CN216358821U

CN216358821U - Rectifying column is used in production of compound polymerization inhibitor

Info

Publication number: CN216358821U
Application number: CN202123063212.9U
Authority: CN
Inventors: 陈伟; 段培; 陈涛
Original assignee: Jinan Xinzhaochang Chemical Technology Co ltd
Current assignee: Jinan Xinzhaochang Chemical Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-22
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a rectification tower for producing a compound polymerization inhibitor, which relates to the technical field of polymerization inhibitor production and comprises a rectification tank without a top, wherein the outer wall of the rectification tank close to the top end is fixedly connected with a top seat, the outer wall of the top seat is provided with an annular groove, a top cover is inserted in the annular groove, the outer walls of two sides of the rectification tank are respectively provided with a plurality of mounting holes, metal covers are respectively and fixedly connected in the mounting holes, one ends of the metal covers, which are positioned outside the rectification tank, are provided with openings, the opening ends of the metal covers are fixedly provided with end plates through bolts, the side walls of the end plates are fixedly provided with a plurality of electric heating tubes through bolts, the electric heating tubes are respectively inserted in the metal covers, and one end surfaces of the metal covers, which are positioned in the rectification tank, are cambered surfaces. The utility model relates to a rectifying tower for producing a compound polymerization inhibitor, which has better heating performance on raw materials of the polymerization inhibitor, so that the raw materials of the polymerization inhibitor at each part can be heated quickly and uniformly, and the purification sufficiency and uniformity of the polymerization inhibitor are improved.

Description

Rectifying column is used in production of compound polymerization inhibitor

Technical Field

The utility model relates to the technical field of polymerization inhibitor production, in particular to a rectifying tower for producing a compound polymerization inhibitor.

Background

The polymerization inhibitor is an industrial aid, and is generally used to prevent the progress of polymerization. The inhibitor molecules react with the chain radicals to form non-radical species or low reactive radicals that cannot initiate, thereby terminating the polymerization. Then, in the production process of the compound polymerization inhibitor, a rectifying tower is needed to improve the purity of the compound polymerization inhibitor.

The existing rectifying tower for producing the compound polymerization inhibitor mostly has the following defects in the using process: improve the heater block and carry out the direct heating to the outer wall of rectifying tank, make the heat transfer of rectifying tank for inside polymerization inhibitor raw materials through the mode of heat transfer, and then impel its rectification, this kind of mode can lead to intraductal institute in to be heated unevenly from outside to inside, and then causes the purification insufficient, consequently, the rectifying column for production of present compound polymerization inhibitor still can not agree with actual need well mostly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a rectifying tower for producing a compound polymerization inhibitor, which has the advantage that the raw material of the polymerization inhibitor in a rectifying tank can be heated quickly and uniformly.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a rectification column is used in production of compound type polymerization inhibitor, includes the rectification jar that does not have the top, the rectification jar is close to the outer wall fixedly connected with footstock on top, and the top outer wall of footstock is opened there is the ring channel, and it has the top cap to peg graft in the ring channel, the both sides outer wall of rectification jar has all opened a plurality of mounting holes, equal fixedly connected with metal covering in the mounting hole, and the metal covering is located the outside one end opening of rectification jar, and the open end of metal covering has the end plate through the bolt fastening, and the lateral wall of end plate has a plurality of electrothermal tubes through the bolt fastening, and the electrothermal tube is all pegged graft in the metal covering, a terminal surface that the metal covering is located the rectification jar is the cambered surface, and the cambered surface lateral wall fixedly connected with same heat-transfer pipe that is located two metal coverings of same height, it has same to peg graft in the heat-transfer pipe, the outer wall of (mixing) and the inner wall laminating of heat-transfer pipe.

Through the technical scheme: when the purification, drop into in the rectifying tank with appropriate amount polymerization inhibitor raw materials, with electrothermal tube and external power switch-on after that, then the electrothermal tube carries out the synchronous heating to the lateral wall of metal covering and rectifying tank, and the metal covering is inserted in the inside of rectifying tank, this can be so that rectifying tank all can be heated in step from the edge side to inboard polymerization inhibitor raw materials, improve the homogeneity of purification, in the above-mentioned, the heat of metal covering can be transmitted for the heat-transfer pipe, the heat-transfer pipe is called the heat transfer and is given the (mixing) shaft, and then further improve the efficiency that polymerization inhibitor was heated, realize purification with higher speed.

The utility model is further provided that a plurality of groups of stirring pieces distributed annularly are welded on the outer wall of the stirring shaft, and the stirring pieces are all of a wave-shaped structure.

Through the technical scheme: the stirring sheet with the wave-shaped structure can enlarge the contact area with the raw materials of the polymerization inhibitor and improve the uniform mixing effect of the raw materials of the polymerization inhibitor.

The stirring shaft is further provided with a prism groove at the top end, a prism rod is inserted in the prism groove, and a circular shaft is welded at the top end of the prism rod.

Through the technical scheme: because the prism rod is inserted in the prism groove, workers can conveniently lift the top cover by utilizing peripheral lifting equipment, so that the cleaning of the interior of the rectification tank in the later period is facilitated.

The utility model is further arranged in such a way that a hood is fixed on the outer wall of the top cover through bolts, a motor is fixed on the inner wall of the hood through bolts, and the bottom end of an output shaft of the motor is in key connection with the top end of the round shaft.

Through the technical scheme: the motor provides driving force for the rotation and the stirring of the stirring shaft.

