Microreactor device for preparing liquid isopropyl xanthate

Abstract

The invention relates to the technical field of medicament synthesis, and particularly discloses a microreactor device for preparing liquid isopropyl xanthate, the microreactor device comprises a workbench, the top of the workbench is fixedly connected with a mixing tank through a support, and the two sides and one end of the mixing tank are communicated with feeding pipes; the end, away from the mixing tank, of the feeding pipe communicates with a discharging port of a metering pump, the bottom of the metering pump is fixedly connected with the top of the workbench, the inner wall of the mixing tank is rotationally connected with a mixing device, and the part, located below the mixing tank, of the top of the workbench is fixedly connected with a first motor. According to the microreactor device for preparing the liquid isopropyl xanthate, the mixing device is arranged, so that the mixing efficiency of isopropanol, carbon disulfide and liquid caustic soda before reaction can be improved, and the dosing mechanism is arranged, so that the mixing efficiency of isopropanol, carbon disulfide and liquid caustic soda before reaction can be improved. Therefore, the reaction efficiency of the mixed solution of isopropanol, carbon disulfide and caustic soda liquid during reaction can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of medicament synthesis, in particular to a micro-reactor device for preparing liquid isopropyl xanthate. BACKGROUND

[0002] Isopropyl xanthate, as an important sulfide ore flotation collector, occupies a core position in the beneficiation process of non-ferrous metals such as copper, lead and zinc. The dithiocarbonate group contained in the molecular structure of isopropyl xanthate can form a stable chelate with metal ions on the surface of sulfide ore, significantly improve the floatability of the mineral, and thus improve the beneficiation efficiency and concentrate grade. Compared with the solid dosage form, the liquid isopropyl xanthate has the advantages of fast dissolution speed, good dispersion uniformity, easy precise control of dosage, etc. It is more suitable for modern continuous beneficiation production line. In recent years, the market demand has been growing. The classic preparation process of liquid isopropyl xanthate uses isopropyl alcohol, sodium hydroxide and carbon disulfide as raw materials to generate through nucleophilic addition reaction.

[0003] Chinese patent CN108745224B discloses a segmented micro-reactor device which can realize the effect of impurity filtration, but cannot realize the effect of uniform mixing of raw materials. The reaction rate of the prior art is low, which greatly affects the efficiency of medicament preparation. Moreover, the water content in the medicament cannot be effectively controlled, which makes it difficult to guarantee the purity and quality. SUMMARY

[0004] To solve the above technical problems, the present application is realized by the following technical scheme: a kind of microreactor device for preparing liquid isopropyl xanthate, including workbench, the top of the workbench is fixedly connected with mixing tank by support, the two sides and one end of the mixing tank are communicated with feed pipe, the discharge port of metering pump is communicated with the end of feed pipe away from the mixing tank, the bottom of metering pump is fixedly connected with the top of workbench, the inner wall of mixing tank is rotatably connected with mixing device, the part of the top of workbench below mixing tank is fixedly connected with first motor, the driving shaft of first motor penetrates the bottom of mixing tank and is fixedly connected with mixing device, the feed port of first electromagnetic valve is communicated with the end of mixing tank away from feed tank, the discharge port of first electromagnetic valve is communicated with first connecting pipe, the inner wall of first connecting pipe is fixedly connected with spiral disturbance vane, the end of first connecting pipe away from first electromagnetic valve is communicated with reaction tank, the bottom of reaction tank is fixedly connected with workbench by support, the top of reaction tank penetrates and is rotatably connected with dosing mechanism, the part of reaction tank above dosing mechanism both sides is sleeved and fixedly connected with constant-temperature jacket, the feed port of second electromagnetic valve is communicated with the side of reaction tank away from first connecting pipe, the discharge port of second electromagnetic valve is communicated with second connecting pipe, the water inlet of water pump is communicated with the end of second connecting pipe away from second electromagnetic valve, the water outlet of water pump is communicated with water removal mechanism, the third connecting pipe is communicated with the side of water removal mechanism away from water pump, the end of third connecting pipe away from water removal mechanism is communicated with packaging tank, and the packaging tank is fixedly connected on the top of workbench.

