Extraction device with energy-saving function

Abstract

The application discloses an energy-saving extraction equipment, which comprises a rack, an extraction tank, a first motor, an upper rotating shaft, stirring blades, an upper friction plate, a lower rotating shaft, a lower friction plate and a damping mechanism. The extraction tank is installed on the rack. The first motor is installed on the upper side of the extraction tank. The upper rotating shaft is vertically arranged in the extraction tank, and the upper end of the upper rotating shaft is connected with the first motor. The stirring blades are fixedly connected to the side surface of the upper rotating shaft. The upper friction plate is horizontally fixedly connected to the lower end of the upper rotating shaft. The energy-saving extraction equipment is provided. After the first motor is stopped, the residual kinetic energy of the mixed liquid, the stirring blades and the upper rotating shaft can be used to generate heat by friction between the upper friction plate and the lower friction plate, so as to heat the mixed liquid, improve the energy utilization rate, shorten the mass transfer process, and improve the extraction efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of extraction equipment, and in particular to an extraction equipment with energy-saving function. BACKGROUND

[0002] The extraction device is widely used in the fields of environmental protection and chemical industry. The existing extraction device can refer to the patent with the application number CN2017101511031, which comprises an extraction tank, a motor, an upper rotating shaft, stirring blades, a liquid outlet and a liquid outlet valve. The motor is installed on the upper side of the extraction tank, the upper end of the upper rotating shaft is installed vertically on the motor, and the stirring blades are installed on the lower end of the upper rotating shaft. When in use, the extraction agent and raw materials are input into the extraction tank to mix the liquid, the motor drives the stirring blades to rotate through the upper rotating shaft, the stirring blades stir the mixed liquid, so that the extraction agent and the raw materials are fully mixed. After stirring is completed, the motor stops, and the stirring blades and the rotating shaft stop rotating slowly. The mixed liquid is left to stand, so that the target substance in the raw materials is absorbed by the extraction agent, the mass transfer is completed, finally, the liquid outlet valve is opened, and the raffinate is output from the liquid outlet.

[0003] The existing extraction device has the following defects: first, after stirring is completed, the motor stops running, and the residual kinetic energy of the mixed liquid, the stirring blades and the upper rotating shaft cannot be well utilized, resulting in waste of kinetic energy; second, the mixed liquid cannot be heated during the mass transfer process, resulting in a long mass transfer process. SUMMARY

[0004] The present application is proposed to solve the problems of waste of residual kinetic energy of the mixed liquid, the stirring blades and the upper rotating shaft when the motor stops, and the long mass transfer process of the existing extraction device. The extraction equipment with energy-saving function is provided. After the first motor stops, the residual kinetic energy of the mixed liquid, the stirring blades and the upper rotating shaft is used to generate heat by rubbing the upper friction plate and the lower friction plate, so as to heat the mixed liquid, improve the energy utilization rate, shorten the mass transfer process, and thus improve the extraction efficiency.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The utility model provides an extraction equipment with energy saving function, including: frame, extraction tank, first motor, upper rotating shaft, stirring blade, upper friction plate, lower rotating shaft, lower friction plate and damping mechanism, extraction tank installs on the frame, first motor installs on the upside of extraction tank, upper rotating shaft sets up vertically in the extraction tank, and the upper end of upper rotating shaft is connected with first motor, stirring blade fixedly connected in the side surface of upper rotating shaft, upper friction plate is fixedly connected horizontally in the lower end of upper rotating shaft, lower rotating shaft coaxially sets up below upper rotating shaft, and lower rotating shaft passes through the bottom of extraction tank and is rotatably connected with extraction tank, lower friction plate is fixedly connected horizontally in the upper end of lower rotating shaft, and lower friction plate is in contact with upper friction plate, damping mechanism sets up on the frame, and damping mechanism can increase the rotation resistance of lower rotating shaft to make upper friction plate and lower friction plate generate heat by friction and make upper friction plate and lower friction plate heat mixed liquid.

