CN115259999B - High-efficiency separation process and equipment for water-containing isopropanol - Google Patents
High-efficiency separation process and equipment for water-containing isopropanol Download PDFInfo
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- CN115259999B CN115259999B CN202210875363.4A CN202210875363A CN115259999B CN 115259999 B CN115259999 B CN 115259999B CN 202210875363 A CN202210875363 A CN 202210875363A CN 115259999 B CN115259999 B CN 115259999B
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/36—Azeotropic distillation
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
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- C07—ORGANIC CHEMISTRY
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- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/86—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
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- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/94—Use of additives, e.g. for stabilisation
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- C—CHEMISTRY; METALLURGY
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- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/02—Monohydroxylic acyclic alcohols
- C07C31/10—Monohydroxylic acyclic alcohols containing three carbon atoms
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Abstract
The application discloses high-efficient separation process and equipment of aqueous isopropanol belongs to aqueous isopropanol separation technical field, includes the following step: adding aqueous isopropanol to a separation tank; adding sodium hydroxide in proper proportion and fully stirring; standing the mixed solution to enable the mixed solution to be layered; taking the supernatant, and rectifying to obtain the high-purity isopropanol. In the process of extracting the hydrous isopropanol, the hydrous isopropanol with higher purity can be obtained by firstly adding sodium hydroxide and standing for layering, and then the high-purity isopropanol can be obtained by rectification, so that the production cost of production and extraction equipment is reduced.
Description
Technical Field
The application relates to the technical field of separation of hydrous isopropanol, in particular to a process and equipment for efficiently separating hydrous isopropanol.
Background
Isopropanol is an important chemical product and raw material, and is widely applied to the aspects of pharmacy, cosmetics, plastics, spices, coatings and the like.
At present, the effective separation and purification technology for the hydrous isopropanol in China mainly comprises an azeotropic distillation method, an extractive distillation method, a membrane separation method, an adsorption separation method and the like, wherein the high-purity isopropanol is difficult to purify only by the azeotropic distillation method and the extractive distillation method, and in the process of purifying the hydrous isopropanol by the membrane separation method, although the purification effect is obvious, the manufacturing difficulty of separation equipment is high, the manufacturing tightness and precision requirements of the equipment are high, wherein the raw material amount of the hydrous isopropanol of individual enterprises is small, and the investment capital and the manufacturing equipment capital have unequal relation.
Disclosure of Invention
In order to reduce the investment cost for purifying the water-containing isopropanol, the application provides a high-efficiency separation process and equipment for the water-containing isopropanol.
The efficient separation process and equipment for the water-containing isopropanol adopt the following technical scheme:
an efficient separation process and equipment for water-containing isopropanol comprise the following steps:
adding aqueous isopropanol to a separation tank;
adding sodium hydroxide in proper proportion and fully stirring;
standing the mixed solution to enable the mixed solution to be layered;
taking the supernatant, and rectifying to obtain the high-purity isopropanol.
By adopting the technical scheme, in the process of extracting the hydrous isopropanol, the hydrous isopropanol with higher purity can be obtained by firstly adding sodium hydroxide and standing for layering, and then the high-purity isopropanol can be obtained by rectification, so that the production cost of production and extraction equipment is reduced.
Preferably, the device comprises a separation tank body, a supernatant storage tank and a lower supernatant storage tank, wherein the separation tank body is communicated with a liquid inlet pipe, a first liquid outlet pipe and a second liquid outlet pipe;
the first liquid outlet pipe is used for extracting supernatant in the separation tank body, and the second liquid outlet pipe is used for extracting supernatant in the separation tank body; first valve is installed to first drain pipe, install the second valve on the second drain pipe.
Through adopting above-mentioned technical scheme, at the in-process of purification aqueous isopropanol, the supernatant in the knockout drum body passes through first drain pipe and gets into supernatant storage jar, and the lower supernatant in the knockout drum body passes through the second drain pipe and gets into in the supernatant storage jar, utilizes first valve and second valve so that control switching on and shutting off of first drain pipe and second drain pipe simultaneously.
Preferably, the separation tank further comprises a residual liquid storage tank, the separation tank body is also communicated with a liquid discharge pipe, the end part of the liquid inlet pipe is provided with a first three-way valve, and the liquid discharge pipe is provided with a second three-way valve; a raw material pipe and a circulating pipe are also arranged on the first three-way valve, and both the raw material pipe and the circulating pipe can be communicated with the liquid inlet pipe through the first three-way valve; the second three-way valve is also provided with a sewage discharge pipe and a residual material recovery pipe; the sewage discharge pipe and the excess material recycling pipe can be communicated with the liquid discharge pipe through the second three-way valve;
the first liquid outlet pipe is communicated with the supernatant storage tank; the second drain pipe with lower clear liquid storage jar is linked together, clout recovery tube with the inlet of remaining liquid storage jar is linked together, the circulating pipe with the liquid outlet of remaining liquid storage jar is linked together.
By adopting the technical scheme, in the process of purifying the water-containing isopropanol, the liquid is positioned at the separation part of the supernatant and the subnatant after standing, and the separation may not be finished; after extracting appropriate amounts of supernatant and subnatant, the remaining liquid in the separator tank flows into the residual liquid storage tank by opening the second three-way valve; when the liquid stored in the residual liquid storage tank reaches the storage upper limit, the first three-way valve is opened, so that the liquid in the residual liquid storage tank flows into the separation tank body to be subjected to secondary separation treatment, the interference of the supernatant liquid in the purification process can be guaranteed, the residual liquid can be subjected to secondary separation treatment, and the waste of raw materials is reduced.
