Separation equipment for production of perfluorononenoxy sodium benzenesulfonate

Abstract

The invention relates to the technical field of separation equipment, and discloses separation equipment for perfluorononenoxy sodium benzenesulfonate production, which comprises a tank body, the tank body is vertically distributed, the lower end of the tank body is provided with a bottom cover, the outer side of the tank body is provided with a bracket, the top end of the tank body is provided with an upper seat body, and the upper seat body is provided with a feeding pipe and a motor; the feeding pipe is communicated with the interior of the tank body, a rotating part is installed in the tank body, and the top end of the rotating part extends out of the tank body and is in transmission connection with a motor. In the rotating process of the rotating piece, the outer spiral blade pushes mixed liquid in the tank body to move downwards and conduct centrifugal motion, the inner spiral blade pushes liquid entering the outer barrel body to move upwards, and the liquid is discharged through the liquid discharging end; liquid close to the outer cylinder body enters the outer cylinder body through the strip-shaped grooves, the distance between the liquid and the inner wall of the tank body is increased through the conical structure, and the purity of internal liquid with small density is improved.

Description

Technical Field

[0001] The invention relates to the technical field of separation equipment, in particular to separation equipment for producing sodium perfluorononenyloxybenzenesulfonate. Background Art

[0002] Sodium perfluorononenyloxybenzenesulfonate is a fluorocarbon surfactant with low surface tension and critical micelle concentration. It is resistant to acid and alkali and can maintain good surface activity in strong acids and alkalis. It is mainly used in fluoroprotein fire extinguishing agents, nickel plating brighteners, metal etching agents, detergents, leveling agents for color films, and as a polymerization dispersant in the resin polymerization process. It is widely used in oil fields, fire protection, leather, electroplating, papermaking and other fields.

[0003] The extraction of sodium perfluorononenyloxybenzenesulfonate is achieved through extraction centrifugal separation. In the mixed transfer chamber, the light and heavy phase solutions are mixed and dispersed by a high-speed rotating drum or blades to achieve sufficient mass transfer. Subsequently, the mixed liquid rotates at a high speed in the drum, and the two phases of liquid with different densities are separated by centrifugal force, with the heavy phase leaning against the drum wall and the light phase leaning against the center, and finally separated through their respective outlets. During the extraction on the existing market, due to the small channel cross-section of the heavy component and the light component, after the heavy component and the light component are mixed and discharged, the solution in the light component contains the heavy component substance. Summary of the invention

[0004] The object of the present invention is to provide a separation device for producing sodium perfluorononenyloxybenzenesulfonate to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a separation device for producing sodium perfluorononenyloxybenzenesulfonate, comprising a tank body, the tank body is vertically distributed, a bottom cover is installed at the lower end of the tank body, and a bracket is installed on the outer side of the tank body;

[0007] Wherein, a drainage pipe is provided on the bottom cover;

[0008] An upper seat is installed at the top of the tank body, a feeding pipe and a motor are installed on the upper seat body, the feeding pipe is connected to the inside of the tank body, a rotating part is installed inside the tank body, the top of the rotating part extends out of the tank body, and the top of the rotating part is transmission connected to the motor.

[0009] Sodium perfluorononenyloxybenzenesulfonate is an important chemical raw material, widely used in coatings, automobile manufacturing, electronic products and building materials. Its preparation method usually involves etherification, sulfonation and neutralization reaction steps. The synthesized sodium perfluorononenyloxybenzenesulfonate usually needs to be purified by crystallization, solvent extraction, distillation and other methods to improve the purity and quality stability of the product. Crystallization is one of the most commonly used purification methods. By adjusting the type and concentration of the solvent, OBS is crystallized at an appropriate temperature, and then pure OBS crystals are obtained through filtering, washing and drying.

[0010] The extraction of sodium perfluorononenyloxybenzenesulfonate is achieved through extraction centrifugal separation. In the mixed transfer chamber, the light and heavy phase solutions are mixed and dispersed by the high-speed rotating drum or blades to achieve sufficient mass transfer. Subsequently, the mixed liquid rotates at high speed in the drum, and the two phases of liquid with different densities are separated by centrifugal force, with the heavy phase leaning against the drum wall and the light phase leaning against the center, and finally separated through their respective outlets.

[0011] The mixed liquid enters the interior of the tank through the feeding pipe, and the liquids with different densities in the liquid are centrifugally separated by the rotating part. The liquid with high density is close to the inner wall of the tank and is discharged through the drain pipe provided on the bottom cover. The liquid with low density is close to the outer side of the rotating part and is discharged through the top of the rotating part.