[0007] Through the above setting, first, the residual kinetic energy of mixed liquid, stirring blade and upper rotating shaft can be used to generate heat by friction of upper friction plate and lower friction plate to heat mixed liquid, improve energy utilization rate, shorten mass transfer process and improve extraction efficiency, second, after the intervention of damping mechanism, the speed of upper rotating shaft and stirring blade is obviously reduced, the speed difference between stirring blade and mixed liquid is increased, the disturbance effect of stirring blade on mixed liquid is increased, the mixing of extraction agent and raw material is more sufficient, and the mass transfer efficiency is improved.

[0008] Further, the bottom of the extraction tank is provided with a rotating groove vertically penetrating the extraction tank, the lower rotating shaft penetrates the rotating groove and is rotatably connected with the rotating groove, an annular limiting groove is arranged along the circumference of the rotating groove, the extraction equipment further comprises an annular support plate and a thrust bearing, the annular support plate is fixedly connected to the outer periphery of the lower rotating shaft and located in the annular limiting groove, and the thrust bearing is sleeved on the lower rotating shaft and arranged between the annular support plate and the lower side wall of the annular limiting groove.

[0009] Through the above setting, the rotating connection between the lower rotating shaft and the bottom of the extraction tank is realized; on the one hand, the thrust bearing supports the lower friction plate through the annular support plate and the lower rotating shaft, and on the other hand, the thrust bearing reduces the rotation resistance of the lower rotating shaft.

[0010] Further, the frame comprises a bottom plate, first and second support plates, first and second support members; the bottom plate is horizontally arranged below the extraction tank; the first and second support plates are arranged on opposite sides of the extraction tank, and the lower ends of the first and second support plates are fixedly connected to the bottom plate; the first support member horizontally penetrates the first support plate, and one end of the first support member is fixedly connected to one side of the upper end of the extraction tank; the second support member is coaxially arranged with the first support member, penetrates the second support plate, and one end of the second support member is fixedly connected to the other side of the upper end of the extraction tank.

[0011] Through the above setting, the bottom plate supports the extraction tank through the first and second support plates and the first and second support members.

[0012] Further, the extraction device further comprises a first gear coaxially fixedly connected to the lower end of the upper rotating shaft, the damping mechanism comprises a support, a sliding block, an arc-shaped rack and a first driving cylinder, the support is installed on the upper side of the bottom plate, the upper side of the support is provided with a horizontal sliding surface, the sliding block is slidably connected to the horizontal sliding surface, the arc-shaped rack is fixedly connected to one side of the sliding block close to the first gear, the center of the arc-shaped rack is located on the axis of the first support, the first driving cylinder can drive the arc-shaped rack to approach or move away from the first gear, the first support is rotatably connected to the first support plate, the second support is rotatably connected to the second support plate, the arc-shaped rack can be engaged with the first gear after approaching the first gear, the first gear can drive the extraction tank to rotate around the axis of the first support after rotating; the extraction device further comprises a liquid outlet, a liquid outlet valve and a liquid collecting mechanism, the liquid outlet is vertically arranged at the lower end of the extraction tank, the liquid outlet valve is installed on the liquid outlet, the liquid collecting mechanism comprises a liquid collecting pipe, a liquid collecting tank and a second driving cylinder, the liquid collecting pipe is in communication with the liquid collecting tank, the liquid collecting pipe is vertically arranged below the liquid outlet, the second driving cylinder is vertically installed on the upper side of the bottom plate, and the second driving cylinder can drive the liquid collecting pipe to move up and down so that the liquid collecting pipe is inserted into or pulled out of the liquid outlet.

[0013] Through the above arrangement, after the first motor stops, the residual kinetic energy of the upper rotating shaft, the stirring blade, the mixed liquid, the lower rotating shaft, the upper friction plate, the lower friction plate and the first gear can be used to drive the extraction tank to swing around the axis of the first support, and the mixed liquid in the extraction tank is more easily layered up and down under the action of centrifugal force, so as to speed up the extraction.