[0005] Preferably, the feed pipe includes a pipe body, the inner wall of the pipe body is fixedly connected with a filter plate, the side of the filter plate is uniformly provided with filter holes, the side of the filter plate penetrates and is rotatably connected with a rotating shaft, the rotating shaft is sleeved and fixedly connected with an arc-shaped stirring vane, the part of the bottom of the feed pipe on one side of the filter plate is communicated with a impurity removal pipe, the impurity removal pipe penetrates and is fixedly connected with a third electromagnetic valve, one end of the pipe body is communicated with the discharge port of the metering pump, and the end of the pipe body away from the metering pump is communicated with the side of the mixing tank.Iso-propanol aqueous solution, carbon disulfide and liquid alkali are pumped into the mixing tank through the feed pipe by metering pump according to the proportion of 1:1.1:1.0, when the raw material flows through the filter plate, the filter holes intercept impurity particles, the arc-shaped stirring vane rotates around the rotating shaft driven by the flowing raw material, and the impurities attached to the surface of the filter plate are scraped off to prevent the filter holes from being blocked, when the impurities accumulate to a certain amount, the third electromagnetic valve is started to open the impurity removal pipe to remove the intercepted impurities.

[0006] Preferably, the mixing device comprises a rotating ring, the rotating ring is uniformly fixedly connected with first connecting rods on the side, one end of the first connecting rod away from the rotating ring is fixedly connected with a first arc-shaped stirring rod, one end of the first arc-shaped stirring rod away from the first connecting rod is fixedly connected with a second connecting rod, the first arc-shaped stirring rod is provided with multiple groups and is uniformly distributed on the second connecting rod, one end of the second connecting rod away from the first arc-shaped stirring rod is uniformly fixedly connected with a second arc-shaped stirring rod, the second arc-shaped stirring rod is provided with multiple groups and is uniformly distributed on the second connecting rod, the part of the rotating ring on the side of the first connecting rod is uniformly fixedly connected with a scraper, one side of the rotating ring away from the first connecting rod is fixedly connected with a driven gear ring, the side of the driven gear ring is engaged with a driving bevel gear, the top of the driving bevel gear is fixedly connected with a first rotating rod, the top of the first rotating rod is fixedly connected with a stirring plate, the side of the stirring plate is uniformly provided with through holes, the top of the stirring plate is fixedly connected with a second rotating rod, the side of the rotating ring is rotationally connected with the inner wall of the mixing tank, the top of the second rotating rod penetrates through the mixing tank and is rotationally connected with the mixing tank, the bottom of the driving bevel gear is fixedly connected with the driving shaft of the first motor, after the raw materials enter the mixing tank, the first motor is started to drive the driving bevel gear to rotate, the driving bevel gear is engaged with the driven gear ring to drive the rotating ring to rotate, the first and second connecting rods drive the first and second arc-shaped stirring rods to rotate in the opposite direction, three kinds of raw materials are rolled into the middle for mixing, the rotating ring synchronously drives the scraper to rotate to scrape off the raw materials attached to the inner wall of the mixing tank, at the same time, the driving bevel gear drives the first rotating rod and the stirring plate to rotate, the through holes on the stirring plate further disperse and stir the raw materials to form a multi-level mixing structure.

[0007] Preferably, the dosing mechanism comprises a rotating pipe, the side of the rotating pipe is uniformly communicated with arc-shaped stirring pipes, the side of the arc-shaped stirring pipe is uniformly provided with dosing holes, the output end of the belt transmission mechanism is sleeved and fixedly connected on the rotating pipe, the input end of the belt transmission mechanism is fixedly connected with the driving shaft of the second motor, the top of the rotating pipe is sleeved and threadedly connected with a dosing cover, the rotating pipe penetrates through the top of the reaction tank and is rotationally connected with the reaction tank, the second motor is fixedly connected on the top of the reaction tank, the mixed raw materials enter the reaction tank through the first connecting pipe, after the dosing cover is screwed, the phase transfer catalyst is added into the rotating pipe, then the dosing cover is screwed, the second motor is started, the rotating pipe and the arc-shaped stirring pipe are rotated through the belt transmission mechanism, when the arc-shaped stirring pipe rotates, the dosing holes uniformly sprinkle the phase transfer catalyst in the pipe into the reaction tank, at the same time, the arc-shaped stirring pipe rotates closely to the inner wall of the reaction tank to stir the raw materials, so that the catalyst and the raw materials are fully integrated.