[0012] Furthermore, the rotating part includes an outer cylinder and a rod body, the outer side of the rod body is sleeved with the outer cylinder, and a discharge end is installed on the outer cylinder and the top opening of the rod body, the bottom end of the outer cylinder is a conical structure, and the outer surface of the conical structure is provided with a strip groove, the outer side surface of the outer cylinder is provided with an outer spiral blade, and the outer side of the rod body is provided with an inner spiral blade, and the inner spiral blades are all located in the outer cylinder.

[0013] During the rotation of the rotating part, the outer spiral blade pushes the mixed liquid inside the tank body downward and performs centrifugal motion, and the inner spiral blade pushes the liquid that has entered the outer cylinder body to move upward and be discharged through the discharge end;

[0014] Since the outer surface of the conical structure is provided with strip grooves, the liquid close to the outer cylinder enters the inner part of the outer cylinder through the strip grooves, and the conical structure increases the distance from the inner wall of the tank, thereby preventing the outer liquid from entering the inner part of the outer cylinder and improving the purity of the internal liquid with low density;

[0015] The upper seat body is provided with three through slots, and two adjacent through slots are connected by a connecting slot. The three through slots are respectively installed with a motor, an outer cylinder and a feeding pipe, and the outer cylinder is located between the motor and the feeding pipe.

[0016] Furthermore, a driving pulley is installed on the output section of the motor, a double pulley is installed on the end of the outer cylinder, a single pulley is sleeved on the outer side of the feeding pipe, the driving pulley and the double pulley are connected by a second belt transmission, and the double pulley and the single pulley are connected by a first belt transmission.

[0017] The outer cylinder and the feeding tube are driven to rotate by a single motor.

[0018] Furthermore, the driving pulley is provided with a plurality of T-slots, a slider is installed in the T-slot, the end surface of the slider extends through the T-slot, and a baffle is provided at the end of the driving pulley, and the baffle is sleeved on the output shaft of the motor.

[0019] During high-speed rotation, the temperature between the rotating components rises. After the heat is transferred to the second belt, the temperature of the second belt rises, causing the second belt to stretch slightly. As the second belt stretches, it is easy for the second belt to loosen during transmission, resulting in transmission failure. During high-speed rotation, the slider moves outward along the T-slot under the action of centrifugal force, thereby squeezing the second belt and effectively reducing the problem of slipping of the second belt during transmission.

[0020] Furthermore, the top of the tank body is a conical surface, a feed pipe is provided on the conical surface, the feed pipe is rotatably connected to the feeding pipe, and a spiral ridge is provided inside the feeding pipe.

[0021] The mixed liquid is promoted to enter the interior of the tank body through the rotating feeding pipe and the spiral convex ridges arranged inside the feeding pipe.

[0022] Furthermore, the bottom cover is provided with a scraper, which is sleeved on the rod body. The scraper includes a disc body and a scraper. A plurality of columns are installed on the end surface of the disc body, and the scraper is installed on the column. The side of the scraper is attached to the inner wall of the tank body.

[0023] The disc separates the liquid with high density from the liquid with low density inside the bottom cover, so as to prevent the liquid with high density and the liquid with low density moving downward from mixing inside the bottom cover;

[0024] When the mixed liquid contains particles, the particles are easily attached to the inner wall of the tank under the action of centrifugation. The side of the scraper sticks to the inner wall of the tank and rotates along the inner wall of the tank to clean the particles.

[0025] Furthermore, the cross section of the scraper is in the shape of a water drop, and a material guide channel is provided on the side of the scraper;

[0026] The material guide channels are all located on the outside of the disc body. The attachments scraped off by the side of the scraper flow to one side through the material guide channels, which effectively solves the problem that after the attachments are scraped off by the side of the scraper, the attachments enter the inside of the disc body along the inclined surface of the scraper, thereby achieving the mixing of the attachments with the liquid with low density.

[0027] The present invention has the following beneficial effects:

[0028] (1) In the present invention, during the rotation of the rotating part, the outer spiral blade pushes the mixed liquid in the tank body downward and performs centrifugal motion, and the inner spiral blade pushes the liquid that has entered the outer cylinder body to move upward and be discharged through the liquid discharge end. Since the outer surface of the conical structure is provided with strip grooves, the liquid close to the outer cylinder body enters the outer cylinder body through the strip grooves. The conical structure increases the distance from the inner wall of the tank body, thereby preventing the outer liquid from entering the outer cylinder body, thereby improving the purity of the internal liquid with low density.

