An ethyl acetate extraction dehydration device

Abstract

The present application relates to the technical field of ethyl acetate extraction, and particularly relates to a kind of ethyl acetate extraction dehydration equipment, including driving motor, motor support, light phase collection pipe, fixed mechanism, heavy phase collection pipe, feed pipe, fixing frame and centrifugal mechanism;The fixed mechanism is installed on the top of fixing frame, the driving motor is installed above the fixed mechanism by the motor support, the light phase collection pipe is installed on the upper position of the outer surface of fixed mechanism, the heavy phase collection pipe is installed in the middle position of the outer surface of fixed mechanism, the feed pipe is provided with 2, and the centrifugal mechanism is coaxially installed in the inside of fixed mechanism;Rotary assembly in centrifugal mechanism is rotated under the driving of driving motor, centrifugal fan blade drives continuous phase in sealed shell to centrifugal layering into light phase and heavy phase, and light phase and heavy phase are discharged through light phase collection pipe and heavy phase collection pipe after being collected through light phase flow channel and heavy phase flow channel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ethyl acetate extraction, and particularly relates to ethyl acetate extraction dehydration equipment. BACKGROUND

[0002] Ethyl acetate is an organic compound with the chemical formula C4H8O2, which is a colorless liquid with a fruity odor, and is widely used in many industrial and laboratory applications. Its main uses are as follows: ethyl acetate is an excellent organic solvent commonly used in the preparation of products such as paint, ink, glue and coating; as a flavor, ethyl acetate is often used as an ingredient of flavor due to its fruity odor; as a reaction medium, ethyl acetate plays an important role in organic synthesis; ethyl acetate is usually prepared by esterification of acetic acid and ethanol, which is usually carried out in the presence of an acid catalyst.

[0003] In the process of preparing ethyl acetate by esterification of acetic acid and ethanol, the main purpose of the dehydration operation is to reduce the water content in ethyl acetate, and higher purity ethyl acetate is more important in many industrial and laboratory applications, so it is necessary to remove the water therein. The existing extraction dehydration technology is mainly extraction tower extraction, the continuous phase is added from the top of the extraction tower, the crude ester is added from the bottom of the tower, and the crude ester is the dispersed phase. This extraction method can better remove water in the crude ester, but in the extraction process, potassium acetate solution is easily extracted with the crude ester, resulting in insufficient extraction purity of the crude ester. In some cases where higher purity is required, a secondary refining process is needed for secondary extraction.

[0004] In view of the above situation, in order to overcome the above technical problems, the present application designs an ethyl acetate extraction dehydration equipment, which solves the above technical problems. SUMMARY

[0005] The technical purpose to be achieved by the present application is to separate the light phase and the heavy phase by fully stirring and centrifuging the solution of the continuous phase in the sealed shell according to the principle of centrifugal extraction, and collecting them respectively, and then collecting the continuous phase of the intermediate transition part again to the bottom of the sealed shell for multiple centrifugal extraction dehydration, so as to obtain high-purity ethyl acetate by extraction dehydration.

[0006] In order to achieve the above technical purpose, the present application provides the following technical scheme:

[0007] The application provides an ethyl acetate extraction dehydration equipment, which comprises a driving motor, a motor support, a light phase collecting pipe, a fixing mechanism, a heavy phase collecting pipe, a feeding pipe, a fixing frame and a centrifugal mechanism; the fixing mechanism is installed on the upper surface of the fixing frame, the driving motor is installed above the fixing mechanism through the motor support, the light phase collecting pipe is installed at the upper position of the outer surface of the fixing mechanism, the heavy phase collecting pipe is installed at the middle position of the outer surface of the fixing mechanism, the feeding pipe is provided with two feeding pipes which are mirror installed on the two sides of the fixing mechanism, and the centrifugal mechanism is coaxially installed in the fixing mechanism; the rotating assembly in the centrifugal mechanism rotates under the driving of the driving motor, the continuous phase in the sealed shell is centrifuged into light phase and heavy phase by the centrifugal fan blade, the light phase and the heavy phase are collected through the light phase flow channel and the heavy phase flow channel, and then discharged through the light phase collecting pipe and the heavy phase collecting pipe; and the transition part of the continuous phase is collected by the circulating assembly and then centrifugally extracted again in the rotating rod rotation centrifugal extraction dehydration process.