[0008] Preferably, the water removal mechanism comprises a water removal tank, one side of the water removal tank is communicated with a fourth connecting pipe, the inner wall of the water removal tank is fixedly connected with a reverse osmosis membrane through a support, the feed inlet of the reverse osmosis membrane is communicated with the fourth connecting pipe, the water outlet end of the reverse osmosis membrane is communicated with a water outlet pipe, the water outlet pipe penetrates through the water removal tank and is fixedly connected with a recovered water tank, the bottom of the water removal tank is fixedly connected to the top of the workbench through a support, the recovered water tank is fixedly connected to the top of the workbench, and the end of the fourth connecting pipe away from the water removal tank is communicated with the water outlet of the water pump.

[0009] The present application provides a kind of microreactor device for preparing liquid isopropyl xanthate. 1. The microreactor device for preparing liquid isopropyl xanthate, before the precise proportion of isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali are fed, the filter plate purifies the raw materials in advance through dense filter holes, which can efficiently intercept impurity particles, avoid impurities entering the subsequent reaction system, cause local reaction uneven, product purity decline problem, lay the foundation for high-quality products, the arc-shaped stirring blade rotates automatically under the scouring of raw materials, and the impurities adhering to the surface of the filter plate are scraped off in real time, solving the problem of easy blockage of traditional filter device and the need for frequent manual cleaning, ensuring the stability of raw material feeding rate and avoiding imbalance caused by blockage, when the impurities accumulate to the preset amount, the third electromagnetic valve is automatically opened to remove impurities, without manual intervention, reducing the cost of manual maintenance, and improving the mixing and reaction efficiency.

[0010] 2. The microreactor device for preparing liquid isopropyl xanthate, the combination of two groups of reverse arc-shaped stirring rods, scrapers and stirring plates driven by the first motor, a multi-layer stirring system is constructed, the first and second arc-shaped stirring rods rotate in reverse arc-shaped tracks, forming a central inductive stirring effect, which gathers and violently collides the three raw materials from the tank wall to the center, improving the raw material contact area and the mixing uniformity, uneven mixing can lead to incomplete local reaction, efficient mixing can improve the subsequent reaction conversion rate, the scraper rotates synchronously with the rotating ring, which can scrape off the raw materials adhering to the tank wall in real time, reducing the waste of chemical raw materials, and the through holes on the stirring plate shear the raw materials when rotating, breaking the raw material agglomerates, further improving the mixing fineness and improving the subsequent reaction efficiency.

[0011] 3. The microreactor device for preparing liquid isopropyl xanthate, the arc-shaped stirring tube is rotated by the second motor driven rotating tube, the catalyst is uniformly sprayed into the reaction tank through the dosing hole along the stirring track, avoiding the problem of local high concentration caused by traditional manual feeding, which leads to side reactions, and low catalyst efficiency, improving the reaction rate, the arc-shaped stirring tube is close to the inner wall of the reaction tank and the four corners, avoiding uneven mixing in the dead angle of the tank wall, ensuring that the catalyst is evenly distributed in the tank, and the catalyst can be added through the dosing cover when the catalyst is insufficient, improving the preparation efficiency of liquid isopropyl xanthate.