[0029] (2) During the high-speed rotation of the present invention, the temperature between the rotating components increases. After the heat is transferred to the second belt, the temperature of the second belt increases, causing the second belt to stretch slightly. As the second belt stretches, it is easy for the second belt to loosen during the transmission process, resulting in transmission failure. During the high-speed rotation, the slider moves outward along the T-slot under the action of centrifugal force, thereby squeezing the second belt and effectively reducing the problem of the second belt slipping during the transmission process.

[0030] (3) The disk of the present invention separates the high-density liquid and the low-density liquid located inside the bottom cover, thereby preventing the high-density liquid and the low-density liquid moving downward from mixing inside the bottom cover. When particulate matter is contained in the mixed liquid, the particulate matter is easily attached to the inner wall of the tank body under the action of centrifugation, and the side edge of the scraper sticks to the inner wall of the tank body and rotates along the inner wall of the tank body, thereby cleaning the particulate matter.

[0031] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-section structure;

[0035] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0036] Figure 4 This is a schematic diagram of the installation structure of the upper seat body of the present invention;

[0037] Figure 5 For the present invention Figure 4 Schematic diagram of the cross-section structure;

[0038] Figure 6 It is a schematic diagram of the partial explosion structure of the present invention;

[0039] Figure 7 This is a schematic diagram of the installation structure of the scraper of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of the scraper of the present invention;

[0041] Fig. 9 For the present invention Figure 8 Schematic diagram of the cross-section structure;

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] In the figure: 1, tank body; 101, feed pipe; 2, bottom cover; 201, discharge pipe; 3, bracket; 4, upper seat body; 401, connecting groove; 402, ring body; 403, connecting flange; 404, through groove; 5, feeding pipe; 6, rotating part; 601, outer cylinder; 6011, strip groove; 602, outer spiral blade; 603, rod body; 604, inner spiral blade; 605, discharge end; 7, motor; 8, baffle; 9, scraper; 901, disc body; 9011, boss; 902, scraper; 9021, material guide channel; 903, column; 10, double pulley; 11, single pulley; 12, first belt; 13, driving pulley; 1301, T-slot; 14, slider; 15, second belt. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 9 As shown, the present invention is a separation device for producing sodium perfluorononenyloxybenzenesulfonate, comprising a tank body 1, the tank body 1 is vertically distributed, a bottom cover 2 is installed at the lower end of the tank body 1, and a bracket 3 is installed on the outer side of the tank body 1;

[0046] Wherein, a drain pipe 201 is provided on the bottom cover 2;

[0047] An upper base body 4 is installed at the top of the tank body 1, and a feeding pipe 5 and a motor 7 are installed on the upper base body 4. The feeding pipe 5 is connected to the interior of the tank body 1. A rotating part 6 is installed inside the tank body 1. The top end of the rotating part 6 extends out of the tank body 1, and the top end of the rotating part 6 is transmission connected to the motor 7.

[0048] Sodium perfluorononenyloxybenzenesulfonate is an important chemical raw material, widely used in coatings, automobile manufacturing, electronic products and building materials. Its preparation method usually involves etherification, sulfonation and neutralization reaction steps. The synthesized sodium perfluorononenyloxybenzenesulfonate usually needs to be purified by crystallization, solvent extraction, distillation and other methods to improve the purity and quality stability of the product. Crystallization is one of the most commonly used purification methods. By adjusting the type and concentration of the solvent, OBS is crystallized at an appropriate temperature, and then pure OBS crystals are obtained through filtering, washing and drying.

[0049] The extraction of sodium perfluorononenyloxybenzenesulfonate is achieved through extraction centrifugal separation. In the mixed transfer chamber, the light and heavy phase solutions are mixed and dispersed by the high-speed rotating drum or blades to achieve sufficient mass transfer. Subsequently, the mixed liquid rotates at high speed in the drum, and the two phases of liquid with different densities are separated by centrifugal force, with the heavy phase leaning against the drum wall and the light phase leaning against the center, and finally separated through their respective outlets.

[0050] The mixed liquid enters the interior of the tank body 1 through the feeding pipe 5, and the liquids with different densities in the liquid are centrifugally separated by the rotating part 6. The liquid with high density is close to the inner wall of the tank body 1 and is discharged through the drain pipe 201 provided on the bottom cover 2. The liquid with low density is close to the outer side of the rotating part 6 and is discharged through the top of the rotating part 6.