[0008] The centrifugal mechanism comprises a shell, a rotating assembly, a circulating assembly, a suction assembly and a drainage plate; the shell is installed in the fixing mechanism, the rotating assembly is installed in the middle of the shell, the circulating assembly is installed on the upper surface in the shell, the suction assembly is linearly arrayed and installed below the middle of the shell, and the drainage plate is installed below the shell; the upper part of the drainage plate is a flow-stopping plate, the flow-stopping plate is annular, a channel is provided in the middle of the annular flow-stopping plate for the continuous phase to enter, and the flow-stopping plate prevents the continuous phase liquid from being sucked into the centrifugal mechanism before being fully mixed, thereby causing poor centrifugal extraction effect; baffles are linearly arrayed and arranged below the flow-stopping plate, the baffles are linearly arrayed and arranged, and when the baffles rotate, the baffles can fully stir the continuous phase, so that the continuous phase is fully mixed to form a continuous phase with uniform texture, thereby improving the centrifugal extraction effect; the baffle is a right-angled trapezoid, and the upper base of the right-angled trapezoid is arranged on the side close to the suction assembly; in this way, when the centrifugal mechanism rotates under the driving of the driving motor, a vortex-shaped water flow is formed below the centrifugal mechanism, which helps to form a continuous phase with uniform texture and also helps the suction assembly to reduce the workmanship, so that the continuous phase can be quickly transported to the inside of the shell, thereby improving the work efficiency.

[0009] The shell comprises a connecting sleeve, a mounting groove, a rotating disc, a light phase flow channel, a heavy phase flow channel and a rotating groove; the connecting sleeve is installed in the middle of the fixing mechanism, the connecting sleeve is a hollow cylindrical structure, on one hand, the cylindrical structure is convenient for rotation, on the other hand, the cylindrical structure is convenient for setting the mounting groove for installing the rotating assembly, the mounting groove is arranged in the middle of the connecting sleeve, the rotating disc is installed below the connecting sleeve, the rotating disc is a convex knob structure with a protruding middle, the protruding middle of the knob structure is matched with the sealing shell, on one hand, the sealing performance is improved, on the other hand, the whole shell is limited to rotate at the axis of the sealing shell under the action of gravity, the effect of centrifugal extraction is ensured, the light phase flow channel and the heavy phase flow channel are arranged in the inside of the rotating disc, the light phase flow channel is located below the heavy phase flow channel, and the rotating groove is arranged on the lower surface of the outer ring of the rotating disc.

[0010] The light phase flow channel is a ring structure, the ring structure can collect the light phase at multiple angles to a greater extent, thereby improving the working efficiency, a plurality of light phase water outlet pipes are arranged around the ring array of the light phase flow channel, the plurality of light phase water outlet pipes arranged in the ring array can quickly and conveniently transport the light phase into the light phase collecting cavity and then discharge the light phase through the light phase collecting pipe, the cross section direction of the heavy phase flow channel is a fan ring, since the centrifugal force received by the heavy phase is large during the centrifugal extraction, the kinetic energy of the heavy phase is also high, the heavy phase flow channel is arranged above the light phase flow channel and is arranged in a fan ring shape, although the difficulty and distance of heavy phase collection and discharge are increased, since the kinetic energy of the heavy phase is large, the extraction amount between the light phase and the heavy phase can be balanced, and the extraction and dehydration process is stably performed, the heavy phase flow channels are arranged at the middle of the light phase water outlet pipes, the heavy phase flow channels are arranged at the middle of the light phase water outlet pipes, thereby improving the collection speed of the heavy phase flow channels as much as possible, the heavy phase water outlet pipes are installed at the outer edges of the heavy phase flow channels; the light phase flow channel and the heavy phase flow channel are coaxially arranged with different diameters around the mounting groove, during the centrifugal extraction process, the heavy phase and the light phase are distributed around the mounting groove, and the radius value of the light phase flow channel is smaller than the radius value of the heavy phase flow channel, wherein the centrifugal force received by the heavy phase is large, so the heavy phase is mostly on the outer side, and the light phase is mostly on the inner side, through the coaxial arrangement with different diameters, the light phase and the heavy phase can be quickly separated and collected, thereby realizing the dehydration and purification of high-purity ethyl acetate.

