Rectifying tower for dinitolmide reaction

Abstract

The utility model discloses a rectifying tower for dinitolmide reaction, relates to the field of rectifying towers, and aims to solve the problems that impurities are remained on an internal tower plate after the conventional distillation tower is used for a long time, and when the impurities are excessive, liquid falling holes are blocked, so that the working efficiency of the distillation tower is influenced. A water injection pipe is arranged in the middle of the upper end of the rectifying tower, a plurality of tower plates are fixedly connected into the rectifying tower, a plurality of liquid falling holes are formed in the tower plates, the middles of the liquid falling holes are jointly and rotationally connected with a rotating pipe, and the joint of the rotating pipe and each tower plate is fixedly connected with an annular connecting piece. The upper and lower ends of the tower plates are fixedly connected with rotating pipes on two sides of the rotating pipes, the lower ends of the rotating pipes are fixedly connected with scraping plates, one sides of the rotating pipes are fixedly connected with a plurality of flat-mouth nozzles, and a transmission box is arranged in the middle of the lower end of the tower plate on the lowest layer.

Description

Technical Field

[0001] The utility model relates to the field of distillation towers, in particular to a distillation tower used for dinitolamide reaction. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. By utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, while the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation.

[0003] Application No. 202022613290.0 A distillation tower comprises a tower body, wherein the tower body is provided with a plurality of tower plates, on which a plurality of sieve holes are evenly arranged, a gas inlet is arranged on the side wall of the tower body below the bottommost tower plate, a gas outlet is arranged on the top of the tower body, a liquid outlet is arranged on the bottom of the tower body, a reflux liquid inlet is arranged on the side wall of the tower body above the topmost tower plate, a feed port is arranged in the middle of the tower body, and the feed port is located above the middle tower plate among the plurality of tower plates; an adjusting shaft is rotatably installed between the top and bottom of the tower body, one end of the adjusting shaft is connected to a driving device, and an aperture adjusting plate is respectively installed on the upper or lower side of each tower plate of the adjusting shaft, and a plurality of adjusting holes with the same aperture as the sieve holes are arranged on the aperture adjusting plate, and the plurality of adjusting holes and the plurality of sieve holes correspond to each other one by one.

[0004] In the production of dinitramide, a distillation tower is required for reaction. After long-term use of the existing distillation tower, impurities will remain on the internal tower plate. When there are too many impurities, the liquid droplets will be blocked, thereby affecting the working efficiency of the distillation tower. Therefore, the market urgently needs to develop a distillation tower for dinitramide reaction to help people solve the existing problems. Utility Model Content

[0005] The utility model aims to provide a distillation tower for dinitramide reaction, so as to solve the problem in the above-mentioned background technology that after long-term use of the existing distillation tower, impurities will remain on the internal tower plate, and when the impurities are too much, the liquid drop holes will be blocked, thereby affecting the working efficiency of the distillation tower.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a distillation tower for dinitramide reaction, comprising a distillation tower, a gas input pipe is arranged at the lower end of one side of the distillation tower, a raw material liquid input pipe is arranged at the middle of one side of the distillation tower, a reflux liquid input pipe is arranged at the upper end of the other side of the distillation tower, a gas discharge pipe is arranged at one side of the middle of the upper end of the distillation tower, a water injection pipe is arranged at the middle of the upper end of the distillation tower, a liquid discharge pipe is arranged at the middle of the lower end of the distillation tower, a plurality of tower plates are fixedly connected inside the distillation tower, a plurality of liquid drop holes are arranged on the tower plates, a rotating tube is connected to the middle of the plurality of liquid drop holes for common rotation, an annular connecting piece is fixedly connected at the connection between the rotating tube and each tower plate, the upper and lower ends of the tower plates are fixedly connected to rotating tubes on both sides of the rotating tube, a scraper is fixedly connected to the lower end of the rotating tube, a plurality of flat nozzles are fixedly connected to one side of the rotating tube, and a transmission box is arranged at the middle of the lower end of the bottom tower plate.

[0007] Preferably, the side end surface of the annular connector is provided with an annular limiting groove, and the edge of the circular hole of the tower plate is inserted into the annular limiting groove.

[0008] Preferably, the lower end of the water injection pipe extends to the interior of the distillation tower and is fixedly connected to a rotating pipe joint, and the upper end of the rotating pipe is fixedly connected to the lower end of the rotating pipe joint.