[0051] The rotating member 6 includes an outer cylinder 601 and a rod body 603. The outer side of the rod body 603 is sleeved with the outer cylinder 601. The outer cylinder 601 and the top opening of the rod body 603 are provided with a discharge end 605. The bottom end of the outer cylinder 601 is a conical structure. The outer surface of the conical structure is provided with a strip groove 6011. The outer side surface of the outer cylinder 601 is provided with an outer spiral blade 602. The outer side of the rod body 603 is provided with an inner spiral blade 604. The inner spiral blade 604 is located inside the outer cylinder 601.

[0052] During the rotation of the rotating member 6, the outer spiral blade 602 pushes the mixed liquid inside the tank body 1 downward and performs centrifugal motion, and the inner spiral blade 604 pushes the liquid entering the outer cylinder 601 upward and is discharged through the liquid discharge end 605;

[0053] Since the outer surface of the conical structure is provided with a strip groove 6011, the liquid close to the outer cylinder 601 enters the inner part of the outer cylinder 601 through the strip groove 6011, and the conical structure increases the distance with the inner wall of the tank body 1, thereby preventing the outer liquid from entering the inner part of the outer cylinder 601, and improving the purity of the internal liquid with low density;

[0054] The upper seat body 4 is provided with three through slots 404 , and two adjacent through slots 404 are connected via a connecting slot 401 . The motor 7 , the outer cylinder 601 and the feeding pipe 5 are respectively installed in the three through slots 404 , and the outer cylinder 601 is located between the motor 7 and the feeding pipe 5 .

[0055] A driving pulley 13 is installed at the output end of the motor 7, a double pulley 10 is installed at the end of the outer cylinder 601, a single pulley 11 is sleeved on the outer side of the feeding tube 5, the driving pulley 13 and the double pulley 10 are connected to each other through a second belt 15, and the double pulley 10 and the single pulley 11 are connected to each other through a first belt 12.

[0056] The outer cylinder 601 and the feeding tube 5 are driven to rotate by a single motor 7 .

[0057] The driving pulley 13 is provided with a plurality of T-slots 1301 , in which a slider 14 is installed, and the end surface of the slider 14 extends through the T-slot 1301 . A baffle 8 is provided at the end of the driving pulley 13 , and the baffle 8 is sleeved on the output shaft of the motor 7 .

[0058] During high-speed rotation, the temperature between the rotating components increases. After the heat is transferred to the second belt 15, the temperature of the second belt 15 increases, causing the second belt 15 to stretch slightly. As the second belt 15 stretches, it is easy for the second belt 15 to loosen during the transmission process, resulting in transmission failure. During high-speed rotation, the slider 14 moves outward along the T-slot 1301 under the action of centrifugal force, thereby squeezing the second belt 15 and effectively reducing the problem of the second belt 15 slipping during the transmission process.

[0059] The top of the tank body 1 is a conical surface, on which a feed pipe 101 is arranged. The feed pipe 101 is rotatably connected to the feeding pipe 5 , and the inside of the feeding pipe 5 is provided with a spiral convex ridge.

[0060] The mixed liquid is promoted to enter the interior of the tank body 1 by the rotating feeding pipe 5 and the spiral ridges arranged inside the feeding pipe 5 .

[0061] The bottom cover 2 is provided with a scraper 9, which is sleeved on the rod body 603. The scraper 9 includes a disc body 901 and a scraper 902. A plurality of columns 903 are installed on the end surface of the disc body 901, and the scraper 902 is installed on the column 903. The side of the scraper 902 is attached to the inner wall of the tank body 1.

[0062] The disk 901 separates the liquid with high density from the liquid with low density inside the bottom cover 2, so as to prevent the liquid with high density and the liquid with low density moving downward from mixing inside the bottom cover 2;

[0063] When the mixed liquid contains particles, the particles are easily attached to the inner wall of the tank body 1 under the action of centrifugation. The scraper 902 is attached to the inner wall of the tank body 1 through the side and rotates along the inner wall of the tank body 1 to clean the particles.