[0011] The rotating assembly comprises a rotating rod, centrifugal vanes, a distribution disc and a distribution groove, the rotating rod is installed inside the installation slot, the centrifugal vanes are installed on the outer side of the rotating rod, the distribution disc is installed below the rotating rod, the distribution groove is arranged on the outer edge of the distribution disc, the distribution groove is V-shaped, the V-shaped distribution groove allows a part of the continuous phase to pass through and enter the inside of the sealed shell, when the water volume of the continuous phase is insufficient, the effect of the distribution disc is reduced to ensure the working efficiency of the centrifugal mechanism; the cross section of the centrifugal vane is a same-direction curved arc shape, the centrifugal vane with the same-direction curved arc shape can quickly rotate and centrifugally process the continuous phase preliminarily centrifuged by the distribution disc at high speed, the rotating direction of the rotating rod is the same as the bending direction of the centrifugal vane, so as to strengthen the rotating effect, improve the centrifugal force received by the continuous phase and ensure the effect of centrifugal extraction and dehydration.

[0012] The circulating assembly comprises a transition plate, a collection groove and a circulating flow channel, the transition plate is installed below the rotating disc, the collection groove is arranged in the middle of the transition plate, the collection groove is triangular, the triangular collection groove can completely divide the transition plate into two parts, so as to separate the light phase and the heavy phase, and if the part between the light phase and the heavy phase flows out through the collection groove, it will finally flow into the light phase flow channel or the heavy phase flow channel, resulting in the decrease of the purity of the collected light phase and heavy phase, the circulating flow channel is arranged inside the shell, one end of the circulating flow channel is communicated with the collection groove, the continuous phase in the transition section is input into the inside of the shell again for centrifugation under the action of gravity and pressure difference, a one-way valve is installed at the outlet of the circulating flow channel inside the shell, so as to ensure that the continuous phase in the inside of the shell cannot flow reversely through the circulating flow channel to affect the centrifugal extraction effect.

[0013] The pumping assembly comprises a fixed ring, spiral vanes, an overflow groove and a central hole, the fixed ring is installed in the middle of the lower part of the shell, the spiral vanes are installed in the middle of the fixed ring, the overflow groove is arranged in the middle of adjacent spiral vanes, the overflow groove is crescent-shaped, the bending direction of the crescent-shaped overflow groove is consistent with the bending direction of the spiral vanes, so that the crescent-shaped overflow groove can pressurize and rise the water flow driven by the spiral vanes, the central hole is arranged in the middle of the spiral vanes.

[0014] The fixed mechanism includes a sealed shell, a light phase collection cavity, a rotating ball, a heavy phase collection cavity, a feeding partition, a mixing cavity, a one-way control valve and a discharge gun head; the sealed shell is installed on the upper surface of the fixed frame, the light phase collection cavity is arranged at the uppermost position in the interior of the sealed shell, the rotating ball is annularly arranged on the horizontal surface in the interior of the sealed shell, the rotating ball and the rotating groove are matched to reduce the rotating friction, the heavy phase collection cavity is arranged at the middle position in the interior of the sealed shell, the feeding partition is installed in the interior of the sealed shell and is annular, the annular partition divides the interior space of the sealed shell into the heavy phase collection cavity and the light phase collection cavity, the mixing cavity is arranged in the area below the feeding partition in the interior of the sealed shell, the one-way control valve is installed on the lower end surface of the sealed shell, and the discharge gun head is installed below the one-way control valve.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The present application changes the existing extraction separation mode through an extraction tower, utilizes the principle of centrifugal extraction, rapidly centrifugally extracts the continuous phase with uniform texture, makes the light phase and the heavy phase diverge through the principle of density difference, collects the light phase and the heavy phase through the flow channels arranged at different heights, reduces the waste after continuous phase extraction, can realize continuous long-term work, and avoids the inconvenience of quantitative extraction, so that high-purity ethyl acetate is obtained through extraction and dehydration.

[0017] 2. The present application rotates and centrifugally extracts the continuous phase with uniform texture through the rotating assembly, rapidly separates the light phase and the heavy phase, and separates the light phase and the heavy phase through the circulating assembly, so that the continuous phase in the transition section with insufficient purity is recycled and processed again, so as to improve the extraction purity of ethyl acetate.