[0012] 4. The micro-reactor device for preparing liquid isopropyl xanthate, the water pump transports the liquid which has completed the reaction in the reaction tank to the fourth connecting pipe through the second connecting pipe, then transports from the fourth connecting pipe to the reverse osmosis membrane inside the water removing tank, the reverse osmosis membrane has selective permeability, water molecules can permeate the reverse osmosis membrane, after the liquid isopropyl xanthate enters, in the flowing process, water molecules permeate the water outlet end of the reverse osmosis membrane and flow to the water outlet pipe, then flow from the water outlet pipe into the recovered water tank for recovery, and the liquid isopropyl xanthate is intercepted in the water removing tank and flows into the packaging tank through the third connecting pipe for subsequent packaging operation, so that water in the liquid can be effectively removed, the purity of the liquid isopropyl xanthate is improved, and the product quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The micro-reactor device for preparing liquid isopropyl xanthate according to the present application is shown in the structural schematic diagram. Figure 2 The connecting structure of the mixing tank according to the present application is shown in the schematic diagram. Figure 3 The internal structure of the mixing tank according to the present application is shown in the schematic diagram. Figure 4 The internal structure of the first connecting pipe according to the present application is shown in the schematic diagram. Figure 5 The internal connecting structure of the feeding pipe according to the present application is shown in the schematic diagram. Figure 6 The structure of the mixing device according to the present application is shown in the schematic diagram. Figure 7 The connecting structure of the medicine adding mechanism according to the present application is shown in the schematic diagram. Figure 8 The structure of the medicine adding mechanism according to the present application is shown in the schematic diagram. Figure 9 The structure of the water removing mechanism according to the present application is shown in the schematic diagram.

[0014] In the figure: 1, workbench; 2, mixing tank; 3, feed pipe; 4, metering pump; 5, mixing device; 6, first motor; 7, first electromagnetic valve; 8, first connecting pipe; 9, reaction tank; 10, dosing mechanism; 11, constant temperature jacket; 12, second electromagnetic valve; 13, second connecting pipe; 14, water removal mechanism; 15, third connecting pipe; 16, packaging tank; 17, helical disturbance vane; 18, water pump; 31, pipe body; 32, filter hole; 33, rotating shaft; 34, arc-shaped stirring vane; 35, impurity discharge pipe; 36, third electromagnetic valve; 37, filter plate; 51, rotating ring; 52, first connecting rod; 53, first arc-shaped stirring rod; 54, second connecting rod; 55, second arc-shaped stirring rod; 56, driven gear ring; 57, driving bevel gear; 58, first rotating rod; 59, stirring plate; 510, through hole; 511, second rotating rod; 512, scraper; 101, rotating pipe; 102, arc-shaped stirring pipe; 103, dosing hole; 104, belt transmission mechanism; 105, second motor; 106, dosing cover; 141, water removal tank; 142, fourth connecting pipe; 143, reverse osmosis membrane; 144, water outlet pipe; 145, recycled water tank. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0016] The first embodiment, please refer to Figures 1-5The application provides a technical scheme, solves the problem that impurities have adverse effects on subsequent reactions, and relates to a micro-reactor device for preparing liquid isopropyl xanthate, which comprises a workbench 1, a mixing tank 2 fixedly connected to the top of the workbench 1 through a support, feed pipes 3 communicated with both sides and one end of the mixing tank 2, a discharge opening of a metering pump 4 communicated with one end of the feed pipes 3 away from the mixing tank 2, the metering pump 4 fixedly connected to the top of the workbench 1, a mixing device 5 rotatably connected to the inner wall of the mixing tank 2, a first motor 6 fixedly connected to the part of the top of the workbench 1 below the mixing tank 2, a driving shaft of the first motor 6 penetrating through the bottom of the mixing tank 2 and fixedly connected to the mixing device 5, a feed opening of a first electromagnetic valve 7 communicated with one end of the mixing tank 2 away from the feed pipes 3, a first connecting pipe 8 communicated with the discharge opening of the first electromagnetic valve 7, helical disturbance leaves 17 fixedly connected to the inner wall of the first connecting pipe 8, a reaction tank 9 communicated with one end of the first connecting pipe 8 away from the first electromagnetic valve 7, the reaction tank 9 fixedly connected to the workbench 1 through a support at the bottom, a dosing mechanism 10 penetrating through and rotatably connected to the top of the reaction tank 9, constant-temperature jackets 11 fixedly connected to the parts of the reaction tank 9 above and below the dosing mechanism 10, a feed opening of a second electromagnetic valve 12 communicated with one side of the reaction tank 9 away from the first connecting pipe 8, a second connecting pipe 13 communicated with the discharge opening of the second electromagnetic valve 12, a feed water inlet of a water pump 18 communicated with one end of the second connecting pipe 13 away from the second electromagnetic valve 12, a water removal mechanism 14 communicated with one side of the water pump 18 away from the water pump 18, a third connecting pipe 15 communicated with one end of the third connecting pipe 15 away from the water removal mechanism 14, a packaging tank 16 fixedly connected to the top of the workbench 1, the feed pipes 3 comprising pipe bodies 31, filter plates 37 fixedly connected to the inner walls of the pipe bodies 31, filter holes 32 uniformly formed in the sides of the filter plates 37, rotating shafts 33 penetrating through and rotatably connected to the sides of the filter plates 37, arc-shaped stirring leaves 34 sleeved and fixedly connected to the rotating shafts 33, impurity removal pipes 35 communicated with the parts of the feed pipes 3 below and on one side of the filter plates 37, third electromagnetic valves 36 penetrating through and fixedly connected to the impurity removal pipes 35, one end of the pipe bodies 31 communicated with the discharge opening of the metering pump 4, and the other end of the pipe bodies 31 communicated with the side of the mixing tank 2.

