Distillation tower for chemical production

Abstract

The utility model relates to the technical field of chemical production, in particular to a distillation tower for chemical production. The distillation tower comprises a tower outer cylinder, a heater, a discharge valve, a feed pipe, a condenser and the like, the heater is mounted at the lower part in the tower outer cylinder, the discharge valve is communicated with the side wall of the lower part of the tower outer cylinder, the feed pipe is communicated with the upper part of the tower outer cylinder, the heat-insulating inner shell is connected with a separation cylinder, and the top of the tower outer cylinder is connected with the condenser; a motor is further installed on the upper portion of the tower outer barrel, an output shaft of the motor is connected with a rotating shaft, the rotating shaft stretches into the separation barrel, the middle of the rotating shaft is sleeved with a sieve tray in a sliding mode, and a wave groove is formed in the lower end face of the sieve tray. According to the utility model, the motor is started to rotate to drive the rotating shaft to rotate so as to drive the sieve tray to rotate, and the sieve tray can slide up and down under the extrusion action of the wave groove at the lower end of the sieve tray and the push rod and the action of the limiting rod, so that solid-containing raw materials above the sieve tray can be shaken to be scattered and sieved, and the tower tray is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to a distillation tower for chemical production. Background Art

[0002] The distillation tower is an indispensable key equipment in the fields of chemical and petrochemical industries. It is mainly used to efficiently separate the components in the mixed liquid according to their different boiling points. It uses the principle of heating evaporation and condensation to heat the raw liquid to boiling, and the components with different boiling points are successively converted into steam, and then the steam is condensed back to liquid state, so as to realize the collection of pure components. The distillation tower is usually composed of the tower outer cylinder, tower tray (or packing), heating system, condensation system and control system. Its design needs to consider many factors such as thermal efficiency, separation efficiency and operational stability.

[0003] Existing distillation towers still have some problems when processing raw materials containing solid particles, especially those containing a large amount of solid fibers or sediments, such as cellulosic ethanol fermentation broth or some crude oil containing solid impurities. During the distillation process, solid particles are easily deposited on the trays or between the packings, resulting in obstruction of the fluid flow path, affecting the mass transfer efficiency, and even causing equipment blockage. Therefore, for the distillation treatment of solid raw materials, there is an urgent need for a new distillation tower design or improved tower internals that can effectively avoid solid aggregation and promote uniform distribution of materials, so as to reduce the risk of blockage and improve processing capacity and separation efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of existing distillation towers that, when processing raw materials containing solid particles, solid particles are easily deposited on tower plates or between fillers during the distillation process, resulting in obstruction of the fluid flow path, affecting mass transfer efficiency, and even causing equipment blockage, the utility model provides a distillation tower for chemical production.

[0005] The technical solution is: a distillation tower for chemical production, including a base, a tower outer tube, a heater, a discharge valve, a feed pipe, a separation tube, a condenser, a condenser, the base is connected to the tower outer tube, the lower part of the tower outer tube is equipped with a heater, the lower side wall of the tower outer tube is connected to the discharge valve, the upper part of the tower outer tube is connected to the feed pipe, the inner wall of the tower outer tube is connected to the separation tube in an interval manner, the top of the tower outer tube is connected to the condenser, the lower end of the wind ball is equipped with a condenser, and also includes a motor, a rotating shaft, a sieve plate, a limit rod, a wave groove and a push rod. The motor is installed on the upper part of the tower outer tube, the output shaft of the motor is connected to the rotating shaft, the rotating shaft extends into the separation tube and is slidably sleeved with a sieve plate in the middle of the shaft, the inner side wall of the separation tube is evenly equipped with limit rods, the side wall of the sieve plate is slidably connected to the limit rod, the lower end surface of the sieve plate is provided with a wave groove, and a push rod that is squeezed and matched with the wave groove is connected below the sieve plate.

[0006] As a further preferred embodiment, the distillation tower further comprises a heat-insulating inner shell, and the inner wall of the tower outer cylinder is connected to the heat-insulating inner shell.