[0018] 3. The present application rotates the continuous phase stirred by the flow guide plate under the driving of the spiral fan blade to form a vortex, the continuous phase after multiple suction has a certain initial speed and enters the shell to be centrifugally processed by the rotating assembly, so as to improve the initial speed of the continuous phase before centrifugation and improve the working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] The above and other aspects of the present application will now be described in detail with reference to the accompanying drawings, only by way of example, in which:

[0021] Figure 1 is the schematic diagram of the overall structure of the present application;

[0022] Figure 2 is the sectional view of the internal structure of the present application;

[0023] Figure 3 is the sectional view of the centrifugal mechanism of the present application;

[0024] Figure 4 is the sectional view and enlarged view of details of the shell and the drainage plate of the present application;

[0025] Figure 5 is the schematic diagram of the local section of the shell of the present application;

[0026] Figure 6 is the sectional view of the shell of the present application;

[0027] Figure 7 is the sectional view of the heavy phase flow channel of the present application;

[0028] Figure 8 is the schematic diagram of the structure of the rotating assembly of the present application;

[0029] Figure 9 is the schematic diagram of the structure of the suction assembly of the present application;

[0030] Figure 10 is the sectional schematic diagram of the fixing mechanism of the present application.

[0031] In the figure: 1, driving motor; 2, motor support; 3, light phase collection pipe; 4, fixing mechanism; 41, sealing shell; 42, light phase collection cavity; 43, rotating ball; 44, heavy phase collection cavity; 45, feeding partition plate; 46, mixing cavity; 47, one-way control valve; 48, discharge gun head; 5, heavy phase collection pipe; 6, feeding pipe; 7, fixing frame; 8, centrifugal mechanism; 81, shell; 811, connecting sleeve; 812, mounting groove; 813, rotating disc; 814, light phase flow channel; 814a, light phase water outlet pipe; 815, heavy phase flow channel; 815a, heavy phase water outlet pipe; 816, rotating groove; 82, rotating assembly; 821, rotating rod; 822, centrifugal fan blade; 823, shunt disc; 824, shunt groove; 83, circulating assembly; 831, transition plate; 832, collection groove; 833, circulating flow channel; 84, suction assembly; 841, fixed ring; 842, spiral fan blade; 843, overflow groove; 844, central hole; 85, drainage plate; 851, flow-stopping plate; 852, baffle. DETAILED DESCRIPTION

[0032] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0033] AsFigures 1 to 10 As shown, an ethyl acetate extraction and dehydration device includes a drive motor 1, a motor bracket 2, a light phase collection pipe 3, a fixing mechanism 4, a heavy phase collection pipe 5, a feed pipe 6, a fixing frame 7 and a centrifugal mechanism 8; the fixing mechanism 4 is mounted on the fixing frame 7, the drive motor 1 is mounted above the fixing mechanism 4 through the motor bracket 2, the light phase collection pipe 3 is mounted at an upper position on the outer surface of the fixing mechanism 4, the heavy phase collection pipe 5 is mounted in the middle position of the outer surface of the fixing mechanism 4, two feed pipes 6 are provided, and the feed pipes 6 are mounted in mirror images on both sides of the fixing mechanism 4, and the centrifugal mechanism 8 is coaxially mounted inside the fixing mechanism 4;

[0034] The rotating component 82 in the centrifugal mechanism 8 rotates under the drive of the drive motor 1, and the centrifugal fan blades 822 drive the continuous phase inside the sealed shell 41 to be centrifugally separated into a light phase and a heavy phase. The light phase and the heavy phase are collected through the light phase flow channel 814 and the heavy phase flow channel 815 through the shell 81 and are discharged through the light phase collection pipe 3 and the heavy phase collection pipe 5. During the centrifugal extraction and dehydration process of the rotating rod 821, the transition part of the continuous phase is collected by the circulation component 83 and centrifuged again.