[0009] Preferably, the transmission box is fixedly connected to the inner end face of the distillation tower through a support rod, the lower end of the rotating tube extends out of the lower end of the lowest tower plate and is fixedly connected to a rotating shaft, and the lower end of the rotating shaft extends into the transmission box and is fixedly connected to a first conical tooth.

[0010] Preferably, a fixed tube is fixedly connected to one side of the transmission box, a transmission shaft is arranged inside the fixed tube, and one end of the transmission shaft extends into the transmission box and is fixedly connected to a second conical tooth.

[0011] Preferably, the first conical teeth on the rotating shaft are meshingly connected with the second conical teeth on the transmission shaft.

[0012] Preferably, a motor box is fixedly connected to the lower end of one side of the distillation tower, a motor is arranged inside the motor box, and the other end of the transmission shaft extends into the motor box and is fixedly connected to the output shaft of the motor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, through the setting of the rotating tube, the upper and lower ends of the tower plate are fixedly connected with the rotating tube on both sides of the rotating tube, the lower end of the rotating tube is fixedly connected with a scraper, and one side of the rotating tube is fixedly connected with a plurality of flat-mouth nozzles. The water injection pipe injects water into the rotating tube through the rotating tube joint, and the rotating tube is driven by the rotating tube to rotate while conveying flushing water into the rotating tube. The flushing water is sprayed to the upper and lower end surfaces of the tower plate through the flat-mouth nozzle for flushing. At the same time, the scraper is driven by the rotating tube to scrape the upper and lower end surfaces of the tower plate respectively, and impurities on the upper and lower end surfaces of the tower plate are removed. The flushing sewage falls through the liquid drop hole and is discharged through the liquid discharge pipe, so as to realize the cleaning of the upper and lower end surfaces of the tower plate.

[0015] 2. In the utility model, through the setting of the rotating pipe joint, the lower end of the water injection pipe extends to the inside of the distillation tower and is fixedly connected with the rotating pipe joint, and the upper end of the rotating tube is fixedly connected to the lower end of the rotating pipe joint, so that the water injection pipe can inject water into the rotating tube through the rotating pipe joint and the rotating tube can be rotated through the rotating pipe joint.

[0016] 3. In the utility model, through the setting of the rotating shaft, the lower end of the rotating tube extends out of the lower end of the lowest tower plate and is fixedly connected with the rotating shaft, the other end of the transmission shaft extends to the inside of the motor box and is fixedly connected with the motor output shaft, the transmission shaft is rotated by the motor, the first conical tooth on the rotating shaft is meshed with the second conical tooth on the transmission shaft, the transmission shaft is rotated by the rotating shaft, and the transmission shaft is driven to rotate, thereby realizing that the transmission shaft drives the rotating tube to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a distillation tower for dinitolamide reaction of the utility model;

[0018] Figure 2 It is the main sectional view of the utility model;

[0019] Figure 3 It is a side sectional view of the rotary tube of the utility model;

[0020] Figure 4 It is an enlarged view of the detail A of the utility model;

[0021] Figure 5 It is an enlarged view of detail B of the present utility model.

[0022] In the figure: 1. distillation tower; 101. gas input pipe; 102. raw liquid input pipe; 103. reflux liquid input pipe; 104. gas discharge pipe; 105. water injection pipe; 106. rotating pipe joint; 107. liquid discharge pipe; 2. tower plate; 201. liquid drop hole; 202. circular limit groove; 3. rotating pipe; 301. annular connector; 302. annular limit groove; 303. rotating shaft; 304. first conical tooth; 4. rotating pipe; 401. scraper; 402. flat nozzle; 5. transmission box; 501. fixed pipe; 502. transmission shaft; 503. second conical tooth; 6. motor box; 601. motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-5 The utility model provides an embodiment: a distillation tower for dinitramide reaction, comprising a distillation tower 1, a gas input pipe 101 is arranged at the lower end of one side of the distillation tower 1, a raw liquid input pipe 102 is arranged in the middle of one side of the distillation tower 1, a reflux liquid input pipe 103 is arranged at the upper end of the other side of the distillation tower 1, a gas discharge pipe 104 is arranged at one side of the middle of the upper end of the distillation tower 1, a water injection pipe 105 is arranged at the middle of the upper end of the distillation tower 1, and a liquid discharge pipe 107 is arranged in the middle of the lower end of the distillation tower 1. 1 is fixedly connected with a plurality of tower plates 2 inside, a plurality of liquid drop holes 201 are arranged on the tower plates 2, a rotating tube 3 is rotatably connected to the middle of the plurality of liquid drop holes 201, a ring connecting piece 301 is fixedly connected to the connection between the rotating tube 3 and each tower plate 2, a rotating tube 4 is fixedly connected to the upper and lower ends of the tower plates 2 on both sides of the rotating tube 3, a scraper 401 is fixedly connected to the lower end of the rotating tube 4, a plurality of flat nozzles 402 are fixedly connected to one side of the rotating tube 4, and a transmission box 5 is arranged at the middle of the lower end of the lowest tower plate 2.

