillation vessel, and the bottoms of the two cleaning scrapers are fixedly connected to the top of the rotating disk. A high-temperature resistant rubber ring is installed on the inner side of the rotating disk.

[0016] Furthermore, a receiving assembly is provided at the bottom of the distillation vessel body. The receiving assembly includes a connecting ring welded to the outer wall of the bottom of the distillation vessel body. A collection bucket for receiving residue is installed on the inner side of the connecting ring. An installation groove is provided on the wall of the connecting ring. The installation groove is inverted "L" shape, and the bottom opening of the installation groove communicates with the outside. A short rod is welded to the outer wall of the collection bucket.

[0017] Furthermore, an actuating ring is rotatably mounted on the outer wall of the collection bucket, and the actuating ring is located at the bottom of the short rod. A pushing block is welded to the top of the actuating ring, and a fixing block is integrally connected to the bottom of the connecting ring. A bucket body seal is installed on the collection bucket.

[0018] Furthermore, the barrel sealing component includes a column fixedly installed inside the collection barrel, with the column and the collection barrel on the same axis. Several rotating rods are arranged in a circular array on the wall of the column, and fan blades are installed on the outer wall of the rotating rods. Sealing strips are installed on the outer wall of the fan blades.

[0019] Furthermore, the end of the rotating rod away from the column is movably inserted through the wall of the collection bucket, and a drive ring is fixedly sleeved on this end of the rotating rod. Several drive rods are arranged in a circular array at the bottom of the actuating ring, and the number of drive rods is the same as that of the rotating rod. The rod body of the drive rod extends into the drive ring.

[0020] Beneficial effects

[0021] The technical solution provided by this invention has the following advantages compared with the prior art:

[0022] In this invention, during distillation, some components of fatty acids have low boiling points and easily accumulate at the bottom. An anchor-type stirring paddle agitates the material at the bottom of the vessel, accelerating vaporization and improving separation efficiency. Simultaneously, controlling the speed of the stirring motor alters the centrifugal force, changing the positions of the two adjusting discs. This adjusts the stirring range at the bottom of the liquid within the distillation vessel and changes the sealing state of the flexible seal at the bottom opening of the vessel, facilitating subsequent residue collection. To prevent the adjusting discs from wobbling significantly during movement and hindering stable linear motion, the top surface of a high-temperature resistant elastic element remains in constant contact with the bottom surface of the fixed base, significantly reducing or eliminating wobbling during linear movement. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the distillation vessel body according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the fixing base according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the adjusting disc according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the high-temperature resistant elastic component according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure when the moving rod moves to the bottom of the middle section according to an embodiment of the present invention;

[0030] Figure 7 This is an embodiment of the present invention. Figure 2 A magnified structural diagram of part A in the middle;

[0031] Figure 8 This is a schematic diagram of the mounting slot structure according to an embodiment of the present invention;

[0032] Figure 9 This is an embodiment of the present invention. Figure 6 A magnified structural diagram of section B in the middle;

[0033] Figure 10 This is a schematic diagram of the structure of several fan blades when unfolded according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the structure when several fan blades are closed according to an embodiment of the present invention.

[0035] The labels in the diagram represent: 1. Distillation vessel body; 2. Stirring motor; 3. Shaft; 4. Stirring blade; 5. Adjustment assembly; 51. Fixed base; 52. Adjustment disc; 53. Anchor-type stirring paddle; 54. Flexible seal; 55. Slide groove; 551. Parallel section; 552. Upper inclined section; 553. Middle section; 554. Lower inclined section; 56. Moving rod; 57. L-shaped block; 58. High-temperature resistant elastic component; 59. Cylindrical tensile spring. 6. Spring; 7. Matching assembly; 61. Circular slide rail; 62. Slider; 63. Cleaning scraper; 64. Rotating disk; 65. High-temperature resistant rubber ring; 7. Receiving assembly; 71. Connecting ring; 72. Collection bucket; 73. Mounting groove; 74. Actuating ring; 75. Push block; 76. Bucket body seal; 761. Column; 762. Rotating rod; 763. Fan blade; 764. Sealing strip; 765. Drive ring; 766. Drive rod. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The present invention will be further described below with reference to embodiments.