Preferably, the separation tank body is further provided with a controller, and the end part of the first liquid outlet pipe, which is located in the separation tank body, is provided with a first density sensor for detecting the density of the supernatant; a second density sensor is arranged at the end part of the second liquid outlet pipe in the separation tank body and used for detecting the density of the supernatant liquid;
two input ends of the controller are electrically connected with the first density sensor and the second density sensor in a one-to-one correspondence manner so as to receive a plurality of liquid density information collected by the first density sensor and the second density sensor; and a plurality of control ends of the controller are electrically connected with the first valve, the second valve, the first three-way valve and the second three-way valve in a one-to-one correspondence manner so as to respond to a plurality of liquid density information to control the opening and closing of the plurality of valves.
Through adopting above-mentioned technical scheme, utilize first density sensor and second density sensor, the liquid density of the first drain pipe of understanding and second drain pipe tip department that can be timely, further, the controller can be according to a plurality of liquid density information of first density sensor and second density sensor feedback, the opening and close of control first valve, second valve and second three-way valve to in drawing into the knockout drum body supernatant and lower supernatant.
Preferably, a stirring assembly is mounted on the separation tank body, and comprises a mounting disc, a rotating disc and a plurality of propeller blades, wherein the mounting disc is fixedly mounted in the separation tank body, and the rotating disc is rotatably mounted on the mounting disc; the plurality of propeller blades are fixedly connected to the rotating disc; and a driving assembly for driving the rotating disc to rotate is further arranged in the separating tank body.
Through adopting above-mentioned technical scheme, when the staff adds the sodium hydroxide to the knockout drum body, rotate through drive assembly drive rolling disc, the rolling disc rotates and drives a plurality of propeller blade and rotate to reach and be convenient for mix the stirring to the liquid in the knockout drum body.
Preferably, the driving assembly comprises a first internal gear, a first driving gear, a screw rod and a motor, the motor is fixedly mounted on the separation tank body, the screw rod is fixedly connected with an output shaft of the motor, the screw rod is rotatably connected with the side wall of the separation tank body, and the screw rod is in threaded connection with the mounting disc; a screw rod is fixedly connected in the separation tank body and is in sliding connection with the mounting disc; the first internal gear with rolling disc fixed connection, first drive gear rotate install in on the mounting disc, first internal gear with first drive gear meshes mutually.
Through adopting above-mentioned technical scheme, for the convenience of drive rolling disc rotates, through starting first motor for the output shaft of first motor drives the lead screw and rotates, and the lead screw rotates and drives first drive gear and rotate, and first drive gear rotates the first internal gear of drive and rotates, and first internal gear rotates and drives the rolling disc and rotate, thereby reaches the drive rolling disc pivoted purpose of being convenient for.
Preferably, a floating plate is further arranged in the separation tank body, a brush is fixedly connected to the outer peripheral surface of the floating plate, and the brush is in contact with the side wall of the separation tank body; the floating plate is provided with a fixing assembly for fixing the first liquid outlet pipe;
the screw rod is connected with a connecting disc in a sliding mode, the screw rod is in threaded connection with the connecting disc, the screw rod penetrates through the connecting disc, and the screw rod is connected with the connecting disc in a sliding mode; the connecting plate is provided with a connecting assembly for the floating plate, and the connecting plate is further provided with a rotating assembly for driving the floating plate to rotate.
By adopting the technical scheme, the level of the supernatant is gradually reduced in the process of gradually extracting the supernatant and the supernatant in the separation tank body; the horizontal plane of the supernatant is lowered to drive the floating plate to move, and the floating plate moves to drive the end part of the first liquid outlet pipe to move; when the floating plate is in contact with the mounting plate, the connecting plate is connected with the floating plate under the action of the connecting assembly, and then the floating plate is driven to rotate under the action of the rotating assembly to drive the floating plate to rotate so as to drive the hairbrush to rotate, so that the inner side wall of the separation tank body can be cleaned conveniently.
Preferably, the connecting assembly comprises a limiting block, a first spring and a pushing block, a sliding groove for the limiting block to slide is formed in the connecting disc, an annular limiting groove for the limiting block to be inserted is formed in the floating plate, and an inclined surface is arranged on the top side of the limiting block;
one end of the first spring is fixedly connected to the inner side wall of the sliding groove, the other end of the first spring is fixedly connected to the limiting block, the limiting block is provided with a through hole, the connecting disc is provided with a first through hole, and the first through hole is communicated with the through hole;
the screw rod is fixedly connected with a pushing disc, the pushing block is fixedly connected to the bottom side of the pushing disc, and the pushing block is arranged in the first through hole in a penetrating mode; the bottom side of the pushing block is provided with an inclined plane, the side wall of the through hole is provided with an inclined plane, and the inclined plane of the pushing block is matched with the inclined plane on the side wall of the through hole.
By adopting the technical scheme, in the process that the connecting disc is contacted with the pushing disc, the inclined surface of the pushing block can be contacted with the inclined surface on the side wall of the through hole and can move into the sliding groove by pushing the limiting block; when the floating plate moves to one side close to the mounting disc, the floating plate can be in contact with the inclined surface on the limiting block and can push the inclined surface on the limiting block to move into the sliding groove; when the sliding groove is aligned with the annular limiting groove, the limiting block is pushed to move under the action of the elastic force of the first spring, so that the limiting block is inserted into the annular limiting groove, and the floating plate is connected with the connecting disc.