[0035] like Figure 3 As shown, the centrifugal mechanism 8 includes a shell 81, a rotating assembly 82, a circulation assembly 83, a suction assembly 84 and a guide plate 85; the shell 81 is installed inside the fixing mechanism 4, the rotating assembly 82 is installed in the middle of the shell 81, the rotating assembly 82 is used to rotate under the drive motor 1 to centrifuge the continuous phase, the circulation assembly 83 is installed on the upper surface of the shell 81, the circulation assembly 83 is used to recycle the transition section liquid after the continuous phase is centrifuged and centrifuge it again to ensure the purity of the centrifugal extraction, and the suction assembly 84 is a linear array. The column is installed in the middle below the shell 81, and the suction assembly 84 is used to suck the continuous phase mixed in the sealed shell 81 into the interior of the shell 81. The guide plate 85 is installed below the shell 81, and the upper part of the guide plate 85 is a stop plate 851. The guide plate 85 is used to preliminarily stir the continuous phase to make its texture uniform and reduce the work done by the suction assembly 84. The stop plate 851 is annular, and a baffle 852 is provided in the annular array below the stop plate 851. The baffle 852 is a right-angled trapezoid, and the upper base of the trapezoid is set on the side close to the suction assembly 84.

[0036] When the centrifugal extraction is performed, the centrifugal mechanism 8 is rotated at high speed under the driving of the driving motor 1, the guide plate 85 preliminarily stirs the continuous phase to obtain the continuous phase with uniform texture, the continuous phase with uniform texture is sucked upward by the suction assembly 84, the rotating assembly 82 divides the continuous phase, and then the centrifugal extraction is performed on the continuous phase, so that the light phase and the heavy phase are separated, and the light phase and the heavy phase are discharged outside through the flow channels arranged in the shell 81, wherein the transition section between the light phase and the heavy phase is captured by the circulating assembly 83 and is input into the shell 81 again for centrifugal extraction.

[0037] As shown in Figure 4 , Figure 5 , Figure 6 and Figure 7 , the shell 81 comprises a connecting sleeve 811, a mounting groove 812, a rotating disc 813, a light phase flow channel 814, a heavy phase flow channel 815 and a rotating groove 816; the connecting sleeve 811 is arranged in the middle of the fixed mechanism 4, the connecting sleeve 811 is a hollow cylindrical structure, the mounting groove 812 is arranged in the middle of the connecting sleeve 811, the mounting groove 812 is used for mounting the rotating assembly 82, the rotating disc 813 is arranged below the connecting sleeve 811, the rotating disc 813 is a knob-shaped structure with a protrusion in the middle, the rotating disc 813 is used for collecting and discharging the light phase and the heavy phase after centrifugal extraction, the light phase flow channel 814 and the heavy phase flow channel 815 are arranged in the inside of the rotating disc 813, the light phase flow channel 814 is below the heavy phase flow channel 815, the rotating groove 816 is arranged on the lower surface of the outer ring of the rotating disc 813, the rotating groove 816 is used for being clamped on the rotating ball 43 to reduce the friction of rotation and limit the centrifugal mechanism 8; the light phase flow channel 814 is an annular structure, the light phase water outlet pipe 814a is arranged around the light phase flow channel 814 in an annular array, the cross section of the heavy phase flow channel 815 is in the shape of a fan ring, the heavy phase flow channel 815 is arranged in the middle of the light phase water outlet pipe 814a in a spaced manner, and the heavy phase water outlet pipe 815a is arranged on the outer edge of the heavy phase flow channel 815. The light phase flow channel 814 and the heavy phase flow channel 815 are coaxially arranged with different diameters around the mounting groove 812, and the radius of the light phase flow channel 814 is smaller than the radius of the heavy phase flow channel 815.

[0038] The driving motor 1 drives the shell to rotate, the rotating groove 816 on the rotating disc 813 cooperates with the rotating ball 43 to rotate, the continuous phase after high-speed centrifugation is separated into the light phase and the heavy phase, the light phase is captured by the light phase flow channel 814 after being close to the inside, and the light phase flows out through the light phase water outlet pipe 814a under the action of the pressure difference and the centrifugal force, and the heavy phase is captured by the heavy phase flow channel 815 after being close to the inside, and the heavy phase flows out through the heavy phase water outlet pipe 815a under the action of the pressure difference and the centrifugal force.

