Multi-stage rectifying tower

Abstract

The utility model relates to the technical field of waste organic solvent purification, in particular to a multistage rectifying tower which comprises a barrel body, a stirring mechanism is arranged in the barrel body, an extrusion mechanism is arranged in the barrel body, a base is fixed on the outer wall of the barrel body in a penetrating mode, and a feeding pipe communicated with the interior of the barrel body is fixed at the top end of the outer wall of the barrel body in a penetrating mode. An air outlet pipe communicated with the interior of the barrel body is fixed to the top surface of the barrel body in a penetrating mode, a discharging pipe communicated with the interior of the barrel body is fixed to the bottom surface of the barrel body in a penetrating mode, the stirring mechanism comprises a rotating stirring shaft located between the inner bottom surface and the inner top surface of the barrel body, and a plurality of stirring blades are fixed to the outer wall of the stirring shaft at equal intervals. According to the stirring device, the annular heat-conducting plate can only move up and down, so that the heating wire in the annular heat-conducting plate and a lead connected with an external power supply can be prevented from being wound on the stirring shaft, and the lead can be prevented from being broken to delay the purification of a waste organic solvent.

Description

Technical Field

[0001] The utility model relates to the technical field of waste organic solvent purification, in particular to a multi-stage distillation tower. Background Art

[0002] Waste organic solvents refer to wastes generated during the production, preparation and use of organic solvents. These solvents usually have a low molecular weight, are liquid at room temperature and pressure, have high volatility and fat solubility, and are currently usually purified using a multi-stage distillation tower. The same type of barreled waste organic solvents are pumped into the raw material tank, homogenized and then heated in a flash kettle. The flash gas is condensed and low-boiling products are collected according to the composition. The bottom liquid is a newly generated hazardous waste and is handled by a professional unit. The intermediate product is sent to the distillation tower for treatment, and the bottom liquid is formulated into fuel oil according to the composition.

[0003] Chinese patent publication number CN214634116U discloses a multi-stage distillation tower, which uses a lifting component and a stirring component to fully stir the mixed liquid inside the barrel, thereby evenly heating the mixed liquid, which is beneficial to the purification of the mixed liquid.

[0004] Although the above patent can achieve that the waste organic solvent can be fully stirred and heated more evenly, the heating rod is fixed on the stirring rod, so that the wire connecting the heating rod and the external power supply will be entangled by the stirring rod, causing the wire to break and delay the purification of the waste organic solvent. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-stage distillation tower to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-stage distillation tower comprises a barrel body, a stirring mechanism is arranged inside the barrel body, an extrusion mechanism is arranged inside the barrel body, a base is fixedly passed through the outer wall of the barrel body, a feed pipe connected with the inside of the barrel body is fixedly passed through the top of the outer wall of the barrel body, an air outlet pipe connected with the inside of the barrel body is fixedly passed through the top surface of the barrel body, a discharge pipe connected with the inside of the barrel body is fixedly passed through the bottom surface of the barrel body, the stirring mechanism comprises a stirring shaft rotating between the bottom surface and the inner top surface of the barrel body, a plurality of stirring blades are fixedly arranged on the outer wall of the stirring shaft at equal intervals, and the extrusion mechanism comprises a cylindrical shell fixed to the inner wall of the barrel body, an annular heat conducting plate is slidably connected to the inner wall of the cylindrical shell, a heating wire is embedded and fixedly arranged inside the annular heat conducting plate.

[0008] Furthermore, a shaped frame is fixedly connected to the top surface of the barrel body, the top end of the stirring shaft passes through the top surface of the barrel body, the outer wall of the stirring shaft located outside the barrel body is fixedly connected to gear one, the top surface of the shaped frame is fixedly connected to a motor, the output end of the motor passes through the inner top surface of the shaped frame and is fixedly connected to gear two meshing with gear one.

[0009] Furthermore, an annular piston is slidably connected to the interior of the cylindrical shell, and a plurality of evenly distributed through holes communicating with the interior of the cylindrical shell are formed through the inner wall of the cylindrical shell.

[0010] Furthermore, a double-groove pulley is fixedly connected to the top of the stirring shaft, two symmetrical threaded sleeves are rotated through the top surface of the barrel body, a screw rod is screwed inside the threaded sleeve and passes through the top of the cylindrical shell and fixed to the annular piston, a single-groove pulley is fixedly connected to the outer wall of the threaded sleeve, and the two grooves in the double-groove pulley are respectively connected to the two single-groove pulleys through belt transmission.

[0011] Furthermore, a plurality of sliding holes communicating with the inside of the cylindrical shell are formed through the inner wall of the cylindrical shell at equal angles, a plurality of connecting blocks are fixed at equal angles between the annular piston and the annular heat conducting plate, and the connecting blocks slide in the sliding holes at corresponding positions.

[0012] Preferably, a connecting plate is fixedly connected between the top ends of the two screw rods.

