Multi-stage rectifying tower for chemical raw materials

Abstract

The utility model relates to the technical field of rectifying towers, and discloses a chemical raw material multistage rectifying tower which comprises a tower body serving as a main body, a bottom plate is fixedly connected to the lower end of the inner wall of the tower body, a heating assembly is arranged in the lower end of the tower body, and a first discharging pipe is fixedly connected to the middle of the lower side of the bottom plate. The lower end of the first discharging pipe penetrates through the bottom of the tower body, the upper end of the inner wall of the tower body is fixedly connected with a gathering hopper used for gathering gas and used for transferring gas heat to external raw materials, and the inner wall of the tower body is fixedly connected with a flow guide ring corresponding to the lower portion of the gathering hopper. According to the utility model, the gathering hopper can transfer heat of gas generated by rectification to raw materials stored on the outer side, preheat the raw materials and utilize the heat in the gas, so that heat waste is avoided, energy is saved, the transmission rod drives the stirring rod to rotate, and the rotating stirring rod can stir the raw materials at the bottom of the tower body, so that the raw materials are uniformly heated; the rectification efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rectifying tower technical field especially relates to a chemical raw material multistage rectifying tower. BACKGROUND

[0002] Rectifying tower is a tower type gas liquid contact device for rectification, utilizes the different volatility of each component in mixture, namely the vapor pressure of each component is different at the same temperature, makes the light component in liquid phase transfer to gas phase, and the heavy component in gas phase transfers to liquid phase, thereby realizes the purpose of separation.

[0003] Through the retrieval, the multistage rectifying tower for chemical raw material production of announcement number CN217939172U, including the fixed frame, the fixed frame's outside fixed connection has the reaction kettle, the reaction kettle's outside fixed connection has the feed pipe, the reaction kettle's inside fixed connection has the baffle one, the baffle one's outside fixed connection has the curved steam heating pipe;Through the curved steam heating pipe and the complete uniform contact of the chemical raw material in the reaction kettle heat receiving, improve the efficiency of the chemical raw material fractionation single substance, simultaneously, the gas pump operation makes the pressure difference generated in the collecting cover, and the gaseous single substance of chemical raw material fractionation is quickly inhaled by the collecting cover and is transported through the conveying pipe, so that the fractionation gaseous single substance is quickly collected and transported, effectively prevent the fractionation gaseous single substance cooling and adhering to the inner wall of conveying pipe increase fractionation gaseous single substance transport resistance, improve the output and practicality of chemical raw material rectifying tower;

[0004] Based on the above patent, the chemical raw material in the reaction kettle is rectified by the curved steam heating pipe, but the chemical raw material cannot be heated sufficiently, and the heating is uneven, thereby affecting the rectification efficiency. Utility model content

[0005] The utility model discloses a chemical raw material multistage rectifying tower can improve the efficiency of raw material rectification through stirring and make the heat of vaporization recycling.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model relates to a chemical raw material multistage rectifying column, including as the main body tower body, the inner wall lower extreme fixed connection of tower body has the bottom plate, the inside of tower body lower extreme is provided with heating assembly, the downside middle part of bottom plate is fixedly connected with first discharge pipe, the lower extreme of first discharge pipe penetrates the bottom of tower body, the upper fixed connection of inner wall of tower body has the gathering bucket for gathering gas, is used for the raw material of outside heat transfer of gas heat, the fixed connection of inner wall of tower body below gathering bucket has the flow guide ring, the front side fixed connection of tower body has the second discharge pipe for discharging liquefied raw material, the top fixed connection of gathering bucket has the pipe body, the outside fixed connection of pipe body has the baffle, the outside fixed connection of baffle in the inner wall top of tower body, the middle part rotationally connected of pipe body has the transmission rod, the upper end left and right sides of transmission rod are all fixedly connected with the scraper, the outside of scraper is close to the inner wall of gathering bucket, the lower end left and right sides of transmission rod are fixedly connected with the stirring rod for stirring raw material, the top of pipe body is provided with drive structure.

