A magnetic suspension centrifugal extractor

Abstract

The invention discloses a magnetic levitation centrifugal extractor, comprising an extractor body and a mixing unit; the mixing unit comprises a first stirring shaft and a second stirring shaft, the first stirring shaft and the second stirring shaft rotate relative to each other to mix an extractant and wastewater; a stirring assembly is used to fully mix the extractant and the wastewater, the stirring assembly is connected to the first stirring shaft and the second stirring shaft, the magnetic levitation centrifugal extractor, through the stirring assembly, uses a first connecting rod and a second connecting plate to connect a corresponding number of first stirring plates and second stirring plates, under the driving action of the driving assembly, the first stirring plates and the second stirring plates rotate in opposite directions about the axis of the first stirring shaft and the second stirring shaft, so that the wastewater and the extractant in the extractor body can be stirred and mixed more evenly, and the problem of incomplete stirring in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic suspension, in particular to a magnetic suspension centrifugal extractor. Background Art

[0002] Centrifugal extraction technology is a practical technology that uses centrifugal force field to achieve liquid-liquid contact mass transfer and phase separation. It is a new type of high-efficiency separation technology that combines liquid-liquid extraction and centrifugal technology. Compared with other extraction technologies, it has short contact time between two-phase materials and fast phase separation speed.

[0003] According to an extraction machine disclosed in Patent No. CN206881204U2, an extractant is sprayed out through a plurality of liquid outlet holes of a liquid inlet pipe in a mixing chamber, so that the extractant and the original solution are fully contacted, the contact area between the extractant and the original solution is increased, and they are fully mixed, thereby avoiding the waste of extraction raw materials due to insufficient mixing of the two liquids and improving the utilization rate of the raw materials in the extraction process.

[0004] However, when wastewater and extractant are injected into a centrifugal extractor in a certain proportion for mixing and stirring, the extractant is likely to fall to the bottom of the drum and settle during the rotation of the drum. Under the centrifugal action of the drum, some of the extractant that is not completely dissolved adheres to the outer wall of the drum, thereby affecting the mixing effect of the extractant and wastewater. The above operation needs to be repeated many times, affecting the work efficiency. For this reason, we propose a magnetic levitation centrifugal extractor. Summary of the invention

[0005] The object of the present invention is to provide a magnetic suspension centrifugal extractor to solve the problems raised in the above background.

[0006] To achieve the above object, the present invention provides the following technical solution: a magnetic suspension centrifugal extractor, comprising an extractor body, and further comprising:

[0007] Mixing unit;

[0008] The mixing unit comprises a first stirring shaft and a second stirring shaft, wherein the first stirring shaft and the second stirring shaft rotate relative to each other to mix the extractant and the wastewater;

[0009] A stirring assembly, used for fully mixing the extractant and the wastewater, wherein the stirring assembly is connected to the first stirring shaft and the second stirring shaft;

[0010] A driving assembly, used for driving the stirring assembly to rotate, wherein the driving assembly is connected to the stirring assembly;

[0011] The cleaning unit is used for cleaning the mixed liquid on the inner wall of the extractor body, and the cleaning unit is arranged in the extractor body.

[0012] Preferably, the cleaning unit comprises:

[0013] A stirring and scraping assembly, used for stirring the liquid in the extractor body and scraping the liquid on the inner wall thereof, wherein the stirring and scraping assembly is arranged on the second stirring shaft;

[0014] The cleaning component is used to clean impurities on the side wall of the stirring and scraping component, and the cleaning component is arranged on the stirring and scraping component.

[0015] Preferably, the driving assembly comprises:

[0016] A driving bevel gear, wherein the driving bevel gear is connected to the first stirring shaft;

[0017] A first driven bevel gear, wherein two groups of the first driven bevel gears are respectively arranged on both sides of the driving bevel gear;

[0018] A second driven bevel gear, wherein the second driven bevel gear is meshed and connected with the first driven bevel gear, and the second driven bevel gear is connected with the second stirring shaft;

[0019] The power device drives the active bevel gear to rotate, and the active bevel gear is transmitted to the first driven bevel gear and the second driven bevel gear.