[0039] As shown in Figure 8As shown, the rotating assembly 82 includes a rotating rod 821, centrifugal fan blades 822, a flow distribution disc 823, and a flow distribution groove 824. The rotating rod 821 is installed inside the installation slot 812 and is used to connect the driving motor 1 to drive the entire rotating assembly 82 to rotate. The centrifugal fan blades 822 are installed on the outer side of the rotating rod 821 and are used to rotate quickly to cause the continuous phase to be subjected to centrifugal force to achieve separation of the light and heavy phases. The flow distribution disc 823 is installed below the rotating rod 821 and is used to diffuse the rising continuous phase outward to help it to quickly separate the light and heavy phases. The flow distribution groove 824 is V-shaped and is provided on the outer edge of the flow distribution disc 823 and is used to increase the flow area when the water pressure is insufficient, thereby ensuring the working efficiency. The cross-sectional shape of the centrifugal fan blades 822 is a same-direction curved arc shape, and the rotating direction of the rotating rod 821 and the bending direction of the centrifugal fan blades 822 are the same.

[0040] As shown in Figure 4 The circulating assembly 83 includes a transition plate 831, a collection groove 832, and a circulating flow channel 833. The transition plate 831 is installed below the rotating disc 813 and is used to separate the light and heavy phases after centrifugation to ensure the purity of the extraction. The collection groove 832 is provided in the middle of the transition plate 831 and is used to recycle the transition segment continuous phase between the light and heavy phases to achieve re-extraction, thereby avoiding the transition segment continuous phase mixed into the light phase flow channel 814 or the heavy phase flow channel 815 under the action of the pressure difference, which causes the purity to decrease. The collection groove 832 is triangular. The circulating flow channel 833 is provided inside the shell 81 and is in communication with one end of the collection groove 832.

[0041] If the transition segment continuous phase in the middle part is not treated in time after the separation of the light and heavy phases, it will be mixed into the light and heavy phase flow channel 815 to cause the purity to decrease. The light and heavy phases are regionally isolated by the transition plate 831 in the circulating assembly 83, thereby further improving the purity of the product and recycling the transition segment continuous phase. After circulating in the circulating flow channel 833, it is discharged into the inside of the shell to be extracted multiple times, thereby ensuring that the light phase flow channel 814 and the heavy phase flow channel 815 do not capture this part of the continuous phase and ensure the purity of the extraction and dehydration.

[0042] As shown in Figure 9As shown, the suction assembly 84 includes a fixed ring 841, a spiral blade 842, an overflow groove 843 and a central hole 844; the fixed ring 841 is installed in the middle of the lower part of the shell 81, the fixed ring 841 is used to fix the spiral blade 842 and the shell 81, so as to realize coaxial rotation between the two, the spiral blade 842 is installed in the middle of the fixed ring 841, the spiral blade 842 is used to pressurize and lift the continuous phase below after rotation, the overflow groove 843 is opened in the middle of the adjacent spiral blade 842, the overflow groove 843 is used to guide the spiral flow formed by the spiral blade 842, so as to pressurize and lift this part of the continuous phase, the overflow groove 843 is crescent-shaped, the bending direction of the crescent-shaped is consistent with the bending direction of the spiral blade 842; the central hole 844 is opened in the middle of the spiral blade 842, the central hole 844 is used to balance the pressure on both sides and reduce the risk of blockage.

[0043] The continuous phase stirred by the flow guide plate 85 is quickly rotated in a vortex state under the driving of the spiral blade 842, and is lifted upward through the overflow groove 843, the continuous phase after multiple suction has a certain initial velocity and enters the shell to be centrifuged by the rotating assembly 82.