[0038] Example 1, referring to Figure 1-11 The first embodiment of the present invention provides a refining apparatus for fatty acid purification, including a distillation vessel body 1 that can be mounted on a support. A stirring motor 2 is fixedly mounted on the top of the distillation vessel body 1. A shaft 3 is fixedly mounted on the output end of the stirring motor 2. The bottom end of the shaft 3 extends to the bottom of the inner cavity of the distillation vessel body 1. Several stirring blades 4 are mounted on the outer wall of the shaft 3 along its axis. An adjustment component 5 is provided at the bottom end of the shaft 3.

[0039] The adjusting assembly 5 includes a fixed seat 51 symmetrically welded to the bottom end of the shaft 3. An adjusting plate 52 is slidably connected to the outside of the fixed seat 51. An anchor-type stirring paddle 53 is fixedly installed on the top of the adjusting plate 52. The adjusting plate 52 is C-shaped, and the radius of the adjusting plate 52 is larger than the radius of the bottom opening of the distillation vessel body 1. A flexible sealing element 54 is installed at the bottom of the adjusting plate 52. When the two adjusting plates 52 are in contact, they form a complete circle, and the two flexible sealing elements 54 completely cover the bottom opening of the distillation vessel body 1.

[0040] Both sides of the fixed base 51 are provided with sliding grooves 55, and the inner cavity of the adjusting plate 52 is threaded with a moving rod 56, with one end of the moving rod 56 near the sliding groove 55 extending into the sliding groove 55.

[0041] Specifically, the flexible seal 54 can be made of flexible graphite packing material. The flexible graphite packing is made of flexible graphite composite roll material, which gives the flexible seal 54 the characteristics of high temperature resistance, strong acid and strong alkali resistance and long service life when distilling fatty acids.

[0042] Specifically, during the distillation process, some components of fatty acids have low boiling points and easily accumulate at the bottom. The anchor-type stirring paddle 53 stirs the material at the bottom of the vessel, accelerating the vaporization rate and improving the separation effect. By controlling the speed of the stirring motor 2 to change the magnitude of the centrifugal force, the positions of the two adjusting discs 52 are changed, thereby adjusting the stirring range at the bottom of the liquid in the distillation vessel 1 and changing the sealing state of the flexible sealing element 54 at the bottom opening of the distillation vessel 1, which facilitates the subsequent collection of residues.

[0043] Specifically, the conversion formula between centrifugal force F and stirring motor speed 2 RPM is as follows:

[0044] F = 1.11 x 10^(-5) × R × (rpm)^2, where R is the centrifugal radius. In centrifugal separation operation, under the same conditions, the faster the stirring motor 2 rotates at RPM, the greater the centrifugal force F, and the better the separation effect.

[0045] Reference Figure 3The slide 55 includes a parallel section 551. The side of the parallel section 551 away from the shaft 3 is connected to an upward inclined section 552. The side of the upward inclined section 552 is connected to a middle section 553, which is Y-shaped. The side of the middle section 553 is connected to a downward inclined section 554. The depths of the middle section 553 and the downward inclined section 554 are both less than the depth of the upward inclined section 552.

[0046] Specifically, as the stirring motor 2 drives the shaft 3 to start rotating and accelerating, the moving rod 56 moves from the parallel section 551 to the bottom of the upward tilting section 552, and then moves into the middle section 553. When the speed of the stirring motor 2 stabilizes, the moving rod 56 falls into the bottom of the middle section 553. At this time, the two adjusting discs 52 have moved away from each other to the first unfolded state, which increases the stirring range of the bottom of the liquid in the distillation vessel 1. The flexible seal 54 also moves upward away from the bottom opening of the distillation vessel 1, so that the residue during distillation falls to the bottom of the distillation vessel 1.

[0047] Reference Figure 4 and Figure 5 The bottom of the adjusting plate 52 is fixedly connected to an L-shaped block 57, and there are two L-shaped blocks 57 arranged symmetrically. The top of each L-shaped block 57 is connected to a high-temperature resistant elastic element 58, and the high-temperature resistant elastic element 58 is located between the L-shaped block 57 and the fixed base 51. When the adjusting plate 52 is in contact, the top surface of the high-temperature resistant elastic element 58 is in contact with the bottom surface of the fixed base 51.