[0020] Preferably, the stirring assembly comprises:

[0021] a first connecting rod, the first connecting rod being connected to the first stirring shaft;

[0022] a first stirring plate, the first stirring plate being connected to the first connecting rod and being used for mixing wastewater and an extractant;

[0023] a second connecting rod, the second connecting rod being connected to the second stirring shaft;

[0024] a second stirring plate, the second stirring plate being connected to the second connecting rod and being used for mixing wastewater and extractant;

[0025] The power device drives the first stirring plate and the second stirring plate to rotate relative to each other, so that the extractant and the wastewater are fully contacted and mixed.

[0026] Preferably, a plurality of the first connecting rods and the second connecting rods are evenly arranged in a circumferential direction of the first stirring shaft and the second stirring shaft, respectively.

[0027] Preferably, the stirring and scraping components are symmetrically arranged on both sides of the second stirring shaft.

[0028] Preferably, the stirring and scraping assembly comprises:

[0029] A fixed plate, the fixed plate is connected to the second stirring shaft and a slide rail is provided on the fixed plate;

[0030] A moving block, wherein the moving block is slidably connected in the slide rail and a connecting plate is provided on the moving block;

[0031] A stirring scraper, the stirring scraper is connected to the connecting plate;

[0032] The power device drives the moving block to move along the slide rail, so that the stirring scraper moves along the track of the slide rail, stirring the inner wall of the extractor body and scraping away the impurities on the inner wall.

[0033] Preferably, the cleaning component comprises:

[0034] A first driving gear, wherein the first driving gear is arranged on the stirring scraper;

[0035] A gear belt, the gear belt is meshed and connected with the outer wall of the first driving gear;

[0036] A second driven gear, the second driven gear is arranged on the stirring scraper, and the second driven gear is meshed and connected with the gear belt;

[0037] A scraper is connected to the gear belt and is used to scrape impurities off the outer wall of the stirring scraper.

[0038] Preferably, one side of the stirring scraper is in contact with the inner wall of the extractor body.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The present invention provides a stirring assembly, and utilizes a first connecting rod and a second connecting plate to connect a corresponding number of first stirring plates and second stirring plates. Under the driving action of the driving assembly, the first stirring plates and the second stirring plates rotate in opposite directions about the axes of the first stirring shaft and the second stirring shaft, thereby achieving more uniform stirring and mixing of wastewater and extractant in the extractor body, and solving the existing problem of incomplete stirring.

[0041] The present invention uses a stirring and scraping assembly to move the stirring scraper along the track of the slide rail, so that the stirring scraper rotates and stirs with the second stirring shaft as the axis, and the stirring scraper can move along the track of the slide rail, so that the stirring scraper contacts the inner wall of the extractor body. When in contact, the stirring scraper scrapes the inner wall from top to bottom, thereby further mixing the wastewater and the extractant and scraping off the impurities attached to the side wall, solving the existing problem of impurities attached to the side wall.

[0042] The present invention sets up a cleaning component and utilizes a scraper to move along with the gear belt, so that when the stirring scraper enters the waste liquid after scraping off the attached waste once, the scraper, driven by the gear belt, scrapes off the waste remaining on the side wall of the stirring scraper and is immersed in the waste water during its movement, thereby achieving the cleaning effect on the stirring scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 It is a schematic diagram of the front view of the overall section of the present invention;

[0045] Figure 3 It is a schematic diagram of the structure of the overall partial cross section of the present invention on the positive axis side;

[0046] Figure 4 It is a schematic diagram of the structure of the mixing unit of the present invention;

[0047] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a stirring and scraping assembly of the present invention;

[0048] Figure 6 This is a schematic diagram of the moving structure of the stirring scraper of the present invention;

[0049] Figure 7 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0050] In the figure: 100-extractor body; 1-mixing unit; 11-first stirring shaft; 12-second stirring shaft; 13-stirring assembly; 131-first connecting rod; 132-first stirring plate; 133-second connecting rod; 134-second stirring plate; 14-driving assembly; 141-active bevel gear; 142-first driven bevel gear; 143-second driven bevel gear; 2-cleaning unit; 21-stirring and scraping assembly; 211-fixed plate; 212-slide rail; 213-moving block; 214-connecting plate; 215-stirring scraper; 22-cleaning assembly; 221-first active gear; 222-gear belt; 223-second driven gear; 224-scraper. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0052] See also Figure 1-3The present invention provides a technical solution: a magnetic suspension centrifugal extractor, comprising an extractor body 100 (the extractor body 100 includes a drum, and an outlet for a high-density liquid and an outlet for a low-density liquid are respectively provided on both sides of the top of the extractor body 100), and further comprising:

[0053] Mixing unit 1;

[0054] The mixing unit 1 comprises a first stirring shaft 11 and a second stirring shaft 12, wherein the first stirring shaft 11 and the second stirring shaft 12 rotate relative to each other to mix the extractant and the wastewater;

[0055] A stirring assembly 13, used for fully mixing the extractant and the wastewater, wherein the stirring assembly 13 is connected to the first stirring shaft 11 and the second stirring shaft 12;

[0056] A driving assembly 14, used for driving the stirring assembly 13 to rotate, wherein the driving assembly 14 is connected to the stirring assembly 13;

[0057] A cleaning unit 2, used for cleaning the mixed liquid on the inner wall of the extractor body 100, wherein the cleaning unit 2 is disposed inside the extractor body 100;

[0058] By using the driving assembly 14 to drive the first stirring shaft 11 and the second stirring shaft 12 to rotate relative to each other, the wastewater and the extractant in the drum can be relatively tumbled, so that the mixing effect between the wastewater and the extractant is better;

[0059] The space where the wastewater and the extractant are mixed is actually a rotating drum, which is generally referred to as the interior of the extractor body 100;

[0060] The extractor body 100 belongs to the prior art and will not be described in detail here. The extractor body 100 uses magnetic suspension to rotate the drum.

[0061] See also Figure 3-4 , the driving assembly 14 comprises:

[0062] A driving bevel gear 141, wherein the driving bevel gear 141 is connected to the first stirring shaft 11;

[0063] First driven bevel gears 142, two groups of the first driven bevel gears 142 are respectively arranged on both sides of the driving bevel gear 141;

[0064] a second driven bevel gear 143 , wherein the second driven bevel gear 143 is meshed and connected with the first driven bevel gear 142 , and the second driven bevel gear 143 is connected with the second stirring shaft 12 ;

[0065] The power device drives the active bevel gear 141 to rotate, and the active bevel gear 141 is transmitted to the first driven bevel gear 142 and the second driven bevel gear 143;

[0066] The power device is preferably a motor, and is connected to the active bevel gear 141;

[0067] The motor starts to drive the active bevel gear 141 to rotate, and the active bevel gear 141 rotates to transmit the transmission to the first driven bevel gear 142 meshingly connected with its two ends, and the first driven bevel gear 142 rotates to transmit the transmission to the second driven bevel gear 143, and the rotation direction of the active bevel gear 141 is opposite to that of the second driven bevel gear 143.

[0068] See also Figure 2-4 , the stirring assembly 13 comprises:

[0069] A first connecting rod 131, wherein the first connecting rod 131 is connected to the first stirring shaft 11;

[0070] A first stirring plate 132, wherein the first stirring plate 132 is connected to the first connecting rod 131 and is used for mixing wastewater and an extractant;

[0071] A second connecting rod 133, wherein the second connecting rod 133 is connected to the second stirring shaft 12;

[0072] A second stirring plate 134, the second stirring plate 134 is connected to the second connecting rod 133, and is used for mixing wastewater and extractant;

[0073] The power device drives the first stirring plate 132 and the second stirring plate 134 to rotate relative to each other, so that the extractant and the wastewater are fully contacted and mixed;

[0074] The driving bevel gear 141 is connected to the first stirring shaft 11, and the first stirring shaft 11 is connected to the first connecting rod 131, so that the first stirring plate 132 connected to the first connecting rod 131 rotates, so that the first stirring plate 132 stirs the wastewater and the extractant;

[0075] The second driven bevel gear 143 drives the second stirring shaft 12 to rotate, thereby driving the second connecting rod 133 and the second stirring plate 134 to rotate, and the active bevel gear 141 rotates in opposite directions to the second driven bevel gear 143, so that the stirring directions between the first stirring plate 132 and the second stirring plate 134 are opposite, thereby achieving sufficient stirring of the wastewater and the extractant.