Preferably, the fixed component comprises a sliding rod, a second spring and a clamping block, the floating plate is provided with a connecting groove, and the sliding rod is connected with the side wall of the connecting groove in a sliding manner; the sliding rod is provided with a connecting hole, and the first liquid outlet pipe is arranged in the connecting hole in a penetrating mode; the clamping block is fixedly connected to the side wall of the connecting hole, and the first liquid outlet pipe is provided with a clamping groove for the clamping block to be inserted and matched; one end of the second spring is fixedly connected to the side wall of the connecting hole, and the other end of the second spring is fixedly connected to the sliding rod.
By adopting the technical scheme, when the limiting block is inserted into the annular limiting groove, the limiting block can push the sliding rod to move, and the sliding rod moves to drive the clamping block to move, so that the clamping block is separated from the clamping groove, and the limiting effect of the clamping block on the first liquid outlet pipe is removed; when the stopper removed to the spout in, under the elastic force effect of second spring for the second spring promotes the slide bar and resets, thereby can make the joint piece remove to the joint inslot once more, thereby reach the purpose of being convenient for fixed first drain pipe.
Preferably, the rotating assembly comprises a second internal gear and a second driving gear, a yielding groove is formed in the bottom side of the connecting disc, and the second internal gear is matched with the yielding groove; the second driving gear is rotatably installed on the connecting disc and meshed with the second internal gear.
Through adopting above-mentioned technical scheme, when the connection pad drives the floating plate and keeps away from the one side removal of mounting disc mutually, the connection pad removes and drives second drive gear and rotate, and at this moment under the effect of screw rod for the screw rod can drive second drive gear and rotate, and second drive gear rotates drive second internal gear and rotates, and second internal gear rotates and drives the floating plate and rotate, thereby reaches the drive floating plate pivoted purpose of being convenient for.
In summary, the present application includes at least one of the following beneficial technical effects:
in the process of extracting the hydrous isopropanol, the hydrous isopropanol with higher purity can be obtained by firstly adding sodium hydroxide and standing for layering, and then the high-purity isopropanol can be obtained by rectification, so that the production cost of production and extraction equipment is reduced;
in the process of purifying the water-containing isopropanol, the supernatant in the separation tank body enters a supernatant storage tank through a first liquid outlet pipe, the supernatant in the separation tank body enters a lower supernatant storage tank through a second liquid outlet pipe, and meanwhile, the first valve and the second valve are utilized to control the connection and disconnection of the first liquid outlet pipe and the second liquid outlet pipe;
in the process of gradually extracting the supernatant and the supernatant in the separation tank body, the level of the supernatant is gradually reduced; the horizontal plane of the supernatant is lowered to drive the floating plate to move, and the floating plate moves to drive the end part of the first liquid outlet pipe to move; when the floating plate contacts with the mounting disc, the connecting disc is connected with the floating plate under the action of the connecting assembly, and then under the action of the rotating assembly, the floating plate is driven to rotate to drive the floating plate to rotate so as to drive the hairbrush to rotate, so that the inner side wall of the separation tank body can be conveniently cleaned.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a control block diagram of a controller in an embodiment of the present application.
FIG. 3 is a cross-sectional view of an embodiment of the separator tank of the present application.
FIG. 4 is a schematic view showing the structure of a stirring assembly in the embodiment of the present application.
FIG. 5 is a schematic view showing the connection between the connection plate and the floating plate according to the embodiment of the present application.
Fig. 6 is a schematic structural view highlighting the connecting assembly and the fixing assembly in an embodiment of the present application.
Fig. 7 is a schematic structural diagram of a fixing assembly in an embodiment of the present application.
Description of reference numerals: 1. separating the tank body; 11. a supernatant storage tank; 12. a lower clear liquid storage tank; 13. a residual liquid storage tank; 14. a liquid inlet pipe; 141. a first three-way valve; 142. a raw material pipe; 143. a circulation pipe; 15. a first liquid outlet pipe; 151. a first valve; 152. a first pipeline; 153. a second pipeline; 154. a clamping groove; 16. a second liquid outlet pipe; 161. a second valve; 17. a liquid discharge pipe; 171. a second three-way valve; 172. a blow-off pipe; 173. a residual material recovery pipe; 18. a guide strip; 2. a controller; 21. a first density sensor; 22. a second density sensor; 3. a stirring assembly; 31. mounting a disc; 311. an arc-shaped slot; 32. rotating the disc; 321. a connecting ring; 322. mounting blocks; 33. a propeller blade; 34. a pushing block; 4. a drive assembly; 41. a first internal gear; 42. a first drive gear; 43. a screw rod; 44. a motor; 45. a screw; 5. a floating plate; 51. an annular limiting groove; 52. connecting grooves; 53. a brush; 54. a connecting disc; 541. a chute; 542. a first through hole; 543. a second through hole; 544. a yielding groove; 6. a connecting assembly; 61. a limiting block; 611. a through hole; 62. a first spring; 63. a pushing block; 64. pushing the disc; 7. a fixing assembly; 71. a slide bar; 711. connecting holes; 72. a second spring; 73. a clamping block; 8. a rotating assembly; 81. a second internal gear; 82. a second drive gear; 9. a limiting ring; 91. fixing the rod; 93. rotating the cartridge; 94. a fixing frame.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses a high-efficiency separation process of water-containing isopropanol, which comprises the following construction steps: adding aqueous isopropanol to the separation tank 1; sodium hydroxide was added in an appropriate ratio, and the liquid in the separation tank 1 was sufficiently stirred, where the ratio of the sodium hydroxide added was 40kg/T. The stirred and mixed liquid was allowed to stand to allow the mixed solution to stratify. The water content of the aqueous isopropanol in the supernatant after the separation here was about 2%. The sodium hydroxide aqueous substance in the lower clear liquid can be recycled by a pressure dehydration mode. Then extracting the supernatant in the separation tank body 1, and rectifying to obtain the high-purity isopropanol. Specifically, the water content of the isopropanol obtained after rectification can be about 0.05% by azeotropic rectification and the like, so that the high-purity isopropanol can be obtained.