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

[0014] 1. The annular heat conducting plate can only move up and down, which can prevent the heating wire in the annular heat conducting plate from being entangled with the wire connecting the external power supply on the stirring shaft, thereby avoiding the wire breaking and delaying the purification of the waste organic solvent;

[0015] 2. The waste organic solvent in the cylindrical shell can be pressed out by moving the annular piston downward, and the pressed out waste organic solvent can drive the waste organic solvent in the barrel to flow, so that the waste organic solvent that cannot be stirred by multiple stirring blades can be squeezed to the multiple stirring blades, thereby making the waste organic solvent stirred more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the barrel body in the utility model;

[0018] Figure 3 This is a schematic diagram of the stirring mechanism structure in the utility model;

[0019] Figure 4It is a schematic diagram of the structure of the extrusion mechanism in the utility model.

[0020] In the figure: 1. barrel; 11. feed pipe; 12. air outlet pipe; 13. discharge pipe; 14. mold frame; 2. stirring mechanism; 21. stirring shaft; 22. stirring blade; 23. gear 1; 24. motor; 25. gear 2; 26. double-groove pulley; 3. extrusion mechanism; 31. cylindrical shell; 32. annular heat conduction plate; 33. annular piston; 34. sliding hole; 35. connecting block; 36. screw rod; 37. threaded sleeve; 38. single-groove pulley; 39. connecting plate; 4. base. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4 In an embodiment of the utility model, a multi-stage distillation tower includes a barrel body 1, a stirring mechanism 2 is arranged inside the barrel body 1, an extrusion mechanism 3 is arranged inside the barrel body 1, a base 4 is fixedly penetrated through the outer wall of the barrel body 1, a feed pipe 11 communicating with the inside of the barrel body 1 is fixedly penetrated through the top of the outer wall of the barrel body 1, an air outlet pipe 12 communicating with the inside of the barrel body 1 is fixedly penetrated through the top surface of the barrel body 1, a discharge pipe 13 communicating with the inside of the barrel body 1 is fixedly penetrated through the bottom surface of the barrel body 1, the stirring mechanism 2 includes a stirring shaft 21 rotating between the inner bottom surface and the inner top surface of the barrel body 1, a plurality of stirring blades 22 are fixedly arranged on the outer wall of the stirring shaft 21 at equal intervals, and the extrusion mechanism 3 includes a cylindrical shell 31 fixed to the inner wall of the barrel body 1, an annular heat conducting plate 32 is slidably connected to the inner wall of the cylindrical shell 31, and a heating wire is embedded and fixed inside the annular heat conducting plate 32.

[0023] Specifically, the waste organic solvent is first poured into the barrel body 1, and then the heating wire is energized. The energized heating wire can release heat and transfer it to the annular heat conductive plate 32, and then the stirring shaft 21 drives multiple stirring blades 22 to stir, and the annular heat conductive plate 32 slides up and down on the inner wall of the cylindrical shell 31, so that the waste organic solvent can be stirred, and the annular heat conductive plate 32 that slides up and down can make the waste organic solvent fully heated, and the low-boiling substances in the waste organic solvent are heated to form steam and flow out from the outlet pipe 12, and then the low-boiling substance steam is liquefied and collected through a condensing device. Since the annular heat conductive plate 32 only moves up and down and does not rotate, it can prevent the heating wire in the annular heat conductive plate 32 from being entangled with the wire connected to the external power supply on the stirring shaft 21, thereby preventing the wire from breaking and delaying the purification of the waste organic solvent. Although the wire located in the barrel body 1 may be in a drooping state when the annular heat conductive plate 32 moves up and down, a winding device can be provided at the external wire so that the wire in the barrel body 1 is always in a straightened state.

[0024] Embodiment 1

[0025] like Figure 2 and Figure 3 As shown, in the present embodiment, the top surface of the barrel body 1 is fixedly connected to a molded frame 14, the top end of the stirring shaft 21 passes through the top surface of the barrel body 1, the outer wall of the stirring shaft 21 located outside the barrel body 1 is fixedly connected to a gear 23, the top surface of the molded frame 14 is fixedly connected to a motor 24, the output end of the motor 24 passes through the inner top surface of the molded frame 14 and is fixedly connected to a gear 2 25 meshing with the gear 23.

[0026] In this embodiment, the gear 2 25 can drive the gear 1 23 to rotate through the drive of the motor 24, and the rotating gear 1 23 can drive the stirring shaft 21 to drive the multiple stirring blades 22 to rotate, so that the waste organic solvent in the barrel body 1 can be stirred, so that the waste organic solvent can be more fully heated.