[0076] See also Figure 4 The first connecting rods 131 and the second connecting rods 133 are evenly arranged in multiple groups along the circumferential directions of the first stirring shaft 11 and the second stirring shaft 12 respectively;

[0077] The present invention is preferably set to three groups, but is not limited thereto, and can be set specifically according to the actual use of wastewater and extractant;

[0078] Setting it into multiple groups helps to achieve better mixing results. Embodiment 2

[0079] See also Figure 2-3 and Figure 5-7 , wherein the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment, and for the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0080] See also Figure 2-3 , the cleaning unit 2 comprises:

[0081] A stirring and scraping assembly 21 is used to stir the liquid in the extractor body 100 and scrape the liquid on the inner wall thereof. The stirring and scraping assembly 21 is disposed on the second stirring shaft 12;

[0082] The cleaning component 22 is used to clean impurities on the side wall of the stirring and scraping component 21 , and the cleaning component 22 is arranged on the stirring and scraping component 21 .

[0083] See also Figure 2 The stirring and scraping components 21 are symmetrically arranged on both sides of the second stirring shaft 12. The two groups are arranged to help to better scrape away impurities attached to the inner wall of the extraction machine body 100.

[0084] See also Figure 5-6 , the stirring and scraping assembly 21 comprises:

[0085] A fixed plate 211, the fixed plate 211 is connected to the second stirring shaft 12, and a slide rail 212 is provided on the fixed plate 211;

[0086] A moving block 213, wherein the moving block 213 is slidably connected in the slide rail 212, and a connecting plate 214 is provided on the moving block 213;

[0087] A stirring scraper 215, wherein the stirring scraper 215 is connected to the connecting plate 214;

[0088] The power device drives the moving block 213 to move along the slide rail 212, so that the stirring scraper 215 moves along the track of the slide rail 212, stirring the inner wall of the extractor body 100 and scraping away the impurities on the inner wall;

[0089] The power device is preferably a cylinder, which is arranged on the fixed plate 211 and is not marked in the figure;

[0090] The cylinder is started, pushing the moving block 213 to move along the track of the slide rail 212. The moving block 213 causes the connecting plate 214 and the stirring scraper 215 connected to the connecting plate 214 to move together with the moving block 213. The stirring scraper 215 first rotates with the second stirring shaft 12 to scrape the inner wall of the drum. And with the push of the cylinder, the stirring scraper 215 gradually moves away from the inner wall of the drum and approaches the second stirring shaft 12, so that the stirring scraper 215 is immersed in the wastewater, which can directly wash away some impurities on the side wall.

[0091] See also Figure 6 One side of the stirring scraper 215 is in contact with the inner wall of the extractor body 100 , and the stirring scraper 215 can be in contact with the side wall of the extractor body 100 to effectively scrape away impurities on the side wall.

[0092] See also Figure 7 , the cleaning component 22 comprises:

[0093] A first driving gear 221, wherein the first driving gear 221 is disposed on the stirring scraper 215;

[0094] A gear belt 222, wherein the gear belt 222 is meshedly connected with an outer wall of the first driving gear 221;

[0095] a second driven gear 223 , wherein the second driven gear 223 is disposed on the stirring scraper 215 , and the second driven gear 223 is meshedly connected with the gear belt 222 ;

[0096] A scraper 224, the scraper 224 is connected to the gear belt 222, and is used to scrape impurities on the outer wall of the stirring scraper 215;

[0097] When in use, the motor is connected to the first driving gear 221, which is not shown to be started in the figure, and drives the first driving gear 221 to rotate, so that the first driving gear 221 drives the gear belt 222 and the second driven gear 223 to rotate, so that the gear belt 222 can move cyclically, and the shape of the gear belt 222 is the same as that of the stirring scraper 215, and drives the scraper 224 to run along the gear belt 222, while enabling the scraper 224 to clean the impurities attached to the side wall of the stirring scraper 215;

[0098] It should be noted that when the stirring scraper 215 is in close contact with the inner wall of the drum, the scraper 224 cannot move to the position where it is in close contact with the side wall of the drum. When the stirring scraper 215 is immersed in a position close to the second stirring shaft 12, the scraper 224 moves accordingly to the side wall where the stirring scraper 215 is in close contact with the drum, thereby cleaning it.