The embodiment of the application also discloses a high-efficient splitter of aqueous isopropanol, and referring to fig. 1, the high-efficient splitter of aqueous isopropanol includes that the knockout drum body 1, supernatant storage jar 11, lower clear liquid storage jar 12 and raffinate storage jar 13. The supernatant storage tank 11 is used for storing supernatant in the separation tank 1, the supernatant storage tank 12 is used for storing supernatant in the separation tank 1, and the residual liquid storage tank 13 is used for storing residual liquid in the separation tank 1.
Wherein, the last intercommunication of knockout drum body 1 has feed liquor pipe 14, first drain pipe 15, second drain pipe 16 and fluid-discharge tube 17, and the other end and the supernatant storage jar 11 of first drain pipe 15 are linked together, and the other end and the lower supernatant storage jar 12 of second drain pipe 16 are linked together. The other end of the liquid inlet pipe 14 is provided with a first three-way valve 141, the first three-way valve 141 is provided with a raw material pipe 142 and a circulation pipe 143, and both the raw material pipe 142 and the circulation pipe 143 can be communicated with the liquid inlet pipe 14 through the first three-way valve 141. The second three-way valve 171 is installed on the liquid discharge pipe 17, the drain pipe 172 and the excess material recycling pipe 173 are installed on the second three-way valve 171, and the drain pipe 172 and the excess material recycling pipe 173 can be communicated with the liquid discharge pipe 17 through the second three-way valve 171. The circulating pipe 143 is connected to the liquid outlet of the residual liquid storage tank 13, and the residual material recovering pipe 173 is connected to the liquid inlet of the residual liquid storage tank 13.
As shown in fig. 1 and fig. 2, a controller 2 is further installed on the separation tank body 1, an operation panel is further installed on the controller 2, a first density sensor 21 is installed at an end portion, located in the separation tank body 1, of the first liquid outlet pipe 15, and the first density sensor 21 is used for detecting liquid density at a port of the first liquid outlet pipe 15. The second density sensor 22 is installed to the tip that the second liquid outlet is located the knockout drum body 1, and second density sensor 22 is used for detecting the liquid density of second drain pipe 16 port department, mainly is used for detecting the liquid density of lower clear liquid in this application embodiment. Two output ends of the first density sensor 21 and the second density sensor 22 are electrically connected with two input ends of the controller 2 in a one-to-one correspondence manner, so that the controller 2 receives a plurality of liquid density information.
As shown in fig. 1 and 2, the water pumps are installed at the end portions of one end of the first liquid outlet pipe 15, the second liquid outlet pipe 16, the excess material recycling pipe 173 and the circulating pipe 143, and a plurality of control ends of the controller 2 are electrically connected with a plurality of control ends of the water pumps in a one-to-one correspondence manner. The remaining control ends of the controller 2 are electrically connected to the first valve 151, the second valve 161, the first three-way valve 141, and the second three-way valve 171 in a one-to-one correspondence. The controller 2 receives the two liquid density information fed back by the first density sensor 21 and the second density sensor 22, and controls the opening and closing of the plurality of water pumps and the plurality of valves according to the two liquid density information and the time information recorded by the controller 2.
After adding sodium hydroxide into the separation tank body 1 containing the water-containing isopropanol and uniformly stirring, standing for a period of time, recording the standing time as time information by the controller 2, then controlling the first valve 151, the second valve 161 and the two water pumps corresponding to the first valve 151 and the second valve 161 to be started by the controller 2 when the time length recorded in the time information is longer than the specified time length so as to extract the supernatant and the supernatant in the separation tank body 1, recording the extraction time length by the controller 2, and controlling the two water pumps to gradually slow down the liquid flow rates in the first liquid inlet pipe 14 and the second liquid inlet pipe 14 through the extraction time length so as to reduce the possibility that the supernatant flows into the supernatant storage tank 11 in the liquid extracting process.
Meanwhile, the liquid density at the end parts of the first liquid outlet pipe 15 and the second liquid outlet pipe 16 can be known in real time through the result of the feedback of the two liquid density information, so that the opening and closing of the first valve 151 and the second valve 161 can be controlled timely according to the fed-back liquid density, and the possibility that the lower clear liquid flows into the upper clear liquid storage tank 11 is further reduced.