[0008] Further, the drive structure includes a motor fixedly connected to the top of the pipe body, a driving end of the motor is fixedly connected to the top of the transmission rod, and a protective cover is fixedly connected to the outside of the top of the pipe body for protecting the motor.

[0009] Further, the pipe body is fixedly connected with an air outlet pipe at the right side of the upper end of the pipe body, and a conveying pump is installed on the outside of the air outlet pipe.

[0010] Further, the heating assembly includes a control box fixedly connected to the right side of the lower end of the tower body, and the heating assembly further includes a heating pipe in the inside of the lower end of the tower body, and the end of the heating pipe penetrates the tower body and is fixedly connected to the inside of the control box.

[0011] Further, the tower body is fixedly connected with a U-shaped pipe at the left side of the tower body, the upper end of the U-shaped pipe is communicated with the upper end storage cavity of the tower body, the lower end of the U-shaped pipe is communicated with the lower end of the tower body, and a valve is installed on the middle part of the U-shaped pipe.

[0012] Further, a first feeding pipe is installed on the left side of the upper end of the tower body, and a second feeding pipe is installed on the right side of the middle part of the tower body.

[0013] Further, a fixing ring is fixedly connected to the outside of the lower end of the tower body, a plurality of connecting rods are fixedly connected to the lower side of the fixing ring, and the lower ends of the connecting rods are fixedly connected with a grommet.

[0014] The utility model has the following beneficial effects:

[0015] 1、 in the utility model, the heat of the gas generated by rectification is transmitted to the raw material stored outside through the setting gathering bucket, the raw material is preheated, the heat in the gas is utilized, so as to avoid heat waste and save energy.

[0016] 2、 the utility model discloses, through the motor that sets up can drive transmission rod rotation, the transmission rod of rotation drives the blade rotation, can gather the liquid that condenses in the inside of the gathering hopper and clean, along the inner wall of gathering hopper and flow down, gather through the flow guide ring, discharge through the second discharge pipe, and the transmission rod drives the stirring rod rotation, and the stirring rod of rotation can gather the raw material at the bottom of tower body and stir, make it heat evenly, improve the efficiency of rectification. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole schematic view of chemical material multistage rectifying tower that the utility model proposes;

[0018] Figure 2 It is a section schematic view of chemical material multistage rectifying tower that the utility model proposes;

[0019] Figure 3 It is a blade schematic view of chemical material multistage rectifying tower that the utility model proposes.

[0020] LEGEND:

[0021] 1, tower body;2, bottom plate;3, first discharge pipe;4, gathering hopper;5, flow guide ring;6, second discharge pipe;7, baffle;8, pipe body;9, gas outlet pipe;10, delivery pump;11, transmission rod;12, scraper;13, stirring rod;14, motor;15, protective cover;16, control box;17, heating pipe;18, first feeding pipe;19, second feeding pipe;20, U-shaped pipe;21, valve;22, fixed ring;23, connecting rod;24, grommet. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] REFERENCE Figure 1 - Figure 3This utility model provides an embodiment of a multi-stage distillation column for chemical raw materials, comprising a column body 1 as the main body, a bottom plate 2 fixedly connected to the lower end of the inner wall of the column body 1, a first discharge pipe 3 fixedly connected to the lower middle part of the bottom plate 2, the lower end of the first discharge pipe 3 penetrating the bottom of the column body 1, a gathering hopper 4 fixedly connected to the upper end of the inner wall of the column body 1 for collecting gas and transferring the heat of the gas to the external raw materials, a guide ring 5 fixedly connected to the lower part of the inner wall of the column body 1 corresponding to the gathering hopper 4, a second discharge pipe 6 fixedly connected to the front side of the column body 1 for discharging liquefied raw materials, a pipe body 8 fixedly connected to the top of the gathering hopper 4, and a partition 7 fixedly connected to the outside of the pipe body 8, the outer side of the partition 7... A side-fixed connection is made to the top of the inner wall of the tower body 1. An air outlet pipe 9 is fixedly connected to the upper right side of the pipe body 8. A conveying pump 10 is installed outside the air outlet pipe 9. A U-shaped pipe 20 is fixedly connected to the left side of the tower body 1. The upper end of the U-shaped pipe 20 is connected to the upper storage cavity of the tower body 1, and the lower end of the U-shaped pipe 20 is connected to the lower end of the tower body 1. A valve 21 is installed in the middle of the U-shaped pipe 20. A first feeding pipe 18 is installed at the upper left side of the tower body 1. A second feeding pipe 19 is installed in the middle right side of the tower body 1. A control box 16 is fixedly connected to the lower right side of the tower body 1. A heating pipe 17 is installed inside the lower end of the tower body 1. The end of the heating pipe 17 passes through the tower body 1 and is fixedly connected inside the control box 16.