[0048] Specifically, the high-temperature resistant elastic element 58 can be a long strip of high-temperature resistant elastic plate.

[0049] Specifically, to prevent the adjusting disc 52 from swaying up and down significantly during the movement of the moving rod 56, thus preventing it from moving stably and linearly, the top surface of the high-temperature resistant elastic element 58 is always in contact with the bottom surface of the fixed base 51, which greatly reduces or prevents the swaying of the adjusting disc 52 during linear movement. When the adjusting disc 52 and the moving rod 56 move due to the centrifugal force generated by the rotation of the shaft rod 3, the adjusting disc 52 cannot deflect to either side under the limitation of the fixed base 51. The high-temperature resistant elastic element 58 moves with the adjusting disc 52 and restricts the irregular up and down swaying of the adjusting disc 52, so that the adjusting disc 52 maintains stable linear movement. Furthermore, the high-temperature resistant elastic element 58 is compressed when it comes into contact with the outer wall of the fixed base 51.

[0050] Reference Figure 3 and Figure 6 The fixed base 51 has a cavity. A cylindrical tension spring 59 is connected between the inner wall of the fixed base 51 and the inner wall of the adjusting plate 52 through a fixing ring. The number of cylindrical tension springs 59 is not less than one set. When the two adjusting plates 52 are in contact, the cylindrical tension springs 59 are in a natural state.

[0051] Specifically, the cylindrical tension spring 59 is a high-temperature resistant spring and can be made of materials such as CrSi and CrV.

[0052] Specifically, during the fatty acid distillation process, the pressure inside the distillation vessel 1 changes with the boiling point differences of different components. After the fatty acid distillation separation is completed, the pressure inside the distillation vessel 1 will be lower than atmospheric pressure. If the slag is discharged directly without vacuum sealing the distillation vessel 1, the vessel will be suddenly exposed to a low-temperature environment, resulting in uneven thermal stress and cooling contraction at the bottom of the vessel, which may easily lead to deformation and cracking of the bottom of the distillation vessel 1. To ensure safety, vacuum sealing must be performed after the distillation separation is completed to eliminate the influence of internal pressure and external environment. When the two adjusting discs 52 are far apart, the cylindrical tension spring 59 is stretched, which facilitates the subsequent deceleration of the stirring motor 2, and the two adjusting discs 52 are brought into contact and sealed with the flexible sealing element 54.

[0053] Example 2, refer to Figure 1-7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the inner cavity of the distillation vessel body 1 is provided with a mating component 6. The mating component 6 includes an annular slide rail 61 formed on the inner wall of the distillation vessel body 1. A slider 62 is slidably connected in the annular slide rail 61, and there are two sliders 62 arranged symmetrically. A cleaning scraper 63 is fixedly installed on the outer wall of the slider 62, and the outer wall of the cleaning scraper 63 is in contact with the inner wall of the distillation vessel body 1. The two cleaning scrapers 63 are connected by a connecting rod, and the middle part of the connecting rod is rotatably connected to the shaft 3, which improves the stability of the shaft 3 when it rotates.

[0054] Specifically, during the fatty acid distillation process, high-boiling-point impurities usually form a thin film on the inner wall of the distillation vessel 1. After distillation, the distillation vessel 1 needs to be cleaned and maintained. Two opposing cleaning scrapers 63 and a slider 62 rotating along the axis of the shaft 3 on the annular slide rail 61 can help remove high-boiling-point impurities from the inner wall of the distillation vessel 1, ensuring the stability and consistency of subsequent production. If these residues are not removed in time, they may accumulate on the inner wall with each production cycle, ultimately affecting the purity and quality of the product.

[0055] Reference Figure 6 A rotating disk 64 is rotatably installed at the bottom of the inner cavity of the distillation vessel body 1, and the bottoms of the two cleaning scrapers 63 are fixedly connected to the top of the rotating disk 64. A high-temperature resistant rubber ring 65 is installed on the inner side of the rotating disk 64. When the two adjusting disks 52 are separated to the farthest distance, the side walls of the adjusting disks 52 are in contact with the inner wall of the high-temperature resistant rubber ring 65.