As shown in fig. 3 and 4, a stirring assembly 3 and a driving assembly 4 are further arranged in the separation tank body 1, the stirring assembly 3 includes two mounting disks 31, two rotating disks 32 and a plurality of propeller blades 33, the two mounting disks 31 are fixedly mounted on the separation tank body 1, and arc-shaped grooves 311 are formed in the inner side walls of the two mounting disks 31. The rotating disc 32 is rotatably mounted on the mounting disc 31, the connecting ring 321 is integrally formed on the rotating disc 32, mounting rings are integrally formed on the upper side and the lower side of the connecting ring 321, and the two mounting rings are in one-to-one corresponding sliding connection with the two arc-shaped grooves 311. The plurality of propeller blades 33 are fixedly connected to the outer circumferential surface of the rotating disk 32, and the plurality of helical rings are uniformly distributed along the circumferential direction of the rotating disk 32.
The driving assembly 4 comprises a first internal gear 41, a first driving gear 42, a screw rod 43, a motor 44 and a screw rod 45, wherein the screw rod 45 is fixedly connected to the inner wall of the separation tank body 1, and the axial lead of the screw rod 45 is parallel to the axial lead of the separation tank body 1. Two mounting discs 31 settings are worn to locate simultaneously by screw rod 45, and two mounting discs 31 all with screw rod 45 fixed connection, and two mounting discs 31 all pass through screw rod 45 fixed mounting in the knockout drum body 1. The motor 44 is fixedly arranged on the top wall of the separation tank body 1, the screw rod 43 is rotatably arranged in the separation tank body 1, and the output shaft of the motor 44 penetrates through the top wall of the separation tank body 1 and is fixedly connected with the screw rod 43. The axial lead of the screw rod 43 is parallel to the axial lead of the screw rod 45, the screw rod 43 is arranged by penetrating through the two mounting discs 31, the screw rod 43 is rotatably connected with the two mounting discs 31, and the screw rod 43 is fixedly connected with the first driving gear 42. The first internal gear 41 is fixedly connected to the connecting ring 321, the first driving gear 42 is rotatably mounted between the two mounting plates 31, and the first driving gear 42 is engaged with the first internal gear 41.
The control end of motor 44 is connected with one of them control end electricity of controller 2, when the liquid in the knockout drum body 1 needs to be stirred, the staff only needs to control the motor 44 through controlling the panel and starts, the motor 44 starts and drives the lead screw 43 to rotate, the lead screw 43 rotates and drives the rotation of first drive gear 42, first drive gear 42 rotates and drives first internal gear 41 and rotates, first internal gear 41 rotates and drives go-between 321 and rolling disc 32 and rotate, rolling disc 32 rotates and drives a plurality of propeller blades 33 and rotate, thereby reach the purpose of being convenient for stir the liquid in the knockout drum body 1.
As shown in fig. 3 and 5, a floating plate 5 is further provided in the separator tank 1, and the floating plate 5 is movable in the axial direction of the screw 45. The outer peripheral surface of the floating plate 5 is fixedly connected with a hairbrush 53, and the hairbrush 53 is contacted with the inner wall of the separation tank body 1. Two guide strips 18 are fixedly connected to the separation tank body 1, and the length direction of the guide strips 18 is parallel to the axial direction of the screw 45. The brush 53 is provided with two guide grooves, and the two guide strips 18 are correspondingly matched with the two guide grooves one by one.
The separation tank body 1 is also provided with a connecting disc 54 and a pushing disc 64, the screw rod 45 is arranged through the connecting disc 54 and the pushing disc 64, the connecting disc 54 is connected with the screw rod 45 in a sliding mode, and the pushing disc 64 is fixedly connected with the screw rod 45. The screw rod 43 is simultaneously arranged through the connecting disc 54 and the pushing disc 64, the screw rod 43 is in threaded connection with the connecting disc 54, and the screw rod 43 is rotationally connected with the pushing disc 64.
As shown in fig. 1 and fig. 3, the first liquid outlet pipe 15 includes a first pipe 152, a second pipe 153, a rotating box 93 and two fixing frames 94, the two fixing frames 94 are both fixedly mounted on the inner side wall of the separation tank 1, the rotating box 93 is rotatably mounted between the two fixing frames 94, and a resetting member is further disposed between the rotating box 93 and the two fixing frames 94, where the resetting member may be a torsion spring or a coil spring. One end of the first pipe 152 is communicated with the supernatant storage tank 11, the other end of the first pipe 152 is rotatably connected with the side wall of the liquid inlet port of the rotating box 93, and the first pipe 152 and the rotating box 93 are arranged in a sealing mode. One end of the second pipeline 153 is fixedly connected with the liquid outlet port of the rotating box 93, and the other end of the second pipeline 153 is connected with the floating plate 5; the floating plate 5 is provided with a fixing assembly 7 for fixing the second pipeline 153.
As shown in fig. 3 and 6, a limiting ring 9 is further arranged at the end of the second pipeline 153 in a penetrating manner, a fixing rod 91 is fixedly connected to the limiting ring 9, the other end of the fixing rod 91 is fixedly connected to the top wall of the separation tank body 1, and the second pipeline 153 can be conveniently guided by the limiting ring 9 and the fixing rod 91.
As shown in fig. 5 and 6, the connecting plate 54 is provided with a connecting assembly 6 for connecting the floating plate 5, and the connecting plate 54 is further provided with a rotating assembly 8 for driving the floating plate 5 to rotate.