[0014] Further, the extraction device further comprises a connecting sleeve and a feeding mechanism, the second support is provided with a raw material flow channel and an extractant flow channel, the end of the connecting sleeve is fixedly connected with the second support plate, the connecting sleeve is sleeved on the second support and rotatably and sealingly connected with the second support, a first annular flow channel and a second annular flow channel are arranged along the inner periphery of the connecting sleeve, the first annular flow channel is in communication with the extraction tank through the raw material flow channel, the second annular flow channel is in communication with the extraction tank through the extractant flow channel, a first interface in communication with the first annular flow channel and a second interface in communication with the second annular flow channel are arranged on the connecting sleeve, and the feeding mechanism comprises a raw material pump capable of pumping raw materials to the first interface and an extractant pump capable of pumping extractants to the second interface.

[0015] Through the above arrangement, first, the raw material pump is always in communication with the extraction tank through the first interface, the first annular flow channel and the raw material flow channel, which facilitates the raw material pump to deliver raw materials to the extraction tank; second, the extractant pump is always in communication with the extraction tank through the second interface, the second annular flow channel and the extractant flow channel, which facilitates the extractant pump to deliver extractants to the extraction tank.

[0016] Further, the extraction device further comprises a swinging mechanism, the swinging mechanism comprising an angle sensor, a second motor, a controller, a second gear and a third gear, the angle sensor, the second motor and the controller being mounted on the first support plate, the angle sensor and the second motor being electrically connected with the controller, the angle sensor being capable of detecting the rotating angle, the rotating direction and the rotating angular velocity of the first support member, the controller controlling the operation of the second motor according to the data measured by the angle sensor, the second gear being connected with the second motor, and the third gear being coaxially fixedly connected with the first support member and engaged with the second gear.

[0017] Through the above arrangement, the swinging mechanism provides driving force for the swinging of the extraction tank, increases the length of time of the swinging of the extraction tank, further shortens the process of the stratification of the mixed liquid, and thus improves the extraction efficiency.

[0018] Further, the mounting rack is mounted on the upper side of the bottom plate, and the raw material pump and the extractant pump are both mounted on the upper side of the mounting rack. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A schematic view of the extraction device of the embodiment.

[0020] Figure 2 A front view of the extraction device of the embodiment.

[0021] Figure 3 A sectional view of the extraction device of the embodiment.

[0022] Figure 4 A Figure 3 An enlarged view of A of the embodiment.

[0023] Figure 5 A schematic view of the rotation of the extraction tank after the rotation of the first gear.

[0024] Figure 6 A schematic view of the rotation of the extraction tank driven by the swinging mechanism. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be further specifically described below by means of embodiments and in combination with the drawings.

[0026] Reference Figures 1 to 6An energy-saving extraction device includes: a frame 3, an extraction tank 4, a first motor 5, an upper rotating shaft 6, a stirring blade 7, an upper friction plate 8, a lower rotating shaft 9, a lower friction plate 10, and a damping mechanism 11; the extraction tank 4 is mounted on the frame 3; the first motor 5 is mounted on the upper side of the extraction tank 4; the upper rotating shaft 6 is vertically arranged inside the extraction tank 4, and the upper end of the upper rotating shaft 6 is connected to the first motor 5; the stirring blade 7 is fixedly connected to the side of the upper rotating shaft 6; the upper friction plate 8 is horizontally fixedly connected to the frame 3. The lower end of the upper rotating shaft 6; the lower rotating shaft 9 is coaxially arranged below the upper rotating shaft 6, passes through the bottom of the extraction tank 4 and is rotatably connected to the extraction tank 4; the lower friction plate 10 is horizontally fixedly connected to the upper end of the lower rotating shaft 9, and the lower friction plate 10 is in contact with the upper friction plate 8; the damping mechanism 11 is arranged on the frame 3, and the damping mechanism 11 can increase the rotational resistance of the lower rotating shaft 9 so that the upper friction plate 8 and the lower friction plate 10 generate heat through friction, and the upper friction plate 8 and the lower friction plate 10 heat the mixture.