[0056] Specifically, the high-temperature resistant rubber ring 65 can be made of borosilicate rubber, which has good heat resistance and can work for a long time at 400 degrees Celsius.

[0057] Specifically, as the speed of the stirring motor 2 further increases, the moving rod 56 disengages from the bottom of the middle section 553 and moves to the bottom of the downward-sloping section 554. At this time, when the two adjusting discs 52 are separated to the farthest distance and in the second unfolded state, the side walls of the adjusting discs 52 are in contact with the inner wall of the high-temperature resistant rubber ring 65. The adjusting discs 52 drive the high-temperature resistant rubber ring 65 to rotate through static friction, so that the two cleaning scrapers 63 remove the residue on the inner wall of the distillation vessel body 1. After the residue is removed, the speed of the stirring motor 2 is reduced. When the centrifugal force is less than the total elastic force of the cylindrical tension spring 59, under the combined action of the cylindrical tension spring 59, the moving rod 56 moves obliquely upward from the bottom of the downward-sloping section 554, then slides into the middle section 553, and then slides directly to the top of the upward-sloping section 552. Then it moves obliquely downward into the parallel section 551, and the flexible sealing element 54 is reset to seal the bottom opening of the distillation vessel body 1.

[0058] The remaining structure is the same as that in Example 1.

[0059] Example 3, referring to Figure 1-10 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that a receiving component 7 is provided at the bottom of the distillation vessel body 1. The receiving component 7 includes a connecting ring 71 welded to the outer wall of the bottom of the distillation vessel body 1. A collection bucket 72 for receiving residue is installed on the inner side of the connecting ring 71. An installation groove 73 is provided on the wall of the connecting ring 71. The installation groove 73 is inverted "L" shape and the bottom opening of the installation groove 73 communicates with the outside. A short rod is welded to the outer wall of the collection bucket 72.

[0060] Specifically, by inserting the collection bucket 72 into the connecting ring 71, the short rod enters the mounting groove 73 and rotates, so that the collection bucket 72 is connected to the bottom of the distillation vessel body 1, which facilitates the collection of the residue after distillation. A one-way liquid inlet valve is installed on the wall of the collection bucket 72 to lead into the bucket, so that after the residue is collected, coolant can be introduced into the bucket to cool the residue and reduce the irritating odor of the residue (because the residue may still contain unvolatile organic matter), so as to reduce the adverse effects on the external environment and human body.

[0061] Reference Figure 6 and Figure 8 An actuating ring 74 is rotatably mounted on the outer wall of the collection bucket 72, and the actuating ring 74 is located at the bottom of the short rod. A pushing block 75 is welded to the top of the actuating ring 74, and a fixing block is integrally connected to the bottom of the connecting ring 71. A bucket body seal 76 is installed on the collection bucket 72.

[0062] Specifically, after the collection bucket 72 is connected to the bottom of the distillation vessel body 1, the actuating ring 74 is rotated so that the pushing block 75 fits into the fixing block at the bottom of the connecting ring 71, thereby completing the unfolding of the bucket body seal 76, so that the bottom opening of the distillation vessel body 1 can communicate with the bottom of the collection bucket 72.

[0063] Reference Figure 9 , Figure 10 and Figure 11 The barrel sealing component 76 includes a column 761 fixedly installed in the inner cavity of the collection barrel 72, and the column 761 and the collection barrel 72 are on the same axis. Several rotating rods 762 are arranged in a ring array on the wall of the column 761. Fan blades 763 are installed on the outer wall of the rotating rods 762, and sealing strips 764 are installed on the outer wall of the fan blades 763. The end of the rotating rod 762 away from the column 761 moves through the wall of the collection barrel 72, and a drive ring 765 is fixedly sleeved on this end of the rotating rod 762. Several drive rods 766 are arranged in a ring array at the bottom of the actuating ring 74, and the number of drive rods 766 is the same as that of the rotating rods 762. The rod body of the drive rod 766 extends into the drive ring 765.

[0064] Specifically, the top of the column 761 is designed with an arc shape to facilitate material feeding; both the fan blade 763 and the sealing strip 764 can be made of high-temperature resistant flexible sealing material.