[0064] The cross section of the scraper 902 is in the shape of a water drop, and a material guide channel 9021 is provided on the side of the scraper 902;

[0065] The material guide channels 9021 are all located on the outside of the disk body 901. The attachments scraped off by the side of the scraper 902 flow to one side through the material guide channels 9021, which effectively solves the problem that after the attachments are scraped off by the side of the scraper 902, the attachments enter the inside of the disk body 901 along the inclined surface of the scraper 902, thereby achieving the mixing of the attachments with the liquid with low density.

[0066] The mixed liquid enters the tank body 1 through the feeding pipe 5, and the liquids with different densities in the liquid are centrifugally separated by the rotating member 6. The liquid with high density is close to the inner wall of the tank body 1 and is discharged through the drain pipe 201 provided on the bottom cover 2. The liquid with low density is close to the outer side of the rotating member 6. During the rotation of the rotating member 6, the outer spiral blade 602 pushes the mixed liquid inside the tank body 1 downward and performs centrifugal motion, and the inner spiral blade 604 pushes the liquid entering the outer cylinder 601 to move upward and be discharged through the drain end 605.

[0067] Particles are easily attached to the inner wall of the tank body 1 , and the scraper 902 is attached to the inner wall of the tank body 1 by the side and rotates along the inner wall of the tank body 1 to clean the particles.

[0068] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A separation device for producing sodium perfluorononenyloxybenzenesulfonate, comprising a tank (1), characterized in that: The tank body (1) is distributed vertically; A bottom cover (2) is installed at the lower end of the tank body (1), and a bracket (3) is installed on the outer side of the tank body (1); Wherein, a liquid discharge pipe (201) is provided on the bottom cover (2); An upper seat (4) is installed at the top of the tank body (1), a feeding pipe (5) and a motor (7) are installed on the upper seat body (4), and the feeding pipe (5) is connected to the interior of the tank body (1); A rotating member (6) is installed inside the tank body (1), the top end of the rotating member (6) extends out of the tank body (1), and the top end of the rotating member (6) is transmission-connected to a motor (7).

2. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 1, characterized in that: The rotating member (6) comprises an outer cylinder (601) and a rod (603); The outer side of the rod body (603) is sleeved with an outer cylinder (601), and a liquid discharge end (605) is installed on the top opening of the outer cylinder (601) and the rod body (603). The bottom end of the outer cylinder (601) is a conical structure, and a strip groove (6011) is opened on the outer surface of the conical structure. An outer spiral blade (602) is provided on the outer side surface of the outer cylinder (601); The outer side of the rod body (603) is provided with inner spiral blades (604), and the inner spiral blades (604) are all located inside the outer cylinder (601).

3. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 1, characterized in that: The upper seat body (4) is provided with three through slots (404), and two adjacent through slots (404) are connected via a connecting slot (401); The three through grooves (404) are respectively installed with a motor (7), an outer cylinder (601) and a feeding pipe (5), and the outer cylinder (601) is located between the motor (7) and the feeding pipe (5).

4. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 3, characterized in that: The output section of the motor (7) is equipped with a driving pulley (13), the end of the outer cylinder (601) is equipped with a double pulley (10), and the outer side of the feeding pipe (5) is sleeved with a single pulley (11); The driving pulley (13) and the double pulley (10) are connected to each other through a second belt (15); The double pulley (10) and the single pulley (11) are connected in transmission via a first belt (12).

5. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 4, characterized in that: The driving pulley (13) is provided with a plurality of T-shaped slots (1301), a slider (14) is installed in the T-shaped slots (1301), and the end surface of the slider (14) extends out through the T-shaped slots (1301); A baffle (8) is provided at the end of the driving pulley (13), and the baffle (8) is sleeved on the output shaft of the motor (7).

6. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 1, characterized in that: The top end of the tank body (1) is a conical surface, on which a feed pipe (101) is provided, and the feed pipe (101) is rotatably connected to the feeding pipe (5).

7. A separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 6, characterized in that: The inside of the feeding pipe (5) is provided with a spiral ridge.

8. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 1, characterized in that: The bottom cover (2) is provided with a scraper (9), and the scraper (9) is sleeved on the rod body (603); The scraper (9) comprises a disk body (901) and a scraper (902); a plurality of columns (903) are mounted on the end surface of the disk body (901); and the scraper (902) is mounted on the columns (903); The side edge of the scraper (902) is attached to the inner wall of the tank body (1).

9. The separation device for producing sodium perfluorononenyloxybenzenesulfonate according to claim 8, characterized in that: The cross section of the scraper (902) is in the shape of a water drop; A material guiding channel (9021) is provided on the side of the scraper (902).

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