[0099] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0100] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic suspension centrifugal extractor, comprising an extractor body (100), characterized in that: Also includes: Mixing unit (1); The mixing unit (1) comprises a first stirring shaft (11) and a second stirring shaft (12), wherein the first stirring shaft (11) and the second stirring shaft (12) rotate relative to each other to mix the extractant and the wastewater; A stirring component (13) for fully mixing the extractant and the wastewater, wherein the stirring component (13) is connected to the first stirring shaft (11) and the second stirring shaft (12); A driving assembly (14) for driving the stirring assembly (13) to rotate, the driving assembly (14) being connected to the stirring assembly (13); A cleaning unit (2) for cleaning the mixed liquid on the inner wall of the extraction machine body (100), wherein the cleaning unit (2) is arranged in the extraction machine body (100); The cleaning unit (2) comprises: a stirring and scraping assembly (21), used for stirring the liquid in the extractor body (100) and scraping the liquid on the inner wall of the extractor body (100), wherein the stirring and scraping assembly (21) is arranged on the second stirring shaft (12); A cleaning component (22) is used to clean impurities on the outer wall of the stirring and scraping component (21), and the cleaning component (22) is arranged on the stirring and scraping component (21); The stirring and scraping assembly (21) comprises: A fixed plate (211), the fixed plate (211) being connected to the second stirring shaft (12), and a slide rail (212) being provided on the fixed plate (211); A moving block (213), the moving block (213) being slidably connected in the slide rail (212), and a connecting plate (214) being provided on the moving block (213); A stirring scraper (215), wherein the stirring scraper (215) is connected to the connecting plate (214); The power device drives the moving block (213) to move along the slide rail (212), and the stirring scraper (215) first scrapes away impurities on the inner wall of the extractor body (100), and then gradually moves away from the inner wall of the extractor body (100); The cleaning component (22) comprises: A first driving gear (221), wherein the first driving gear (221) is arranged on the stirring scraper (215); A gear belt (222), wherein the gear belt (222) is meshingly connected with an outer wall of the first driving gear (221); a second driven gear (223), the second driven gear (223) being arranged on the stirring scraper (215), and the second driven gear (223) being meshingly connected with the gear belt (222); A scraper (224), the scraper (224) is connected to the gear belt (222) and is used to scrape away impurities on the outer wall of the stirring scraper (215).

2. A magnetic suspension centrifugal extractor according to claim 1, characterized in that: The driving assembly (14) comprises: A driving bevel gear (141), the driving bevel gear (141) being connected to the first stirring shaft (11); First driven bevel gears (142), two sets of the first driven bevel gears (142) are respectively arranged on both sides of the driving bevel gear (141); a second driven bevel gear (143), the second driven bevel gear (143) being meshed and connected with the first driven bevel gear (142), and the second driven bevel gear (143) being connected with the second stirring shaft (12); The power device drives the active bevel gear (141) to rotate, and the active bevel gear (141) is driven by the first driven bevel gear (142) and the second driven bevel gear (143).

3. A magnetic suspension centrifugal extractor according to claim 1, characterized in that: The stirring assembly (13) comprises: A first connecting rod (131), the first connecting rod (131) being connected to the first stirring shaft (11); a first stirring plate (132), the first stirring plate (132) being connected to the first connecting rod (131) and being used for mixing wastewater and an extractant; a second connecting rod (133), the second connecting rod (133) being connected to the second stirring shaft (12); a second stirring plate (134), the second stirring plate (134) being connected to the second connecting rod (133) and being used for mixing wastewater and an extractant; The power device drives the first stirring plate (132) and the second stirring plate (134) to rotate relative to each other, so that the extractant and the wastewater are fully contacted and mixed.

4. A magnetic suspension centrifugal extractor according to claim 3, characterized in that: A plurality of groups of the first connecting rods (131) and the second connecting rods (133) are evenly arranged along the circumferential direction of the first stirring shaft (11) and the second stirring shaft (12), respectively.

5. The magnetic suspension centrifugal extractor according to claim 2, characterized in that: The stirring and scraping components (21) are symmetrically arranged on both sides of the second stirring shaft (12).

6. The magnetic suspension centrifugal extractor according to claim 1, characterized in that: One side of the stirring scraper (215) is in contact with the inner wall of the extractor body (100).

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