[0065] Specifically, after the distillation residue is collected into the collection bucket 72, when the collection bucket 72 needs to be removed, the bucket body is rotated in the opposite direction, causing the short rod to rotate horizontally within the mounting groove 73. This moves the short rod directly above the opening of the mounting groove 73, and several rotating rods 762 rotate horizontally synchronously with the collection bucket 72. At this time, due to the obstruction of the fixed block at the bottom of the connecting ring 71, the pushing block 75 cannot rotate. That is, the positions of the actuating ring 74 and the driving rod 766 relative to the connecting ring 71 do not change. This causes the rotating rods 762 to rotate horizontally while being obstructed by the driving rod 766. As a result, several rotating rods 762 rotate along their own axes, thereby causing several fan blades 763 to rotate. The fan blades 763 overlap in a stepped manner to seal the top opening of the collection bucket 72, preventing a large amount of irritating odor from the residue from escaping to the outside. Then, the short rod is completely removed from the mounting groove 73, and the collection bucket 72 can be removed.

[0066] The remaining structure is the same as that in Example 2.

[0067] Based on embodiments 1-3, the working principle of this invention is as follows: The collection bucket 72 is inserted into the connecting ring 71, causing the short rod to enter the innermost side of the mounting groove 73. The agitator ring 74 is rotated, causing the pushing block 75 to engage with the fixing block at the bottom of the connecting ring 71. Several fan blades 763 rotate and unfold, allowing fatty acid material to be introduced into the distillation vessel 1 for distillation and refining. The speed of the stirring motor 2 is controlled according to the actual situation to change the magnitude of the centrifugal force, causing the positions of the two adjusting discs 52 to change to the first unfolded state. The flexible sealing element 54 first moves upwards with the adjusting disc 52 and then to one side, away from the bottom opening of the distillation vessel 1, allowing residue to fall into the collection bucket 72. When the material distillation is nearing or has already ended, the speed of the stirring motor 2 is further increased, and the two adjusting discs 52... When separated to the second unfolded state, the side wall of the adjusting plate 52 is in contact with the inner wall of the high-temperature resistant rubber ring 65. The adjusting plate 52 drives the high-temperature resistant rubber ring 65 to rotate, so that the two cleaning scrapers 63 remove the residue on the inner wall of the distillation vessel 1, which speeds up the collection of residue. Then the speed of the stirring motor 2 is reduced, and the flexible seal 54 is reset to seal the bottom opening of the distillation vessel 1. When it is necessary to remove the collection bucket 72, the bucket body is rotated in the opposite direction, so that the short rod rotates horizontally in the mounting groove 73. Several rotating rods 762 rotate along their own axes, thereby realizing the rotation of several fan blades 763. The several fan blades 763 overlap each other in a stepped manner to seal the top opening of the collection bucket 72. After sealing the top opening of the collection bucket 72, it is removed.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A refining apparatus for fatty acid purification, comprising a distillation vessel body (1) that can be mounted on a support, characterized in that: A stirring motor (2) is fixedly installed on the top of the distillation vessel body (1). A shaft (3) is fixedly installed at the output end of the stirring motor (2). The bottom end of the shaft (3) extends to the bottom of the inner cavity of the distillation vessel body (1). Several stirring blades (4) are installed on the outer wall of the shaft (3) along its axis. An adjustment component (5) is provided at the bottom end of the shaft (3). The adjustment assembly (5) includes a fixed seat (51) symmetrically welded to the bottom end of the shaft (3). An adjustment plate (52) is slidably connected to the outside of the fixed seat (51). An anchor-type stirring paddle (53) is fixedly installed on the top of the adjustment plate (52). The adjustment plate (52) is "C" shaped, and the radius of the adjustment plate (52) is larger than the radius of the bottom opening of the distillation vessel body (1). A flexible sealing element (54) is installed at the bottom of the adjustment plate (52). When the two adjustment plates (52) are in contact, they form a complete circle, and the two flexible sealing elements (54) completely cover the bottom opening of the distillation vessel body (1). The fixed base (51) has sliding grooves (55) on both sides, and the inner cavity of the adjusting plate (52) is threaded with a moving rod (56). The end of the moving rod (56) near the sliding groove (55) extends into the sliding groove (55). The slide (55) includes a parallel section (551), the side of the parallel section (551) away from the shaft (3) is connected to an upward-sloping section (552), the side of the upward-sloping section (552) is connected to a middle section (553), and the middle section (553) is Y-shaped. The side of the middle section (553) is connected to a downward-sloping section (554). The depths of the middle section (553) and the downward-sloping section (554) are both less than the depth of the upward-sloping section (552). An L-shaped block (57) is fixedly connected to the bottom of the adjusting disc (52), and the L-shaped blocks (57) are two symmetrically arranged blocks. The top of each is connected to a high-temperature resistant elastic element (58), and the high-temperature resistant elastic element (58) is located between the L-shaped block (57) and the fixed seat (51). When the adjustment discs (52) are in contact, the top surface of the high-temperature resistant elastic element (58) is in contact with the bottom surface of the fixed seat (51). The fixed seat (51) has a cavity. The inner wall of the fixed seat (51) and the inner wall of the adjustment disc (52) are connected by a cylindrical tension spring (59) through a fixing ring. The number of cylindrical tension springs (59) is not less than one set. When the two adjustment discs (52) are in contact, the cylindrical tension springs (59) are in a natural state.