[0025] Furthermore, an annular limiting groove 302 is provided on the side end surface of the annular connecting member 301, and the circular hole edge of the tower plate 2 is inserted into the annular limiting groove 302. The rotating tube 3 is supported by multiple annular connecting members 301 so that the rotating tube 3 can rotate.

[0026] Furthermore, the lower end of the water injection pipe 105 extends to the interior of the distillation tower 1 and is fixedly connected to a rotating pipe joint 106. The upper end of the rotating tube 3 is fixedly connected to the lower end of the rotating pipe joint 106. The water injection pipe 105 injects water into the rotating tube 3 through the rotating pipe joint 106. At the same time, the rotating pipe joint 106 allows the rotating tube 3 to rotate. The rotating tube 3 drives the rotating tube 4 to rotate while transporting flushing water to the inside of the rotating tube 4. The flushing water is sprayed to the upper and lower end surfaces of the tower plate 2 through the flat-mouth nozzle 402 for flushing. At the same time, the scraper 401 is driven by the rotating tube 4 to scrape the upper and lower end surfaces of the tower plate 2 respectively, and impurities on the upper and lower end surfaces of the tower plate 2 are removed. The flushing sewage falls through the drop hole 201 and is discharged through the liquid discharge pipe 107.

[0027] Furthermore, the transmission box 5 is fixedly connected to the inner end face of the distillation tower 1 through a support rod, the lower end of the rotating tube 3 extends out of the lower end of the lowest tower plate 2 and is fixedly connected to a rotating shaft 303, and the lower end of the rotating shaft 303 extends to the inside of the transmission box 5 and is fixedly connected to a first conical tooth 304.

[0028] Furthermore, a fixed tube 501 is fixedly connected to one side of the transmission box 5 , a transmission shaft 502 is arranged inside the fixed tube 501 , and one end of the transmission shaft 502 extends into the transmission box 5 and is fixedly connected to a second conical tooth 503 .

[0029] Furthermore, the first conical teeth 304 on the rotating shaft 303 are meshedly connected with the teeth of the second conical teeth 503 on the transmission shaft 502 , and the transmission shaft 502 is driven to rotate by the rotating shaft 303 , thereby causing the transmission shaft 502 to drive the rotating tube 3 to rotate.

[0030] Furthermore, a motor box 6 is fixedly connected to the lower end of one side of the distillation tower 1, and a motor 601 is arranged inside the motor box 6. The other end of the transmission shaft 502 extends into the motor box 6 and is fixedly connected to the output shaft of the motor 601, and the transmission shaft 502 is driven to rotate by the motor 601.