[0017] In use, the isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali are pumped into the mixing tank 2 through the metering pump 4 in a proportion of 1:1.1:1.0, and the pre-treatment operation is performed at the feed pipe 3. When the raw material passes through the filter plate 37, the filter holes 32 on the filter plate 37 filter the raw material and the impurity particles possibly contained in the isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali, and the filtered isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali pass through the filter holes 32 into the mixing tank 2 for mixing operation, while the filtered impurity particles are intercepted on the side of the filter plate 37 at the impurity discharge pipe 35. When the impurities accumulate to a certain amount, the third electromagnetic valve 36 is started to open the impurity discharge pipe 35, and the impurities are discharged through the impurity discharge pipe 35, realizing the effect of automatic impurity discharge. Since the impurity particles may adhere to the filter plate 37, the raw material flowing through the filter plate 37 drives the arc-shaped stirring rod 34 to rotate on the rotating shaft 33, thereby scraping off the impurity particles on the filter plate 37, preventing the impurity particles from blocking the filter holes 32, ensuring the filtering effect of the filter plate 37 and the smooth passing of the raw material, and improving the filtering effect of the pre-treatment.

[0018] The second embodiment, please refer to Figures 1-6 On the basis of the first embodiment, the present application provides a technical solution, which solves the problem of poor mixing effect of raw materials: the mixing device 5 comprises a rotating ring 51, the side of the rotating ring 51 is uniformly connected with a first connecting rod 52, one end of the first connecting rod 52 away from the rotating ring 51 is fixedly connected with a first arc-shaped stirring rod 53, one end of the first arc-shaped stirring rod 53 away from the first connecting rod 52 is fixedly connected with a second connecting rod 54, the first arc-shaped stirring rod 53 is provided with multiple groups and is uniformly distributed on the second connecting rod 54, one end of the second connecting rod 54 away from the first arc-shaped stirring rod 53 is uniformly fixedly connected with a second arc-shaped stirring rod 55, the second arc-shaped stirring rod 55 is provided with multiple groups and is uniformly distributed on the second connecting rod 54, the part of the side of the rotating ring 51 on the side of the first connecting rod 52 is uniformly fixedly connected with a scraper 512, one side of the rotating ring 51 away from the first connecting rod 52 is fixedly connected with a driven gear ring 56, the side of the driven gear ring 56 is engaged with a driving bevel gear 57, the top of the driving bevel gear 57 is fixedly connected with a first rotating rod 58, the top of the first rotating rod 58 is fixedly connected with a stirring plate 59, the side of the stirring plate 59 is uniformly provided with through holes 510, the top of the stirring plate 59 is fixedly connected with a second rotating rod 511, the side of the rotating ring 51 is rotatably connected with the inner wall of the mixing tank 2, the top of the second rotating rod 511 penetrates through the mixing tank 2 and is rotatably connected with the mixing tank 2, and the bottom of the driving bevel gear 57 is fixedly connected with the driving shaft of the first motor 6.