[0027] With the above settings, firstly, the residual kinetic energy of the stirring blade 7 and the upper rotating shaft 6 can be used to generate heat through friction between the upper friction plate 8 and the lower friction plate 10, thereby heating the mixture, improving energy utilization, shortening the mass transfer process, and thus improving extraction efficiency; secondly, after the damping mechanism 11 intervenes, the upper rotating shaft 6 and the stirring blade 7 decelerate significantly, and the speed difference between the stirring blade 7 and the mixture increases, which can increase the stirring effect of the stirring blade 7 on the mixture, thereby making the extractant and raw materials mix more thoroughly, and thus improving mass transfer efficiency.

[0028] In this application, the frame 3 is made of steel, possessing good rigidity and strength; the extraction tank 4 is basically a cylindrical body extending vertically; the first motor 5 is installed at the center of the upper end of the extraction tank 4; the upper rotating shaft 6 is coaxially arranged with the extraction tank 4; the stirring blades 7 are installed on the outer periphery of the lower end of the upper rotating shaft 6, and the stirring blades 7 are evenly arranged; the upper friction plate 8 is circular, and the lower end of the upper rotating shaft 6 is installed at the center of the upper friction plate 8; the lower friction plate 10 is circular and coincides with the upper friction plate 8, with the upper friction plate 8 pressing against the upper friction plate 8; the lower rotating shaft 9 can rotate around its axis, but the lower rotating shaft 9 is basically unable to move up and down, thereby allowing the lower friction plate 10 to press against the lower side of the upper friction plate 8; during extraction, after the extractant and raw material are input into the extraction tank 4, the extractant and raw material mix to form a mixture 200, which covers the upper side of the stirring blades. The first motor 5 drives the upper rotating shaft 6 and the stirring blades 7 to rotate. See [reference needed]. Figure 3, the stirring blade 7 stirs the mixed liquid, so that the extractant and the raw material are uniformly mixed, and at the same time, the mixed liquid rotates with the stirring blade 7 under the action of the stirring blade 7; the upper rotating shaft 6 drives the lower rotating shaft 9 to rotate through the upper friction plate 8 and the lower friction plate 10, at this time, the damping mechanism has not intervened, and the rotating resistance of the lower rotating shaft is small; after the stirring reaches the preset time length, the first motor 5 stops, and under the action of inertia, the mixed liquid, the upper rotating shaft 6, the stirring blade 7, the upper friction plate 8, the lower friction plate 10 and the lower rotating shaft 9 continue to rotate, the damping mechanism 11 intervenes, the rotating resistance of the lower rotating shaft 9 increases, the damping mechanism applies a reverse torque to the lower rotating shaft 9, the lower rotating shaft 9 slows down, the friction between the upper friction plate 8 and the lower friction plate 10 increases, and the rotating speed of the upper rotating shaft 6 and the stirring blade 7 decreases; wherein, the greater the resistance applied by the damping mechanism to the lower rotating shaft, the more obvious the deceleration of the lower rotating shaft, and the greater the friction between the upper friction plate 8 and the lower friction plate 10; first, in the present application, the friction between the upper friction plate 8 and the lower friction plate increases after the damping mechanism intervenes, until the upper friction plate 8 and the lower friction plate 10 slip and generate heat, the heat generated is absorbed by the mixed liquid, the temperature of the mixed liquid rises, and the efficiency of the extraction can be improved; second, after the damping mechanism 11 intervenes, the upper rotating shaft 6 and the stirring blade 7 slow down, and the rotating speed of the stirring blade 7 will be less than that of the mixed liquid, that is, the speed difference between the stirring blade 7 and the mixed liquid will increase, the disturbance effect of the stirring blade 7 on the mixed liquid will increase, and the mixed liquid will be further stirred before the stirring blade 7 stops rotating, so that the extractant and the raw material are more uniformly mixed; the existing extraction device does not have a damping mechanism, and after the motor stops running, the stirring blade, the upper rotating shaft and the mixed liquid slowly stop rotating, the rotating speed of the mixed liquid and the rotating speed of the stirring blade 7 are basically the same during the whole process, the disturbance effect of the stirring blade 7 on the mixed liquid is small before the stirring blade 7 stops, and the uniformity of the mixing of the extractant and the raw material cannot be effectively improved; third, after the damping mechanism 11 intervenes, the mixed liquid in motion will continue to drive the stirring blade 7, the upper rotating shaft 6 and the upper friction plate 8 to continue to rotate, that is, part of the kinetic energy in the mixed liquid is converted into heat energy of the upper friction plate 8 and the lower friction plate 10, so as to increase the temperature of the mixed liquid itself, and the residual kinetic energy of the mixed liquid is effectively utilized.