[0007] As a further preferred embodiment, the distillation tower further comprises a stirring blade, and the lower end of the rotating shaft is connected with the stirring blade.

[0008] As a further preferred embodiment, the distillation tower further comprises a liquid level pipe, and the lower outer wall of the tower outer cylinder is connected to the liquid level pipe.

[0009] As a further preferred embodiment, the distillation tower further comprises a climbing frame, and the climbing frame is installed on the outer wall of the outer cylinder of the tower.

[0010] As a further preferred embodiment, the distillation tower further comprises a canopy, and the canopy is installed on the top of the tower outer cylinder.

[0011] The beneficial effect of the utility model is as follows: the utility model drives the rotating shaft to rotate by starting the motor, and then drives the sieve plate to rotate; due to the squeezing effect of the wave groove at the lower end of the sieve plate and the push rod and the action of the limit rod, the sieve plate will slide up and down, and thus the solid raw materials above the sieve plate can be shaken and screened, thereby preventing the tower plate from being blocked; the raw materials fall into the bottom of the outer cylinder of the tower through the discharge port at the lower end of the separation cylinder, and the heater is turned on to distill the raw materials; due to the action of the separation cylinder, part of the steam can be guided to rise from the outside of the separation cylinder to the condenser at the top of the tower to realize condensation recovery, thereby improving the steam recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the positions of the motor, limit rod, stirring blade and other components of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the heat-insulating inner shell, sieve plate, and separation cylinder of the utility model;

[0015] Figure 4 It is a schematic diagram of the connection between the wave trough, the push rod and the sieve plate of the utility model.

[0016] Among them: 1 base, 2-tower outer tube, 3-heater, 4-discharge valve, 5-feed pipe, 6-partition tube, 7-condenser, 8-condenser, 9-motor, 10-rotating shaft, 11-sieve plate, 110-limit rod, 12-wave groove, 13-push rod, 14-insulation inner shell, 15-stirring blade, 16-liquid level tube, 17-climbing frame, 18-canopy, 19-liquid outlet pipe. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0018] Example 1: A distillation tower for chemical production, such as Figure 1-Figure 4 As shown, it includes a base 1, a tower outer tube 2, a heater 3, a discharge valve 4, a feed pipe 5, a partition tube 6, a condenser 7, a condensation tube 8, the base 1 is connected to the tower outer tube 2, the lower part of the tower outer tube 2 is equipped with a heater 3, the lower side wall of the tower outer tube 2 is connected to the discharge valve 4, the upper part of the tower outer tube 2 is connected to the feed pipe 5, the inner wall of the tower outer tube 2 is connected to the partition tube 6 in a spaced manner, the top of the tower outer tube 2 is connected to the condenser 7, the lower end of the wind ball is equipped with a condensation tube 8, and also includes a motor 9, a rotating shaft 10, a sieve plate 11, a limit rod 110, a wave groove 12 A motor 9 is installed on the upper part of the tower outer cylinder 2, and the output shaft of the motor 9 is connected to a rotating shaft 10. The rotating shaft 10 extends into the separation cylinder 6 and is slidably sleeved with a sieve plate 11 in the middle of the shaft. Limit rods 110 are evenly installed on the inner wall of the separation cylinder 6. The side wall of the sieve plate 11 is slidably connected to the limit rod 110. A wave groove 12 is opened on the lower end surface of the sieve plate 11, and a push rod 13 that is squeezed and matched with the wave groove 12 is connected to the lower part of the sieve plate 11. When the distillation tower is in use, the raw material is first passed into the separation cylinder 6 from the feed pipe 5, and the raw material first falls on the sieve plate 11. When the electric When the machine 9 rotates, it will drive the rotating shaft 10 to rotate, and then drive the sieve plate 11 to rotate. Due to the squeezing effect of the wave groove 12 and the push rod 13 at the lower end of the sieve plate 11, and under the action of the limit rod 110, the sieve plate 11 will slide up and down, thereby shaking and screening the solid raw materials above the sieve plate 11, and then the raw materials will fall into the bottom of the tower outer tube 2 through the discharge port at the lower end of the separation tube 6. The heater 3 is turned on to distill the raw materials. Due to the action of the separation tube 6, part of the steam can be guided to rise from the outside of the separation tube 6 to the condenser 7 at the top of the tower. Now condense and recover; the distillation tower also includes a climbing frame 17, and the outer wall of the tower outer tube 2 is equipped with a climbing frame 17; installing the climbing frame 17 is convenient for maintenance personnel to add materials, and at the same time it is convenient to overhaul the facilities on each layer of the distillation tower; the distillation tower also includes a canopy 18, and the top of the tower outer tube 2 is equipped with a canopy 18; installing the canopy can play a role in rain and sun protection; the distillation tower also includes a liquid level pipe 16, and the lower outer wall of the tower outer tube 2 is connected to the liquid level pipe 16; the liquid level pipe 16 can accurately see the depth of the raw material in the tower outer tube 2, so as to grasp the distillation process in real time.