[0019] When the isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali enter the mixing tank 2 in proportion, the first motor 6 is started, the driving shaft of the first motor 6 rotates to drive the driving bevel gear 57 to rotate, the driving bevel gear 57 rotates to drive the driven gear ring 56 to rotate, the driven gear ring 56 rotates to drive the rotating ring 51 to rotate, the rotating ring 51 rotates to drive the first connecting rod 52 to rotate, the first connecting rod 52 rotates to drive the first arc-shaped stirring rod 53 to rotate, the first arc-shaped stirring rod 53 rotates to drive the second connecting rod 54 to rotate, the second connecting rod 54 rotates to drive the second arc-shaped stirring rod 55 to rotate, and the reverse arc-shaped structures of the first arc-shaped stirring rod 53 and the second arc-shaped stirring rod 55 oppositely stir the isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali in the mixing tank 2, so that the three raw materials are mixed and stirred in the middle of the first arc-shaped stirring rod 53 and the second arc-shaped stirring rod 55, the three raw materials are more fully contacted and mixed in the mixing tank 2, the mixing effect is improved, at the same time, the rotation of the rotating ring 51 also drives the scraper 512 to rotate, the scraper 512 scrapes the inner wall of the mixing tank 2 to prevent the raw materials from adhering to the inner wall of the mixing tank 2 to cause waste and uneven mixing, in addition, the rotation of the driving bevel gear 57 also drives the first rotating rod 58 to rotate, the first rotating rod 58 rotates to drive the stirring plate 59 to rotate, the through hole 510 on the stirring plate 59 further stirs and scatters the raw materials during the rotation process, so that the mixing is more uniform, and through the multi-level stirring structure, the mixing effect of the isopropyl alcohol aqueous solution, carbon disulfide and liquid alkali is greatly improved, and a good foundation is provided for the subsequent reaction.

[0020] The third embodiment, please refer to Figures 1-8 On the basis of the second embodiment, the application provides a technical solution to solve the problem of poor reaction rate: the dosing mechanism 10 comprises a rotating pipe 101, arc-shaped stirring pipes 102 uniformly communicated on the side surface of the rotating pipe 101, dosing holes 103 uniformly arranged on the side surface of the arc-shaped stirring pipes 102, an output end of a belt drive mechanism 104 sleeved and fixedly connected on the rotating pipe 101, an input end of the belt drive mechanism 104 fixedly connected with the driving shaft of a second motor 105, a dosing cover 106 threadedly connected on the top of the rotating pipe 101, the rotating pipe 101 penetrating through the top of the reaction tank 9 and rotationally connected with the reaction tank 9, and the second motor 105 fixedly connected on the top of the reaction tank 9.

[0021] When the raw materials in the mixing tank 2 enter the reaction tank 9 through the first connecting pipe 8, in order to improve the reaction rate, a phase transfer catalyst is added to the reaction tank 9, the charging cover 106 is unscrewed, the phase transfer catalyst is added to the rotating pipe 101, then the charging cover 106 is screwed, and then the second motor 105 is started, the driving shaft of the second motor 105 rotates to drive the input end of the belt transmission mechanism 104 to rotate, the input end of the belt transmission mechanism 104 rotates to drive the output end to rotate, the output end rotates to drive the rotating pipe 101 to rotate, the rotating pipe 101 rotates to drive the arc-shaped stirring pipe 102 to rotate, and in the rotating process, the arc-shaped stirring pipe 102 is uniformly scattered into the reaction tank 9 through the charging holes 103 on the side of the rotating pipe 101, and the rotation of the arc-shaped stirring pipe 102 can also stir the raw materials in the reaction tank 9, so that the phase transfer catalyst and the raw materials are fully mixed, the reaction rate is improved, the arc-shaped stirring pipe 102 on the outside is closely attached to the reaction tank 9, the local four-corner mixing unevenness is avoided, the phase transfer catalyst can be quickly and uniformly dispersed in the raw materials, and the preparation efficiency of the liquid isopropyl xanthate is improved.