[0031] Working principle: When in use, heaters are provided on the gas input pipe 101 and the liquid discharge pipe 107. The raw material enters the upper end of the middle tower plate 2 through the raw material liquid input pipe 102 and overflows to the bottom of the distillation tower 1. The liquid entering the liquid discharge pipe 107 is heated to boiling by the heater to provide rising steam. At the same time, part of the material is discharged as a product. The rising steam re-enters the bottom of the distillation tower 1 through the gas input pipe 101, and the steam continues to rise through the liquid drop hole 201 on the tower plate 2. The liquid phase on the tower plate 2 contacts and mixes with the gas phase to transfer heat and mass. The steam rising to the top of the distillation tower 1 is discharged through the gas discharge pipe 104. At the same time, the liquid condensed through the gas discharge pipe re-enters the upper end of the upper tower plate 2 of the distillation tower 1 through the reflux liquid input pipe 103 to overflow. When the impurities on the tower plate 2 When there is too much mass, the transmission shaft 502 is driven to rotate by the motor 601, and the rotating shaft 303 drives the transmission shaft 502 to rotate, so that the transmission shaft 502 drives the rotating tube 3 to rotate, and the water injection pipe 105 injects water into the rotating tube 3 through the rotating pipe joint 106. At the same time, the rotating pipe joint 106 allows the rotating tube 3 to rotate, and the rotating tube 4 is driven by the rotating tube 3 to rotate while conveying flushing water to the inside of the rotating tube 4. The flushing water is sprayed to the upper and lower end surfaces of the tower plate 2 through the flat nozzle 402 for flushing. At the same time, the scraper 401 is driven by the rotating tube 4 to scrape the upper and lower end surfaces of the tower plate 2 respectively, and the impurities on the upper and lower end surfaces of the tower plate 2 are removed. The flushing sewage falls through the drop hole 201 and is discharged through the liquid discharge pipe 107, so as to achieve the cleaning of the upper and lower end surfaces of the tower plate 2.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A distillation tower for dinitolmide reaction, comprising a distillation tower (1), characterized in that: A gas inlet pipe (101) is provided at the lower end of one side of the distillation tower (1), a raw liquid inlet pipe (102) is provided at the middle of one side of the distillation tower (1), a reflux liquid inlet pipe (103) is provided at the upper end of the other side of the distillation tower (1), a gas outlet pipe (104) is provided at one side of the middle of the upper end of the distillation tower (1), a water injection pipe (105) is provided at the middle of the upper end of the distillation tower (1), and a liquid outlet pipe (107) is provided at the middle of the lower end of the distillation tower (1). A plurality of trays (2) are fixedly connected inside the distillation tower (1), and the trays (2 ) is provided with a plurality of liquid drop holes (201), the middle parts of the plurality of liquid drop holes (201) are connected to a rotating tube (3) in a common rotation manner, the rotating tube (3) is fixedly connected to a ring-shaped connecting piece (301) at the connection point with each tower plate (2), the upper and lower ends of the tower plate (2) are fixedly connected to rotating tubes (4) on both sides of the rotating tube (3), the lower end of the rotating tube (4) is fixedly connected to a scraper (401), one side of the rotating tube (4) is fixedly connected to a plurality of flat nozzles (402), and a transmission box (5) is provided in the middle part of the lower end of the tower plate (2) at the bottom layer.

2. A distillation tower for dinitolamide reaction according to claim 1, characterized in that: The side end surface of the annular connecting piece (301) is provided with an annular limiting groove (302), and the edge of the circular hole of the tower plate (2) is inserted into the annular limiting groove (302).

3. A distillation tower for dinitolamide reaction according to claim 1, characterized in that: The lower end of the water injection pipe (105) extends into the interior of the distillation tower (1) and is fixedly connected to a rotating pipe joint (106); the upper end of the rotating pipe (3) is fixedly connected to the lower end of the rotating pipe joint (106).

4. A distillation tower for dinitolamide reaction according to claim 1, characterized in that: The transmission box (5) is fixedly connected to the inner end surface of the distillation tower (1) via a support rod; the lower end of the rotating tube (3) extends out of the lower end of the bottommost tower plate (2) and is fixedly connected to a rotating shaft (303); the lower end of the rotating shaft (303) extends into the transmission box (5) and is fixedly connected to a first conical tooth (304).

5. A distillation tower for dinitolamide reaction according to claim 4, characterized in that: A fixed tube (501) is fixedly connected to one side of the transmission box (5), a transmission shaft (502) is arranged inside the fixed tube (501), and one end of the transmission shaft (502) extends into the transmission box (5) and is fixedly connected to a second conical tooth (503).

6. A distillation tower for dinitolamide reaction according to claim 5, characterized in that: The first conical teeth (304) on the rotating shaft (303) are meshedly connected with the teeth of the second conical teeth (503) on the transmission shaft (502).

7. A distillation tower for dinitolamide reaction according to claim 6, characterized in that: A motor box (6) is fixedly connected to the lower end of one side of the distillation tower (1), a motor (601) is arranged inside the motor box (6), and the other end of the transmission shaft (502) extends into the motor box (6) and is fixedly connected to the output shaft of the motor (601).

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