[0024] The set-up gathering hopper 4, pipe body 8, and baffle 7 can form a wall for storing raw materials at the upper end of the tower body 1. Raw materials are injected into the cavity through the set-up first feeding pipe 18 and into the lower end of the tower body 1 through the set-up second feeding pipe 19. The raw materials stored at the lower end of the tower body 1 are heated to evaporate and vaporize their components. The set-up delivery pump 10 creates a negative pressure inside the gas outlet pipe 9, which drives the vaporized components to move upward. The upward-moving gas comes into contact with the gathering hopper 4, and the gathering hopper 4 transfers the heat in the gas to the raw materials at the upper end of the tower body 1 for preheating. Part of the gas liquefies and flows downward along the inner wall of the gathering hopper 4. The liquefied raw materials are gathered through the guide ring 5 and discharged from the second discharge pipe 6 at the front end of the tower body 1. The set-up U-shaped pipe 20 can inject the preheated raw materials at the upper end into the lower end of the tower body 1 for subsequent distillation. The preheated raw materials reduce the energy lock in the distillation, thereby saving energy and improving the efficiency of subsequent distillation.

[0025] Reference Figure 2 - Figure 3The middle part of the pipe body 8 is rotationally connected with a transmission rod 11, the upper ends of the left and right sides of the transmission rod 11 are fixedly connected with scrapers 12, the outer sides of the scrapers 12 are in close contact with the inner wall of the collecting hopper 4, the lower ends of the left and right sides of the transmission rod 11 are fixedly connected with stirring rods 13 for stirring the raw materials, the top of the pipe body 8 is fixedly connected with a motor 14, the driving end of the motor 14 is fixedly connected at the top of the transmission rod 11, the outer side of the top of the pipe body 8 is fixedly connected with a protective cover 15 for protecting the motor 14,

[0026] The motor 14 drives the transmission rod 11 to rotate, the rotating transmission rod 11 drives the scrapers 12 to rotate, the rotating scrapers 12 can clean the raw materials attached to the inner wall of the collecting hopper 4, promote the downward flow of the liquid, and facilitate the discharge, the transmission rod 11 can drive the stirring rods 13 to rotate, the rotating stirring rods 13 can stir the raw materials at the lower end of the tower body 1, promote the flow of the raw materials, make the raw materials evenly heated, and promote the rectification of the raw materials.

[0027] Referring to Figure 1 The lower side of the fixed ring 22 is fixedly connected with a plurality of connecting rods 23, and the lower ends of the connecting rods 23 are fixedly connected with a grommet 24.

[0028] The fixed ring 22, the connecting rods 23 and the grommet 24 are arranged to support the device and keep the device stable during operation.