[0022] In the fourth embodiment, please refer to Figures 1-9 On the basis of the third embodiment, the application provides a technical solution, which solves the problem that water contained in the medicament affects the purity of the medicament: the water removal mechanism 14 comprises a water removal tank 141, a fourth connecting pipe 142 is communicated with one side of the water removal tank 141, a reverse osmosis membrane 143 is fixedly connected to the inner wall of the water removal tank 141 through a support, the feed inlet of the reverse osmosis membrane 143 is communicated with the fourth connecting pipe 142, a water outlet pipe 144 is communicated with the water outlet end of the reverse osmosis membrane 143, the water outlet pipe 144 penetrates through the water removal tank 141 and is fixedly connected with a water recovery tank 145, the bottom of the water removal tank 141 is fixedly connected to the top of the workbench 1 through a support, the water recovery tank 145 is fixedly connected to the top of the workbench 1, the end of the fourth connecting pipe 142 away from the water removal tank 141 is communicated with the water outlet of the water pump 18, and one side of the water removal tank 141 is communicated with the third connecting pipe 15.

[0023] In use, the water pump 18 is started, the water pump 18 transports the liquid that has completed the reaction in the reaction tank 9 into the fourth connecting pipe 142 through the second connecting pipe 13, and then into the reverse osmosis membrane 143 in the water removal tank 141, the reverse osmosis membrane 143 has selective permeability, water molecules can permeate through the reverse osmosis membrane 143, and in the flowing process, the water molecules flow to the water outlet pipe 144 through the water outlet end of the reverse osmosis membrane 143, and then flow into the water recovery tank 145 from the water outlet pipe 144 for recovery, while the liquid isopropyl xanthate is intercepted in the water removal tank 141 and flows into the packaging tank 16 through the third connecting pipe 15 for subsequent packaging operation, so that the water in the liquid can be effectively removed, the purity of the liquid isopropyl xanthate is improved, and the product quality is ensured.

[0024] Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, if not specifically described and limited.

Claims

1. A microreactor device for preparing liquid isopropyl xanthate, characterized in that: The system includes a workbench (1), a mixing tank (2) fixedly connected to the top of the workbench (1) via a bracket, a feed pipe (3) connected to both sides and one end of the mixing tank (2), a feed pipe (3) connected to the outlet of a metering pump (4) at the end of the feed pipe (3) away from the mixing tank (2), the bottom of the metering pump (4) fixedly connected to the top of the workbench (1), a mixing device (5) rotatably connected to the inner wall of the mixing tank (2), a first motor (6) fixedly connected to the part of the top of the workbench (1) below the mixing tank (2), the drive shaft of the first motor (6) passing through the bottom of the mixing tank (2) and fixedly connected to the mixing device (5), a feed port of a first solenoid valve (7) connected to the end of the mixing tank (2) away from the feed pipe (3), a first connecting pipe (8) connected to the outlet of the first solenoid valve (7), a spiral turbulence vane (17) fixedly connected to the inner wall of the first connecting pipe (8), and a connection to the end of the first connecting pipe (8) away from the first solenoid valve (7). A reaction vessel (9) is provided. The bottom of the reaction vessel (9) is fixedly connected to the workbench (1) via a bracket. A dosing mechanism (10) is rotatably connected through the top of the reaction vessel (9). A constant temperature jacket (11) is fitted and fixedly connected to both sides of the dosing mechanism (10) on the reaction vessel (9). The side of the reaction vessel (9) away from the first connecting pipe (8) is connected to the inlet of the second solenoid valve (12). The outlet of the second solenoid valve (12) is connected to the second connecting pipe (13). The end of the second connecting pipe (13) away from the second solenoid valve (12) is connected to the inlet of the water pump (18). The outlet of the water pump (18) is connected to the dewatering mechanism (14). The side of the dewatering mechanism (14) away from the water pump (18) is connected to the third connecting pipe (15). The end of the third connecting pipe (15) away from the dewatering mechanism (14) is connected to the packaging tank (16). The packaging tank (16) is fixedly connected to the top of the workbench (1).

2. The microreactor device for preparing liquid isopropyl xanthate according to claim 1, characterized in that: The feed pipe (3) includes a pipe body (31), a filter plate (37) is fixedly connected to the inner wall of the pipe body (31), filter holes (32) are evenly opened on the side of the filter plate (37), a rotating shaft (33) is rotatably connected through the side of the filter plate (37), an arc-shaped stirring blade (34) is sleeved and fixedly connected on the rotating shaft (33), and a discharge pipe (35) is connected to the bottom of the feed pipe (3) on one side of the filter plate (37), and a third solenoid valve (36) is rotatably connected through the discharge pipe (35).