[0044] As Figure 10As shown, the fixed mechanism 4 includes a sealed shell 41, a light phase collection cavity 42, a rotating ball 43, a heavy phase collection cavity 44, a feed partition 45, a mixing cavity 46, a one-way control valve 47 and a discharge gun head 48; the sealed shell 41 is installed on the upper surface of the fixed frame 7, the sealed shell 41 is used to provide a sealed environment to ensure the stable operation of the centrifugal extraction, the light phase collection cavity 42 is opened at the uppermost inside of the sealed shell 41, the light phase collection cavity 42 is used to collect the light phase thrown out by the light phase outlet pipe 814a and then discharged through the light phase collection pipe 3, the rotating ball 43 is annularly arranged on the horizontal surface inside the sealed shell 41, the rotating ball 43 is used to cooperate with the rotating groove 816 to convert the rotating friction into rolling friction, thereby reducing the work of the driving motor 1 and limiting the centrifugal mechanism 8 and the fixed mechanism 4 to rotate coaxially, the heavy phase collection cavity 44 is opened at the middle position inside the sealed shell 41, the heavy phase collection cavity 44 is used to collect the heavy phase discharged by the heavy phase outlet pipe 815a and then discharged through the heavy phase collection pipe 5, the feed partition 45 is installed inside the sealed shell 41, the feed partition 45 is used to separate the feed area and the centrifugal extraction area to ensure that the feed needs to be preliminarily stirred before being centrifuged, thereby improving the purity of the product, the feed partition 45 is annular, the mixing cavity 46 is opened at the area below the feed partition 45 inside the sealed shell 41, the mixing cavity 46 is used to preliminarily mix the feed, the one-way control valve 47 is installed at the lower end surface of the sealed shell 41, the one-way control valve 47 is used to control the discharge of the liquid in the mixing cavity 46, after the completion of the centrifugal extraction, the corresponding cleaning solution can be injected through the feed pipe 6 for cleaning and then discharged through the one-way control valve 47, the discharge gun head 48 is installed below the one-way control valve 47, the discharge gun head 48 is used to discharge the liquid.

[0045] In the working process of the application, the staff continuously feeds the inside of the fixing mechanism 4 through the feeding pipe 6, the driving motor 1 is started, the driving motor 1 drives the shell to rotate, the rotating groove 816 on the rotating disc 813 cooperates with the rotating ball 43 to rotate, the continuous phase stirred by the flow guide plate 85 is quickly rotated to form a vortex under the driving of the spiral fan blade 842, and then is lifted upward through the overflow groove 843, and the continuous phase after multiple suction has a certain initial speed and enters the shell to be centrifuged by the rotating assembly 82; the centrifugal mechanism 8 is driven by the driving motor 1 to rotate at high speed, the flow guide plate 85 preliminarily stirs the continuous phase to obtain a continuous phase with uniform texture, the continuous phase with uniform texture is sucked upward by the suction assembly 84, the rotating assembly 82 divides the continuous phase, and then centrifugal extraction is performed on the continuous phase, so that the light and heavy phases are separated, the transition section of the continuous phase in the middle part is separated from the light and heavy phases by the transition plate 831 in the circulating assembly 83, so that the purity of the product is further improved, and the continuous phase in the transition section is recycled, circulated in the circulating flow channel 833 and then discharged into the shell for multiple extraction, so that the light phase flow channel 814 and the heavy phase flow channel 815 cannot capture the continuous phase;

[0046] After high-speed centrifugation, the continuous phase is separated into light and heavy phases, the light phase is captured by the light phase flow channel 814 near the inside, and under the action of the pressure difference and the centrifugal force, the light phase flows out through the light phase water outlet pipe 814a, the heavy phase is captured by the heavy phase flow channel 815 near the inside, and under the action of the pressure difference and the centrifugal force, the heavy phase flows out through the heavy phase water outlet pipe 815a, and is discharged outward through the flow channel arranged in the shell 81, wherein the transition section between the light and heavy phases is captured by the circulating assembly 83 and is input into the inside of the shell 81 again for centrifugal extraction.

[0047] After one working cycle is completed, the staff can discharge the cleaning solution through the feeding pipe 6, the driving motor 1 is rotated at low speed to realize cleaning, and the one-way control valve 47 is opened, so that the cleaned solution is discharged through the discharge gun head 48.