[0027] Embodiment 2

[0028] like Figure 2-4As shown, in this embodiment, an annular piston 33 is slidably connected to the inside of the cylindrical shell 31, and a plurality of evenly distributed through holes communicating with the inside of the cylindrical shell 31 are opened through the inner wall of the cylindrical shell 31, a double-groove pulley 26 is fixedly connected to the top of the stirring shaft 21, and two symmetrical threaded sleeves 37 are rotated through the top surface of the barrel body 1, and a screw 36 that passes through the top of the cylindrical shell 31 and is fixed to the annular piston 33 is screwed inside the threaded sleeve 37, and a single-groove pulley 38 is fixedly connected to the outer wall of the threaded sleeve 37, and the two grooves in the double-groove pulley 26 are respectively connected to the two single-groove pulleys 38 through belt transmission, and a plurality of sliding holes 34 communicating with the inside of the cylindrical shell 31 are opened through the inner wall of the cylindrical shell 31 at equal angles, and a plurality of connecting blocks 35 are fixed at equal angles between the annular piston 33 and the annular heat conducting plate 32, and the connecting blocks 35 slide in the sliding holes 34 at corresponding positions, and a connecting plate 39 is fixedly connected between the tops of the two screw rods 36.

[0029] In this embodiment, the two threaded sleeves 37 can be rotated by the drive of the motor 24, and the rotating threaded sleeves 37 can move the screw rod 36 at the corresponding position. Since a plurality of through holes are opened through the inner wall of the cylindrical shell 31, and a plurality of sliding holes 34 are opened through the inner wall of the cylindrical shell 31 at equal angles, the waste organic solvent passes through the cylindrical shell 31 through the plurality of sliding holes 34 and the plurality of through holes. When the two screw rods 36 move downward, the annular piston 33 can be driven to move downward. The downward annular piston 33 can press out the waste organic solvent in the cylindrical shell 31 and shoot it toward the middle of the barrel body 1. In the process of the waste organic solvent pressed out from the cylindrical shell 31 and shooting toward the middle of the barrel body 1, the waste organic solvent in the barrel body 1 will be driven to flow toward the middle of the barrel body 1, so that the waste organic solvent that cannot be stirred by the plurality of stirring blades 22 can be squeezed toward the plurality of stirring blades 22, thereby making the waste organic solvent stirred more fully. At the same time, the downward annular piston 33 can drive the annular heat conducting plate 32 to move downward, so that the waste organic solvent can be heated more fully.

[0030] 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.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage distillation tower, characterized in that: The invention comprises a barrel (1), wherein a stirring mechanism (2) is arranged inside the barrel (1), and an extrusion mechanism (3) is arranged inside the barrel (1). A base (4) is fixedly passed through the outer wall of the barrel (1), and a feeding pipe (11) communicating with the inside of the barrel (1) is fixedly passed through the top of the outer wall of the barrel (1), and an air outlet pipe (12) communicating with the inside of the barrel (1) is fixedly passed through the top surface of the barrel (1), and a discharge pipe (13) communicating with the inside of the barrel (1) is fixedly passed through the bottom surface of the barrel (1), and the stirring mechanism (2) comprises a stirring shaft (21) rotating between the inner bottom surface and the inner top surface of the barrel (1), and a plurality of stirring blades (22) are fixedly passed through the outer wall of the stirring shaft (21) at equal intervals, and the extrusion mechanism (3) comprises a cylindrical shell (31) fixedly passed through the inner wall of the barrel (1), and an annular heat conducting plate (32) is slidably connected to the inner wall of the cylindrical shell (31), and a heating wire is embedded and fixedly passed through the inner wall of the annular heat conducting plate (32).

2. A multi-stage distillation tower according to claim 1, characterized in that: The top surface of the barrel body (1) is fixedly connected to a profile frame (14); the top end of the stirring shaft (21) passes through the top surface of the barrel body (1); the outer wall of the stirring shaft (21) located outside the barrel body (1) is fixedly connected to a gear 1 (23); the top surface of the profile frame (14) is fixedly connected to a motor (24); the output end of the motor (24) passes through the inner top surface of the profile frame (14) and is fixedly connected to a gear 2 (25) meshing with the gear 1 (23).

3. A multi-stage distillation tower according to claim 2, characterized in that: An annular piston (33) is slidably connected to the interior of the cylindrical shell (31), and a plurality of evenly distributed through holes communicating with the interior of the cylindrical shell (31) are formed through the inner wall of the cylindrical shell (31).

4. A multi-stage distillation tower according to claim 3, characterized in that: The top end of the stirring shaft (21) is fixedly connected to a double-grooved pulley (26); two symmetrical threaded sleeves (37) are rotatably passed through the top surface of the barrel body (1); a screw rod (36) passing through the top end of the cylindrical shell (31) and fixed to the annular piston (33) is screwed inside the threaded sleeve (37); a single-grooved pulley (38) is fixedly connected to the outer wall of the threaded sleeve (37); and two grooves in the double-grooved pulley (26) are respectively connected to the two single-grooved pulleys (38) through a belt transmission.

5. A multi-stage distillation tower according to claim 4, characterized in that: The inner wall of the cylindrical shell (31) is provided with a plurality of sliding holes (34) in an annular shape and at equal angles and communicating with the interior of the cylindrical shell (31); a plurality of connecting blocks (35) are fixed in an annular shape and at equal angles between the annular piston (33) and the annular heat conducting plate (32); the connecting blocks (35) slide in the sliding holes (34) at corresponding positions.

6. A multi-stage distillation tower according to claim 5, characterized in that: A connecting plate (39) is fixedly connected between the top ends of the two screw rods (36).

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