[0029] As an implementation manner, the bottom of the extraction tank 4 is provided with a rotating groove 12 vertically penetrating the extraction tank 4, the lower rotating shaft 9 penetrates the rotating groove 12 and is rotationally connected with the rotating groove 12, an annular limiting groove 13 is arranged along the circumference of the rotating groove 12, the extraction device further comprises an annular support plate 14 and a thrust bearing 15, the annular support plate 14 is fixedly connected to the outer periphery of the lower rotating shaft 9 and located in the annular limiting groove 13, and the thrust bearing 15 is sleeved on the lower rotating shaft 9 and arranged between the annular support plate 14 and the lower side wall of the annular limiting groove 13.

[0030] Through the above setting, the rotation connection between the lower rotating shaft 9 and the bottom of the extraction tank 4 is realized; the thrust bearing 15 can support the lower friction plate 10 through the annular support plate 14 and the lower rotating shaft 9 on the one hand, and on the other hand, the thrust bearing 15 also reduces the rotating resistance of the lower rotating shaft 9.

[0031] As an implementation manner, the rack 3 comprises a bottom plate 31, a first support plate 32, a second support plate 33, a first support 34 and a second support 35; the bottom plate 31 is horizontally arranged below the extraction tank 4; the first support plate 32 and the second support plate 33 are arranged on opposite sides of the extraction tank 4, and the lower ends of the first support plate 32 and the second support plate 33 are fixedly connected with the bottom plate 31; the first support 34 horizontally passes through the first support plate 32, and one end of the first support 34 is fixedly connected with one side of the upper end of the extraction tank 4; the second support 35 is coaxially arranged with the first support 34, the second support 35 passes through the second support plate 33, and one end of the second support 35 is fixedly connected with the other side of the upper end of the extraction tank 4.

[0032] Through the above setting, the bottom plate 31 supports the extraction tank 4 through the first support plate 32, the second support plate 33, the first support 34 and the second support 35.

[0033] As an implementation manner, the extraction device further comprises a first gear 16, the first gear 16 is coaxially fixedly connected with the lower end of the lower rotating shaft 9, the damping mechanism 11 comprises a bracket 111, a sliding block 112, an arc-shaped rack 113 and a first driving cylinder 114, the bracket 111 is installed on the upper side of the bottom plate 31, the upper side of the bracket 111 is provided with a horizontal sliding surface, the sliding block 112 is slidingly connected with the horizontal sliding surface, the arc-shaped rack 113 is fixedly connected with one side of the sliding block 112 close to the first gear 16, the center of the arc-shaped rack 113 is located on the axis of the first support 34, the first driving cylinder 114 can drive the arc-shaped rack 113 to be close to or away from the first gear 16, the first support 34 is rotationally connected with the first support plate 32, the second support 35 is rotationally connected with the second support plate 33, the arc-shaped rack 113 can be engaged with the first gear 16 after being close to the first gear 16, the first gear 16 can drive the extraction tank 4 to rotate around the axis of the first support 34 after rotating; the extraction device further comprises a liquid outlet 17, a liquid outlet valve 18 and a liquid collecting mechanism, the liquid outlet 17 is vertically arranged at the lower end of the extraction tank 4, the liquid outlet valve 18 is installed on the liquid outlet 17, and the liquid collecting mechanism comprises a liquid collecting pipe 19, a liquid collecting tank (not shown in the figure) and a second driving cylinder 20, the liquid collecting pipe 19 is in communication with the liquid collecting tank, the liquid collecting pipe 19 is vertically arranged below the liquid outlet 17, and the second driving cylinder 20 is vertically installed on the upper side of the bottom plate 31, the second driving cylinder 20 can drive the liquid collecting pipe 19 to move up and down so that the liquid collecting pipe 19 is inserted into or pulled out of the liquid outlet 17.