The connecting components 6 are arranged in two groups, and the two groups of connecting components 6 are symmetrically arranged about the axis of the push disk 64. Each group of connecting assemblies 6 comprises a limiting block 61, a first spring 62 and a pushing block 63, a sliding groove 541 for sliding the limiting block 61 is formed in the connecting disc 54, an annular limiting groove 51 for inserting the limiting block 61 is formed in the floating plate 5, an inclined surface is arranged on the top side of the limiting block 61, and the inclined surface of the limiting block 61 is inclined downwards from one side close to the axial lead of the pushing disc 64 to one side far away from the axial lead of the pushing disc 64. One end of the first spring 62 is fixedly connected to the inner side wall of the sliding groove 541, the other end of the first spring 62 is fixedly connected to the limiting block 61, the limiting block 61 is provided with a through hole 611, the connecting disc 54 is provided with a first through hole 542 and a second through hole 543, and the first through hole 542 and the second through hole 543 are all communicated with the through hole 611.
The pushing block 63 is fixedly connected to the bottom side of the pushing disc 64, and the pushing block 63 penetrates through the first through hole 542; the bottom side of the pushing block 63 is provided with an inclined surface, the side wall of the through hole 611 is provided with two symmetrically arranged inclined surfaces, and the inclined surface of the pushing block 63 is matched with the inclined surface of the upper half part of the side wall of the through hole 611, so that the limiting block 61 can be pushed into the sliding groove 541 by the pushing block 63. The pushing block 34 is further fixedly connected to the mounting plate 31 corresponding to the limiting block 61, an inclined surface is arranged on the top side of the pushing block 34, the inclined surface of the pushing block 34 is matched with the inclined surface, located on the lower half portion, of the side wall of the through hole 611, the pushing block 34 can only push the limiting block 61 to move into the sliding groove 541, and therefore only a portion of the inclined surface located on the outer side of the sliding groove 541 can exist on the top side of the limiting block 61.
As shown in fig. 5 and 6, the rotating assembly 8 includes a second internal gear 81 and a second driving gear 82, the second internal gear 81 is fixed on the inner circumferential surface of the floating plate 5, the bottom side of the connecting plate 54 is provided with a recess 544, and the second internal gear 81 is engaged with the recess 544. The second driving gear 82 is rotatably mounted on the connecting disc 54, the screw 45 is in threaded connection with the second driving gear 82, and the second driving gear 82 is meshed with the second internal gear 81.
As shown in fig. 6 and 7, the fixing assembly 7 includes a sliding rod 71, a second spring 72 and a clamping block 73, the floating plate 5 is provided with a connecting groove 52 communicated with the annular limiting groove 51, and the sliding rod 71 is slidably connected with a side wall of the connecting groove 52; the sliding rod 71 is provided with a strip-shaped connecting hole 711, the end of the second pipeline 153 penetrates through the connecting hole 711, and the end of the second pipeline 153 penetrates through the floating plate 5 at the same time.
The clamping block 73 is fixedly connected to the side wall of the connecting hole 711, and the second pipe 153 is provided with a clamping groove 154 for the clamping block 73 to be inserted and matched. One end of the second spring 72 is fixedly connected to the side wall of the connection hole 711, and the other end of the second spring 72 is fixedly connected to the sliding rod 71.
Before extracting the supernatant, the connecting disc 54 contacts with the pushing disc 64, the pushing block 63 pushes the limiting block 61 to move into the sliding groove 541, the clamping block 73 is matched with the clamping groove 154, the floating plate 5 is not connected with the connecting disc 54, and the end part of the second pipeline 153 is fixed on the floating plate 5. Then, the motor 44 is started to stir the liquid in the separation tank body 1, and in the process of starting the motor 44, the motor 44 can drive the connecting disc 54 to move towards the side close to the mounting disc 31 until the connecting disc 54 is matched with the mounting disc 31, and at the moment, the pushing block 34 can push the part of the limiting block 61 to move into the sliding groove 541.
In the process of extracting the supernatant, the floating plate 5 gradually moves to the side close to the mounting disc 31, and in the process of contacting the floating plate 5 and the mounting disc 31, the floating plate 5 can push the limiting block 61 to move to the sliding groove 541 under the action of the inclined surface of the limiting block 61. When the floating plate 5 contacts with the mounting disc 31, the limiting block 61 is inserted into the annular limiting groove 51 under the action of the first spring 62, at this moment, the limiting block 61 can push the sliding rod 71 to move, the sliding rod 71 moves to drive the clamping block 73 to move, so that the clamping block 73 is separated from the clamping groove 154, the fixing assembly 7 of the fixing assembly 7 to the second pipeline 153 is removed, the second pipeline 153 is wound on the rotating box 93 again under the action of the reset piece, and the second pipeline 153 is reset.