[0029] Working principle: raw materials are injected into the upper end and the lower end of the tower body 1 through the first feeding pipe 18 and the second feeding pipe 19 respectively, the heating pipe 17 is controlled by the control box 16 to heat the raw materials at the lower end of the tower body 1 for rectification, the raw materials are heated and vaporized, the vaporized raw materials move upward and contact the collecting hopper 4, the collecting hopper 4 transmits heat in the gas to the raw materials stored at the upper end of the tower body 1, part of the gas is liquefied and attached to the inner wall of the collecting hopper 4 and flows downward along the inner wall of the collecting hopper 4, is collected by the flow guide ring 5 and discharged through the second discharge pipe 6, the unliquefied gas moves upward and is discharged through the gas outlet pipe 9, the conveying pump 10 is arranged to drive the gas to be discharged, the motor 14 is started to drive the transmission rod 11 to rotate, the rotating transmission rod 11 drives the scrapers 12 to rotate, the rotating scrapers 12 are used to clean the liquid attached to the inner wall of the collecting hopper 4, promote the discharge of the liquid, the transmission rod 11 drives the stirring rods 13 to rotate, the rotating stirring rods 13 are used to drive the raw materials at the lower end of the tower body 1 to flow, make the raw materials evenly heated, the valve 21 is opened, the raw materials stored at the upper end of the tower body 1 can flow into the lower end of the tower body 1 through the U-shaped pipe 20, for rectification, the power of the heating pipe 17 is controlled by the control box 16, for heating the raw materials to different temperatures, for fractional distillation of different components, for fractional rectification.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A multi-stage chemical feedstock rectification column, characterized by, The utility model relates to a tower body (1) as the main body, the inner wall lower end of tower body (1) is fixedly connected with bottom plate (2), the lower end inside of tower body (1) is provided with heating assembly, the downside middle part of bottom plate (2) is fixedly connected with first discharge pipe (3), the lower end of first discharge pipe (3) penetrates the bottom of tower body (1), the inner wall upper end of tower body (1) is fixedly connected with the gathering hopper (4) for gathering gas, for the raw material of gas heat transfer to outside, the lower side of the inner wall of tower body (1) is fixedly connected with the flow guide ring (5) corresponding gathering hopper (4), the front side of tower body (1) is fixedly connected with the second discharge pipe (6) for discharging liquefied raw material, the top of gathering hopper (4) is fixedly connected with the pipe body (8), the outside of pipe body (8) is fixedly connected with the baffle (7), the outside of baffle (7) is fixedly connected in the inner wall top of tower body (1), the middle part of pipe body (8) is rotatably connected with transmission rod (11), the upper end left and right sides of transmission rod (11) are fixedly connected with scraper (12), the outside of scraper (12) is tightly attached to the inner wall of gathering hopper (4), the lower end left and right sides of transmission rod (11) are fixedly connected with the stirring rod (13) for stirring raw material, the top of pipe body (8) is provided with drive structure.

2. The multi-stage chemical feedstock rectifying column according to claim 1, characterized in that: The drive structure includes a motor (14) fixedly connected to the top of the pipe body (8), the drive end of the motor (14) is fixedly connected to the top of the transmission rod (11), and a protective cover (15) is fixedly connected to the outside of the top of the pipe body (8) for protecting the motor (14).

3. The multi-stage chemical feedstock rectifying column of claim 2, wherein: The right side of the upper end of the pipe body (8) is fixedly connected with an air outlet pipe (9), and the outside of the air outlet pipe (9) is provided with a delivery pump (10).

4. The multi-stage chemical feedstock rectifying column of claim 1, wherein: The heating assembly includes a control box (16) fixedly connected to the lower end of the right side of the tower body (1), and further includes a heating pipe (17) inside the lower end of the tower body (1), and the end of the heating pipe (17) penetrates the tower body (1) and is fixedly connected to the inside of the control box (16).

5. The multi-stage chemical feedstock rectifying column of claim 1, wherein: The left side of the tower body (1) is fixedly connected with a U-shaped pipe (20), the upper end of the U-shaped pipe (20) is in communication with the upper end storage cavity of the tower body (1), the lower end of the U-shaped pipe (20) is in communication with the lower end of the tower body (1), and the middle part of the U-shaped pipe (20) is provided with a valve (21).

6. The multi-stage chemical feedstock rectifying column of claim 1, wherein: The left side of the tower body (1) is provided with a first feeding pipe (18), and the right side of the tower body (1) is provided with a second feeding pipe (19).

7. The multi-stage chemical feedstock rectifying column of claim 1, wherein: The lower end of the tower body (1) is fixedly connected with a fixing ring (22), the lower side of the fixing ring (22) is fixedly connected with a plurality of connecting rods (23), and the lower end of the connecting rod (23) is fixedly connected with a grommet (24).

Images