[0034] By the above arrangement, after the first motor 5 stops, the residual kinetic energy of the upper rotating shaft 6, the stirring blade 7, the mixed liquid, the lower rotating shaft 9, the upper friction plate 8, the lower friction plate 10 and the first gear 16 can be used to drive the extraction tank 4 to swing around the axis of the first support 34, and the mixed liquid in the extraction tank 4 is more easily layered under the action of centrifugal force, so as to speed up the extraction.

[0035] In this application, initially, the liquid collecting pipe 19 is disconnected from the liquid outlet 17, and the liquid outlet valve 18 is closed; the arc-shaped rack 113 is disconnected from the first gear 16, and the damping mechanism 11 does not intervene; when the rotating speed of the first motor 5 is relatively fast, the kinetic energy of the upper rotating shaft 6, the upper friction plate 8, the stirring blade 7, the lower friction plate 10, the lower rotating shaft 9 and the first gear 16 is relatively large, as shown in Figure 3 ; after the stirring time of the first motor 5 reaches the preset length of time, the first motor 5 stops running, and the residual kinetic energy of the upper rotating shaft 6, the upper friction plate 8, the stirring blade 7, the lower friction plate 10, the lower rotating shaft 9 and the first gear 16 is relatively large; the first drive cylinder 114 drives the sliding block and the arc-shaped rack 113 to move towards the first gear 16, the arc-shaped rack 113 is engaged with the first gear 16, and the damping mechanism 11 intervenes; on the one hand, the rotating resistance of the first gear 16 is increased, the upper friction plate 8 and the lower friction plate 10 slip and generate heat, and a part of the residual kinetic energy in the mixed liquid, the upper rotating shaft 6, the stirring blade 7, the upper friction plate 8, the lower friction plate 10 and the lower rotating shaft 9 is converted into heat energy to heat the mixed liquid; on the other hand, the first gear 16 rolls along the arc-shaped rack 113, and the extraction tank 4 rotates upward around the axis of the first support 34, as shown in Figure 5 At this time, the driving force of the first gear 16 mainly comes from the pushing force of the mixed liquid rotating under the action of inertia in the extraction tank 4 to the stirring blade 7, and a part of the residual kinetic energy in the mixed liquid, the upper rotating shaft 6, the stirring blade 7, the upper friction plate 8, the lower friction plate 10 and the lower rotating shaft 9 is converted into gravitational potential energy for the swing of the extraction tank 4. After the first gear 16 stops rotating, the extraction tank 4 swings to the highest point, the first drive cylinder 114 is shortened, the arc-shaped rack 113 is disconnected from the first gear 16, and the extraction tank 4 reciprocally swings around the axis of the first support 34 under the action of gravity. During the swinging process, the mixed liquid inside is subjected to downward centrifugal force, which can help the mixed liquid inside to be layered and speed up the extraction process. Finally, the extraction tank 4 loses the driving force of the first gear 16 and slowly stops swinging. After a period of time, when the mixed liquid in the extraction tank 4 is fully layered, the second drive cylinder 20 drives the liquid collecting pipe 19 to be inserted into the liquid outlet 17, the liquid outlet valve 18 is opened, and the raffinate liquid enters the liquid collecting tank through the liquid outlet 17 and the liquid collecting pipe 19.