[0048] The description herein is provided so that those of ordinary skill in the art can implement or use the present disclosure. Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ethyl acetate extraction dehydration apparatus, characterized by, The centrifugal mechanism comprises a shell, a rotating assembly, a circulating assembly, a suction assembly and a drainage plate; the shell is installed in the interior of the fixed mechanism, the rotating assembly is installed in the middle of the shell, the circulating assembly is installed on the upper surface in the interior of the shell, the suction assembly is linearly arrayed along the central axis of the shell and is installed in the middle below the shell, and the drainage plate is installed below the shell; the upper part of the drainage plate is a flow-stopping plate, the flow-stopping plate is annular, and the lower annular array of the flow-stopping plate is provided with baffles, the baffles are right-angled trapezoids, and the upper base of the trapezoid is arranged on the side close to the suction assembly. The shell comprises a connecting sleeve, a mounting groove, a rotating disc, a light-phase flow channel, a heavy-phase flow channel and a rotating groove; the connecting sleeve is installed in the middle of the fixed mechanism, the connecting sleeve is a hollow cylindrical structure, the mounting groove is arranged in the middle of the connecting sleeve, the rotating disc is installed below the connecting sleeve, the rotating disc is a knob-shaped structure with a protrusion in the middle, the light-phase flow channel and the heavy-phase flow channel are arranged in the interior of the rotating disc, the cross section of the heavy-phase flow channel is fan ring-shaped, the heavy-phase flow channel is arranged in the middle of the light-phase outlet pipe, the light-phase flow channel is below the heavy-phase flow channel, and the rotating groove is arranged on the lower surface of the outer ring of the rotating disc. The rotating assembly comprises a rotating rod, centrifugal fan blades, a flow distribution disc and a flow distribution groove; the rotating rod is installed in the interior of the mounting groove, the centrifugal fan blades are installed on the outer side of the rotating rod, the flow distribution disc is installed below the rotating rod, the flow distribution groove is arranged on the outer edge of the flow distribution disc, and the flow distribution groove is V-shaped. The cross section of the centrifugal fan blade is arc-shaped and curves in the same direction as the rotating direction of the rotating rod. The suction assembly comprises a fixed ring, spiral fan blades, an overflow groove and a central hole; the fixed ring is installed in the middle of the lower part of the shell, the spiral fan blades are installed in the middle of the fixed ring, the overflow groove is arranged in the middle of adjacent spiral fan blades, the overflow groove is crescent-shaped, and the bending direction of the crescent-shaped overflow groove is consistent with the bending direction of the spiral fan blades; and the central hole is arranged in the middle of the spiral fan blades. The driving motor drives the rotating assembly in the centrifugal mechanism to rotate, the centrifugal fan blades drive the continuous phase in the sealed shell to be centrifugally separated, the continuous phase after centrifugal separation is stirred by the centrifugal fan blades and enters the light-phase flow channel and the heavy-phase flow channel, and the separated continuous phase is discharged through the light-phase collection pipe and the heavy-phase collection pipe under the action of the pressure difference between the interior and the exterior of the shell. The light-phase flow channel is annular, and light-phase outlet pipes are annularly arrayed around the light-phase flow channel; the outer edge of the heavy-phase flow channel is provided with heavy-phase outlet pipes.

2. An ethyl acetate extraction dehydration apparatus according to claim 1, characterized by: The light-phase flow channel and the heavy-phase flow channel are coaxially arranged with different diameters around the mounting groove, and the radius of the light-phase flow channel is smaller than the radius of the heavy-phase flow channel.

3. An ethyl acetate extraction dehydration apparatus according to claim 2, characterised in that: ​ 4. An ethyl acetate extraction dehydration apparatus according to claim 1, characterized by: The circulating assembly comprises a transition plate, a collection groove and a circulating flow channel, the transition plate is installed below the rotating disc, the collection groove is opened in the middle of the transition plate, the collection groove is triangular, and the circulating flow channel is opened in the inside of the shell body, and one end of the circulating flow channel is communicated with the collection groove.

5. An ethyl acetate extraction dehydration apparatus according to claim 1, characterized by: The fixing mechanism comprises a sealing shell, a light phase collection cavity, rotating balls, a heavy phase collection cavity, a feeding partition, a mixing cavity, a one-way control valve and a discharge gun head; the sealing shell is installed on the top of the fixing frame, the light phase collection cavity is opened in the uppermost inside of the sealing shell, the rotating balls are annularly arranged on the horizontal surface inside the sealing shell, the heavy phase collection cavity is opened in the middle position inside the sealing shell, the feeding partition is installed inside the sealing shell and is annular, the mixing cavity is opened in the area below the feeding partition inside the sealing shell, the one-way control valve is installed on the lower end surface of the sealing shell, and the discharge gun head is installed below the one-way control valve.

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