2. The refining apparatus for fatty acid purification according to claim 1, characterized in that: The inner cavity of the distillation vessel body (1) is provided with a fitting component (6). The fitting component (6) includes an annular slide rail (61) opened on the inner wall of the distillation vessel body (1). A slider (62) is slidably connected in the annular slide rail (61), and the slider (62) consists of two symmetrically arranged pieces. A cleaning scraper (63) is fixedly installed on the outer wall of the slider (62), and the outer wall of the cleaning scraper (63) is in contact with the inner wall of the distillation vessel body (1).

3. The refining apparatus for fatty acid purification according to claim 2, characterized in that: The bottom of the inner cavity of the distillation vessel body (1) is rotatably mounted with a rotating disk (64), and the bottom of the two cleaning scrapers (63) is fixedly connected to the top of the rotating disk (64). A high-temperature resistant rubber ring (65) is installed on the inner side of the rotating disk (64).

4. The refining apparatus for fatty acid purification according to claim 1, characterized in that: The bottom of the distillation vessel body (1) is provided with a receiving component (7). The receiving component (7) includes a connecting ring (71) welded to the outer wall of the bottom of the distillation vessel body (1). A collection bucket (72) for receiving residue is installed on the inner side of the connecting ring (71). An installation groove (73) is provided on the wall of the connecting ring (71). The installation groove (73) is inverted "L" shape, and the bottom opening of the installation groove (73) is connected to the outside. A short rod is welded on the outer wall of the collection bucket (72).

5. The refining apparatus for fatty acid purification according to claim 4, characterized in that: A toggle ring (74) is rotatably mounted on the outer wall of the collection bucket (72), and the toggle ring (74) is located at the bottom of the short rod. A push block (75) is welded to the top of the toggle ring (74), and a fixing block is integrally formed and connected to the bottom of the connecting ring (71). A bucket body seal (76) is installed on the collection bucket (72).

6. The refining apparatus for fatty acid purification according to claim 5, characterized in that: The barrel sealing component (76) includes a column (761) fixedly installed in the inner cavity of the collection barrel (72), and the column (761) and the collection barrel (72) are on the same axis. Several rotating rods (762) are arranged in a ring array on the wall of the column (761). Fan blades (763) are installed on the outer wall of the rotating rods (762), and sealing strips (764) are installed on the outer wall of the fan blades (763).

7. The refining apparatus for fatty acid purification according to claim 6, characterized in that: The end of the rotating rod (762) away from the column (761) is movably inserted through the wall of the collection bucket (72), and a drive ring (765) is fixedly sleeved on this end of the rotating rod (762). Several drive rods (766) are arranged in a ring array at the bottom of the actuating ring (74), and the number of drive rods (766) is the same as that of the rotating rod (762). The rod body of the drive rod (766) extends into the drive ring (765).

Images