[0036] As an implementation form, the extraction device further comprises the connecting sleeve 21 and the feeding mechanism, the second support 35 is provided with a raw material flow channel 351 and an extractant flow channel 352, the end of the connecting sleeve is fixedly connected with the second support plate, the connecting sleeve is sleeved on the second support and is rotationally and sealingly connected with the second support, the first annular flow channel 211 and the second annular flow channel 212 are arranged along the inner periphery of the connecting sleeve 21, the first annular flow channel 211 is communicated with the extraction tank 4 through the raw material flow channel 351, the second annular flow channel 212 is communicated with the extraction tank 4 through the extractant flow channel 352, the connecting sleeve 21 is provided with the first interface 213 communicated with the first annular flow channel 211 and the second interface 214 communicated with the second annular flow channel 212, and the feeding mechanism comprises a raw material pump 22 capable of pumping the raw material to the first interface 213 and an extractant pump 23 capable of pumping the extractant to the second interface 214.

[0037] Through the above arrangement, first, the raw material pump 22 is always communicated with the extraction tank 4 through the first interface 213, the first annular flow channel 211 and the raw material flow channel 351, so that the raw material pump 22 conveniently delivers the raw material to the extraction tank 4; second, the extractant pump 23 is always communicated with the extraction tank 4 through the second interface 214, the second annular flow channel 212 and the extractant flow channel 352, so that the extractant pump 23 conveniently delivers the extractant to the extraction tank 4.

[0038] As an implementation form, the extraction device further comprises a swinging mechanism 24, the swinging mechanism 24 comprises an angle sensor 241, a second motor 242, a controller (not shown in the figure), a second gear 243 and a third gear 244, the angle sensor 241, the second motor 242 and the controller are all mounted on the first support plate 32, the angle sensor 241 and the second motor 242 are both electrically connected with the controller, the angle sensor 241 can detect the rotation angle, the rotation direction and the rotation angular velocity of the first support 34, according to the data measured by the angle sensor 241, the controller controls the second motor 242 to operate, the second gear 243 is connected with the second motor 242, the third gear 244 is coaxially and fixedly connected with the first support 34, and the third gear 244 is engaged with the second gear 243.

[0039] Through the above arrangement, the swinging mechanism 24 provides driving force for the swinging of the extraction tank 4, increases the swinging time length of the extraction tank 4, further shortens the process of the layered mixing liquid, and thus improves the extraction efficiency.

[0040] In the present application, refer to Figure 5When the first gear 16 drives the extraction tank 4 to rotate around the axis of the first support 34, the angle sensor 241 detects the rotation angular velocity, rotation direction and rotation position of the first support 34 in real time. When the rotation angular velocity of the first support 34 is zero, the first support 34 rotates to the maximum angle, the extraction tank 4 swings to the highest point, the controller controls the first driving cylinder 114, the arc-shaped rack 113 is disengaged from the first gear 16, that is, the damping mechanism 11 exits; the extraction tank 4 freely swings downward under the action of gravity, the first support 34 synchronously rotates around the axis of the first support 34 with the extraction tank 4, and the angle sensor 241 obtains the rotation condition of the extraction tank 4 by detecting the rotation angular velocity, rotation direction and rotation angle of the first support 34. When the swing amplitude of the extraction tank 4 decreases, the controller controls the second motor 242, the second motor 242 provides driving force for the extraction tank 4 through the second gear 243, the third gear 244 and the first support 34, see Figure 6 The extraction tank 4 reciprocatingly swings with a stable swing amplitude, and the mixed solution is quickly and stably stratified under the action of centrifugal force; after the swing duration reaches the preset duration, the second motor 242 stops moving, the extraction tank 4 slowly stops swinging after losing power, and the extraction tank 4 stops after stopping.

[0041] As an implementation manner, the installation rack 25 is installed on the upper side of the bottom plate 31, and the raw material pump 22 and the extractant pump 23 are both installed on the upper side of the installation rack 25.