Then the motor 44 is started again, so that the connecting disc 54 moves close to one side of the pushing disc 64, the connecting disc 54 moves to drive the floating plate 5 to move, meanwhile, under the action of the screw rod 45, the second driving gear 82 rotates to drive the second internal gear 81 to rotate, the second internal gear 81 rotates to drive the floating plate 5 to rotate, and the floating plate 5 rotates to drive the hairbrush 53 to rotate, so that the inner side wall of the separation tank body 1 can be cleaned conveniently.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An efficient separation process of water-containing isopropanol is characterized by comprising the following steps:
adding aqueous isopropanol to the separation tank (1);
adding sodium hydroxide in proper proportion and fully stirring;
standing the mixed solution to enable the mixed solution to be layered;
taking the supernatant, and rectifying to obtain high-purity isopropanol;
the efficient separating equipment for the water-containing isopropanol applied to the separation process comprises a separating tank body (1), a supernatant storage tank (11) and a lower supernatant storage tank (12), wherein a liquid inlet pipe (14), a first liquid outlet pipe (15) and a second liquid outlet pipe (16) are communicated with the separating tank body (1);
the first liquid outlet pipe (15) is used for extracting supernatant in the separation tank body (1), and the second liquid outlet pipe (16) is used for extracting supernatant in the separation tank body (1); a first valve (151) is installed on the first liquid outlet pipe (15), and a second valve (161) is installed on the second liquid outlet pipe (16);
the efficient separation equipment for the water-containing isopropanol further comprises a residual liquid storage tank (13), the separation tank body (1) is also communicated with a liquid discharge pipe (17), a first three-way valve (141) is installed at the end part of the liquid inlet pipe (14), and a second three-way valve (171) is installed on the liquid discharge pipe (17); a raw material pipe (142) and a circulating pipe (143) are further mounted on the first three-way valve (141), and both the raw material pipe (142) and the circulating pipe (143) can be communicated with the liquid inlet pipe (14) through the first three-way valve (141); a sewage discharge pipe (172) and a residual material recycling pipe (173) are also arranged on the second three-way valve (171); the sewage discharge pipe (172) and the excess material recovery pipe (173) can be communicated with the liquid discharge pipe (17) through the second three-way valve (171);
the first liquid outlet pipe (15) is communicated with the supernatant storage tank (11); the second liquid outlet pipe (16) is communicated with the lower clear liquid storage tank (12), the residual material recovery pipe (173) is communicated with a liquid inlet of the residual liquid storage tank (13), and the circulating pipe (143) is communicated with a liquid outlet of the residual liquid storage tank (13).
2. An efficient separating device for water-containing isopropanol, which is applied to the efficient separating process for the water-containing isopropanol in claim 1, is characterized in that: the device comprises a separation tank body (1), a supernatant storage tank (11) and a lower supernatant storage tank (12), wherein a liquid inlet pipe (14), a first liquid outlet pipe (15) and a second liquid outlet pipe (16) are communicated with the separation tank body (1);
the first liquid outlet pipe (15) is used for extracting supernatant in the separation tank body (1), and the second liquid outlet pipe (16) is used for extracting supernatant in the separation tank body (1); a first valve (151) is installed on the first liquid outlet pipe (15), and a second valve (161) is installed on the second liquid outlet pipe (16);
the efficient separation equipment for the water-containing isopropanol further comprises a residual liquid storage tank (13), the separation tank body (1) is also communicated with a liquid discharge pipe (17), a first three-way valve (141) is installed at the end part of the liquid inlet pipe (14), and a second three-way valve (171) is installed on the liquid discharge pipe (17); a raw material pipe (142) and a circulating pipe (143) are further mounted on the first three-way valve (141), and both the raw material pipe (142) and the circulating pipe (143) can be communicated with the liquid inlet pipe (14) through the first three-way valve (141); a sewage discharge pipe (172) and a residual material recycling pipe (173) are also arranged on the second three-way valve (171); the sewage discharge pipe (172) and the excess material recovery pipe (173) can be communicated with the liquid discharge pipe (17) through the second three-way valve (171);
the first liquid outlet pipe (15) is communicated with the supernatant storage tank (11); the second liquid outlet pipe (16) is communicated with the lower clear liquid storage tank (12), the residual material recovery pipe (173) is communicated with a liquid inlet of the residual liquid storage tank (13), and the circulating pipe (143) is communicated with a liquid outlet of the residual liquid storage tank (13);
the separation tank body (1) is also provided with a controller (2), and the end part of the first liquid outlet pipe (15) positioned in the separation tank body (1) is provided with a first density sensor (21) for detecting the density of supernatant; a second density sensor (22) is arranged at the end part of the second liquid outlet pipe (16) positioned in the separation tank body (1) and is used for detecting the density of the lower clear liquid;
two input ends of the controller (2) are electrically connected with two output ends of the first density sensor (21) and the second density sensor (22) in a one-to-one correspondence manner so as to receive a plurality of liquid density information collected by the first density sensor (21) and the second density sensor (22); and a plurality of control ends of the controller (2) are electrically connected with the first valve (151), the second valve (161), the first three-way valve (141) and the second three-way valve (171) in a one-to-one correspondence manner so as to respond to a plurality of liquid density information to control the opening and closing of the plurality of valves.
3. The high-efficiency separation equipment for the water-containing isopropanol as claimed in claim 2, wherein: the separation tank body (1) is provided with a stirring assembly (3), the stirring assembly (3) comprises an installation disc (31), a rotating disc (32) and a plurality of propeller blades (33), the installation disc (31) is fixedly installed in the separation tank body (1), and the rotating disc (32) is rotatably installed on the installation disc (31); the plurality of propeller blades (33) are fixedly connected to the rotating disc (32); and a driving assembly (4) for driving the rotating disc (32) to rotate is further arranged in the separation tank body (1).