3. The microreactor device for preparing liquid isopropyl xanthate according to claim 2, characterized in that: One end of the pipe (31) is connected to the outlet of the metering pump (4), and the other end of the pipe (31) away from the metering pump (4) is connected to the side of the mixing tank (2).

4. The microreactor device for preparing liquid isopropyl xanthate according to claim 1, characterized in that: The mixing device (5) includes a rotating ring (51), on which first connecting rods (52) are uniformly fixedly connected. A first arc-shaped stirring rod (53) is fixedly connected to the end of the first connecting rod (52) away from the rotating ring (51). A second connecting rod (54) is fixedly connected to the end of the first arc-shaped stirring rod (53) away from the first connecting rod (52). Multiple sets of the first arc-shaped stirring rods (53) are provided and evenly distributed on the second connecting rods (54). A second arc-shaped stirring rod (55) is uniformly fixedly connected to the end of the second connecting rod (54) away from the first arc-shaped stirring rod (53). Multiple sets of the second arc-shaped stirring rods (55) are provided. The components are evenly distributed on the second connecting rod (54). The part of the rotating ring (51) located on the side of the first connecting rod (52) is evenly fixedly connected with scrapers (512). The side of the rotating ring (51) away from the first connecting rod (52) is fixedly connected with a driven gear ring (56). The side of the driven gear ring (56) is meshed with a driving bevel gear (57). The top of the driving bevel gear (57) is fixedly connected with a first rotating rod (58). The top of the first rotating rod (58) is fixedly connected with a stirring plate (59). The side of the stirring plate (59) is evenly provided with through holes (510). The top of the stirring plate (59) is fixedly connected with a second rotating rod (511).

5. The microreactor device for preparing liquid isopropyl xanthate according to claim 4, characterized in that: The side of the rotating ring (51) is rotatably connected to the inner wall of the mixing tank (2), the top of the second rotating rod (511) passes through the mixing tank (2) and is rotatably connected to the mixing tank (2), and the bottom of the active bevel gear (57) is fixedly connected to the drive shaft of the first motor (6).

6. The microreactor device for preparing liquid isopropyl xanthate according to claim 1, characterized in that: The dosing mechanism (10) includes a rotating tube (101), with an arc-shaped stirring tube (102) evenly connected to the side of the rotating tube (101). Dosing holes (103) are evenly opened on the side of the arc-shaped stirring tube (102). The output end of a belt drive mechanism (104) is sleeved and fixedly connected to the rotating tube (101). The input end of the belt drive mechanism (104) is fixedly connected to the drive shaft of a second motor (105). A dosing cap (106) is sleeved and threadedly connected to the top of the rotating tube (101).

7. The microreactor device for preparing liquid isopropyl xanthate according to claim 6, characterized in that: The rotating tube (101) passes through the top of the reaction vessel (9) and is rotatably connected to the reaction vessel (9), and the second motor (105) is fixedly connected to the top of the reaction vessel (9).

8. The microreactor device for preparing liquid isopropyl xanthate according to claim 1, characterized in that: The water removal mechanism (14) includes a water removal tank (141), a fourth connecting pipe (142) connected to one side of the water removal tank (141), a reverse osmosis membrane (143) fixedly connected to the inner wall of the water removal tank (141) by a bracket, the feed port of the reverse osmosis membrane (143) connected to the fourth connecting pipe (142), the water outlet end of the reverse osmosis membrane (143) connected to a water outlet pipe (144), the water outlet pipe (144) passing through the water removal tank (141) and fixedly connected to a recovery water tank (145).

9. The microreactor device for preparing liquid isopropyl xanthate according to claim 8, characterized in that: The bottom of the water removal tank (141) is fixedly connected to the top of the workbench (1) by a bracket, the water recovery tank (145) is fixedly connected to the top of the workbench (1), the end of the fourth connecting pipe (142) away from the water removal tank (141) is connected to the outlet of the water pump (18), and one side of the water removal tank (141) is connected to the third connecting pipe (15).

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