[0042] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. An extraction device with energy-saving function, characterized in that, The extraction device comprises a rack, an extraction tank mounted on the rack, a first motor mounted on the upper side of the extraction tank, an upper rotating shaft vertically arranged in the extraction tank and having an upper end connected with the first motor, a stirring blade fixedly connected to the side of the upper rotating shaft, an upper friction plate fixedly connected to the lower end of the upper rotating shaft, a lower rotating shaft coaxially arranged below the upper rotating shaft, penetrating through the bottom of the extraction tank and rotationally connected with the extraction tank, a lower friction plate fixedly connected to the upper end of the lower rotating shaft and in contact with the upper friction plate, and a damping mechanism arranged on the rack and capable of increasing the rotating resistance of the lower rotating shaft so as to generate heat by friction between the upper friction plate and the lower friction plate and heat the mixed solution. The rack comprises a bottom plate horizontally arranged below the extraction tank, first and second support plates arranged on opposite sides of the extraction tank, a first support member horizontally penetrating through the first support plate and having one end fixedly connected to one side of the upper end of the extraction tank, and a second support member coaxially arranged with the first support member, penetrating through the second support plate and having one end fixedly connected to the other side of the upper end of the extraction tank. The extraction tank is provided with a rotating groove vertically penetrating through the extraction tank, the lower rotating shaft penetrates through the rotating groove and is rotationally connected with the rotating groove, an annular limiting groove is arranged along the circumference of the rotating groove, the extraction device further comprises an annular support plate fixedly connected to the outer periphery of the lower rotating shaft and located in the annular limiting groove, and a thrust bearing is sleeved on the lower rotating shaft and arranged between the annular support plate and the lower side wall of the annular limiting groove. The lower ends of the first and second support plates are fixedly connected with the bottom plate. The first support member is rotationally connected with the first support plate, and the second support member is rotationally connected with the second support plate. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The energy-saving extraction apparatus according to claim 1, wherein ​ 3. The energy-saving extraction device according to claim 1, characterized in that, ​ 4. The energy-saving extraction apparatus according to claim 3, wherein ​ The extraction device further comprises a liquid outlet, a liquid outlet valve, and a liquid collecting mechanism, the liquid outlet is vertically arranged at the lower end of the extraction tank, the liquid outlet valve is installed on the liquid outlet, the liquid collecting mechanism comprises a liquid collecting pipe, a liquid collecting tank, and a second driving cylinder, the liquid collecting pipe is in communication with the liquid collecting tank, the liquid collecting pipe is vertically arranged below the liquid outlet, and the second driving cylinder is vertically installed on the upper side of the bottom plate, the second driving cylinder can drive the liquid collecting pipe to move up and down so that the liquid collecting pipe is inserted into or pulled out of the liquid outlet.

5. The energy-saving extraction apparatus according to claim 4, wherein The second support member is provided with a raw material flow channel and an extractant flow channel, the end of the connecting sleeve is fixedly connected with the second support plate, the connecting sleeve is sleeved on the second support member and is in rotary sealing connection with the second support member, a first annular flow channel and a second annular flow channel are arranged along the inner periphery of the connecting sleeve, the first annular flow channel is in communication with the extraction tank through the raw material flow channel, the second annular flow channel is in communication with the extraction tank through the extractant flow channel, the connecting sleeve is provided with a first interface in communication with the first annular flow channel and a second interface in communication with the second annular flow channel, and the feeding mechanism comprises a raw material pump and an extractant pump.

6. The energy-saving extraction apparatus according to claim 4, wherein The device further comprises a swinging mechanism, the swinging mechanism comprises an angle sensor, a second motor, a controller, a second gear, and a third gear, the angle sensor, the second motor, and the controller are all installed on the first support plate, the angle sensor and the second motor are electrically connected with the controller, the angle sensor can detect the rotation angle, rotation direction, and rotation angular velocity of the first support member, according to the data detected by the angle sensor, the controller controls the operation of the second motor, the second gear is connected with the second motor, the third gear is coaxially fixedly connected with the first support member, and the third gear is in meshing connection with the second gear.

7. The energy-saving extraction apparatus according to claim 5, wherein The device further comprises a mounting frame, the mounting frame is installed on the upper side of the bottom plate, and the raw material pump and the extractant pump are both installed on the upper side of the mounting frame.

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