4. The high-efficiency separation equipment for the water-containing isopropanol as claimed in claim 3, wherein: the driving assembly (4) comprises a first internal gear (41), a first driving gear (42), a screw rod (43) and a motor (44), the motor (44) is fixedly installed on the separation tank body (1), the screw rod (43) is fixedly connected with an output shaft of the motor (44), the screw rod (43) is rotatably connected with the side wall of the separation tank body (1), and the screw rod (43) is in threaded connection with the installation disc (31); a screw rod (45) is fixedly connected in the separation tank body (1), and the screw rod (45) is in sliding connection with the mounting disc (31); the first internal gear (41) is fixedly connected with the rotating disc (32), the first driving gear (42) is rotatably installed on the mounting disc (31), and the first internal gear (41) is meshed with the first driving gear (42).
5. The high-efficiency separation equipment for the water-containing isopropanol as claimed in claim 4, wherein: a floating plate (5) is further arranged in the separation tank body (1), a brush (53) is fixedly connected to the outer peripheral surface of the floating plate (5), and the brush (53) is in contact with the side wall of the separation tank body (1); the floating plate (5) is provided with a fixing assembly (7) for fixing the first liquid outlet pipe (15);
the screw rod (45) is connected with a connecting disc (54) in a sliding mode, the screw rod (43) is in threaded connection with the connecting disc (54), the screw rod (45) penetrates through the connecting disc (54) and is connected with the connecting disc (54) in a sliding mode; the connecting plate (54) is provided with a connecting assembly (6) for the floating plate (5), and the connecting plate (54) is also provided with a rotating assembly (8) for driving the floating plate (5) to rotate.
6. The high-efficiency separation equipment for the water-containing isopropanol as claimed in claim 5, wherein: the connecting assembly (6) comprises a limiting block (61), a first spring (62) and a pushing block (63), a sliding groove (541) for the limiting block (61) to slide is formed in the connecting disc (54), an annular limiting groove (51) for the limiting block (61) to be inserted is formed in the floating plate (5), and an inclined surface is arranged on the top side of the limiting block (61);
one end of the first spring (62) is fixedly connected to the inner side wall of the sliding groove (541), the other end of the first spring (62) is fixedly connected to the limiting block (61), the limiting block (61) is provided with a through hole (611), the connecting disc (54) is provided with a first through hole (542), and the first through hole (542) is communicated with the through hole (611);
the screw rod (45) is fixedly connected with a pushing disc (64), the pushing block (63) is fixedly connected to the bottom side of the pushing disc (64), and the pushing block (63) penetrates through the first through hole (542); the bottom side of the pushing block (63) is provided with an inclined surface, the side wall of the through hole (611) is provided with an inclined surface, and the inclined surface of the pushing block (63) is matched with the inclined surface on the side wall of the through hole (611).
7. The efficient separation equipment for the water-containing isopropanol as claimed in claim 6, wherein: the fixed component (7) comprises a sliding rod (71), a second spring (72) and a clamping block (73), the floating plate (5) is provided with a connecting groove (52), and the sliding rod (71) is in sliding connection with the side wall of the connecting groove (52); a connecting hole (711) is formed in the sliding rod (71), and the first liquid outlet pipe (15) penetrates through the connecting hole (711); the clamping block (73) is fixedly connected to the side wall of the connecting hole (711), and the first liquid outlet pipe (15) is provided with a clamping groove (154) for the clamping block (73) to be inserted and matched; one end of the second spring (72) is fixedly connected to the side wall of the connecting hole (711), and the other end of the second spring (72) is fixedly connected to the sliding rod (71).
8. The high-efficiency separation equipment for the water-containing isopropanol as claimed in claim 5, wherein: the rotating assembly (8) comprises a second internal gear (81) and a second driving gear (82), a yielding groove (544) is formed in the bottom side of the connecting disc (54), and the second internal gear (81) is matched with the yielding groove (544); the second driving gear (82) is rotatably mounted on the connecting disc (54), and the second driving gear (82) is meshed with the second internal gear (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210875363.4A CN115259999B (en) | 2022-07-25 | 2022-07-25 | High-efficiency separation process and equipment for water-containing isopropanol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210875363.4A CN115259999B (en) | 2022-07-25 | 2022-07-25 | High-efficiency separation process and equipment for water-containing isopropanol |
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| CN115259999B true CN115259999B (en) | 2023-03-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63111908A (en) * | 1986-10-27 | 1988-05-17 | Daicel Chem Ind Ltd | Method and apparatus for separating azeotropic mixture |
| CN106905115A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | A kind of method and device of aqueous acetone hydrogenation products separating isopropanol |
| CN108103585A (en) * | 2017-12-25 | 2018-06-01 | 湖州富优得膜分离科技有限公司 | A kind of processing method of fine-hair maring using monocrystalline silicon slice waste liquid |
-
2022
- 2022-07-25 CN CN202210875363.4A patent/CN115259999B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63111908A (en) * | 1986-10-27 | 1988-05-17 | Daicel Chem Ind Ltd | Method and apparatus for separating azeotropic mixture |
| CN106905115A (en) * | 2015-12-23 | 2017-06-30 | 中国石油天然气股份有限公司 | A kind of method and device of aqueous acetone hydrogenation products separating isopropanol |
| CN108103585A (en) * | 2017-12-25 | 2018-06-01 | 湖州富优得膜分离科技有限公司 | A kind of processing method of fine-hair maring using monocrystalline silicon slice waste liquid |
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