[0019] Embodiment 2: Based on embodiment 1, Figure 2As shown, the distillation tower also includes a stirring blade 15, and the stirring blade 15 is connected to the lower end of the rotating shaft 10; when the motor 9 rotates, it will drive the rotating shaft 10 and the stirring blade 15 to rotate, so as to stir the raw material or the original liquid and promote the evaporation of the components therein.

[0020] like Figure 3 As shown, the distillation tower also includes a heat-insulating inner shell 14 , and the inner wall of the tower outer tube 2 is connected with the heat-insulating inner shell 14 ; the heat-insulating inner shell 14 can reduce the temperature inside the tower outer tube 2 .

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A distillation tower for chemical production, comprising a base (1), a tower outer tube (2), a heater (3), a discharge valve (4), a feed pipe (5), a condenser (7), and a condensation pipe (8), wherein the tower outer tube (2) is connected to the base (1), a heater (3) is installed in the lower part of the tower outer tube (2), a discharge valve (4) is connected to the lower side wall of the tower outer tube (2), a feed pipe (5) is connected to the upper part of the tower outer tube (2), a condenser (7) is connected to the top of the tower outer tube (2), and a condensation pipe (8) is installed at the lower end of the wind ball, characterized in that: It also includes a separation cylinder (6), a motor (9), a rotating shaft (10), a sieve plate (11), a wave groove (12) and a push rod (13). The inner wall of the tower outer cylinder (2) is connected to the separation cylinder (6) in a spaced manner. The upper part of the tower outer cylinder (2) is installed with a motor (9). The output shaft of the motor (9) is connected to the rotating shaft (10). The rotating shaft (10) extends into the separation cylinder (6) and is slidably sleeved with the sieve plate (11) in the middle of the shaft. Limiting rods (110) are evenly installed on the inner side wall of the separation cylinder (6). The side wall of the sieve plate (11) is slidably connected to the limiting rod (110). The lower end surface of the sieve plate (11) is provided with a wave groove (12). The lower part of the sieve plate (11) is connected with a push rod (13) which is squeezed and matched with the wave groove (12).

2. A distillation tower for chemical production as claimed in claim 1, characterized in that: The distillation tower also includes a heat-insulating inner shell (14), and the inner wall of the tower outer cylinder (2) is connected to the heat-insulating inner shell (14).

3. A distillation tower for chemical production as claimed in claim 2, characterized in that: The distillation tower also includes a stirring blade (15), and the lower end of the rotating shaft (10) is connected to the stirring blade (15).

4. A distillation tower for chemical production as claimed in claim 3, characterized in that: The distillation tower also includes a liquid level pipe (16), and the lower outer wall of the tower outer cylinder (2) is connected to the liquid level pipe (16).

5. A distillation tower for chemical production as claimed in claim 4, characterized in that: The distillation tower also includes a climbing frame (17), and the climbing frame (17) is installed on the outer wall of the tower outer cylinder (2).

6. A distillation tower for chemical production as claimed in claim 5, characterized in that: The distillation tower also includes a canopy (18), and the top of the tower outer cylinder (2) is equipped with the canopy (18).

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