The utility model is further set up in that the outer wall of the top cover is provided with a mounting hole, a steam exhaust hopper is welded in the mounting hole, the top end of the steam exhaust hopper is sleeved with a condensing pipe, and the bottom of the condensing pipe is in threaded sleeve connection with a liquid discharge head.

Through the technical scheme: the polymerization inhibitor steam generated during rectification is discharged from the steam discharge hopper and is discharged from the liquid discharge head after being condensed by the condensing pipe.

The utility model is further arranged in such a way that a cylindrical barrel is welded on the outer wall of the condensation pipe, pipe holes are formed in the side walls of the top end and the bottom end of the cylindrical barrel, and a liquid feeding pipe and a liquid outlet pipe are respectively welded in the two pipe holes.

Through the technical scheme: in the in-process of condensation, can be connected liquid feeding pipe and outside cold water source, then cold water enters into a cylinder, and then cools down the outer wall of condenser pipe, realizes the purpose of accelerating the liquefaction of steam condensation.

The utility model is further arranged in such a way that the outer wall of the top cover is provided with a through hole, a feeding hopper is welded in the through hole, the outer wall of the bottom of the rectifying tank is provided with a slag discharge hole, a slag discharge pipe is welded in the slag discharge hole, and the outer walls of the slag discharge pipe and the feeding hopper are both sleeved with valves.

Through the technical scheme: the feeding hopper is convenient for workers to add polymerization inhibitor raw materials into the rectifying tank, the residue discharge pipe can be convenient for discharging residual materials after the polymerization inhibitor is rectified at the later stage, and the valve is sleeved on the outer wall of the residue discharge pipe and the outer wall of the feeding hopper, so that the workers can open and close the feeding hopper and the residue discharge pipe according to actual needs.

The utility model is further arranged in such a way that three inclined stirring rods which are distributed in an annular shape at equal intervals are welded on the side wall of the stirring shaft close to the bottom end, and the same spiral blade is welded on the outer wall of one side of the three inclined stirring rods, which is opposite to the side wall.

Through the technical scheme: along with the rotation of (mixing) shaft, stirring rod and spiral leaf can stir the material of rectifier tank bottom to one side, and the spiral leaf can convey the top with the material of rectifier tank bottom, and then the interaction of material about realizing, and three stirring rod to one side can form the triangle-shaped structure for the chassis of whole (mixing) shaft is more stable, reduces the shake of (mixing) shaft in the course of the work.

The utility model has the beneficial effects that:

1. this be used for reassembling type polymerization inhibitor rectifying column for production, through being provided with the electrothermal tube, the metal covering, heat-transfer pipe and (mixing) shaft, the electrothermal tube carries out the synchronous heating to the lateral wall of metal covering and rectification jar, and the inside at the rectification jar is inserted to the metal covering, this can be so that the rectification jar is all heated in step from the edge side to inboard polymerization inhibitor raw materials, and the heat of metal covering can transmit the heat-transfer pipe, the heat-transfer pipe transmits the (mixing) shaft with heat, and then further improve the efficiency that polymerization inhibitor is heated, realize purification with higher speed, the stirring piece of wave structure can enlarge the area of contact with polymerization inhibitor raw materials, the improvement is to the mixing effect of polymerization inhibitor raw materials.

2. This be used for compound type polymerization inhibitor production to use rectifying column through being provided with the prism pole, because the prism pole is pegged graft in the prism inslot, so can be convenient for the staff utilizes the jacking equipment of peripheral hardware to hoist the top cap to do benefit to the later stage and clean rectifying tank inside.

3. This be used for compound type polymerization inhibitor production rectifying column through being provided with oblique stirring rod and spiral leaf, oblique stirring rod and spiral leaf can stir the material of rectifying tank bottom, and the spiral leaf can convey the top with the material of rectifying tank bottom, and then the interaction of material about realizing, and three oblique stirring rod can form the triangle-shaped structure for the chassis of whole (mixing) shaft is more stable, reduces the shake of (mixing) shaft in the course of the work.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a rectifying column for producing a compound polymerization inhibitor, which is provided by the utility model;

FIG. 2 is a schematic diagram of the internal structure of a rectifying tank of a rectifying tower for producing a compound polymerization inhibitor, which is provided by the utility model;

FIG. 3 is a schematic structural diagram of a metal cover, an electrothermal tube and an end plate of a rectifying tower for producing a compound polymerization inhibitor provided by the utility model.

In the figure: 1. a rectification tank; 2. an end plate; 3. a valve; 4. a top seat; 5. a top cover; 6. a feeding hopper; 7. a hood; 8. a steam discharge hopper; 9. a condenser tube; 10. a cylindrical barrel; 11. a liquid discharge head; 12. a circular shaft; 13. a stirring shaft; 14. a prismatic rod; 15. a metal cover; 16. a heat transfer tube; 17. A stirring sheet; 18. a feeding hopper; 19. helical leaves; 20. an electric heating tube.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

Referring to fig. 1-3, a rectifying column for producing a compound polymerization inhibitor comprises a non-top rectifying tank 1, wherein a top seat 4 is welded on the outer wall of the rectifying tank 1 close to the top end, an annular groove is formed on the outer wall of the top seat 4, a top cover 5 is inserted in the annular groove, a plurality of mounting holes are formed in the outer walls of two sides of the rectifying tank 1, metal covers 15 are welded in the mounting holes, the metal covers 15 are inserted in the rectifying tank 1, so that the polymerization inhibitor raw materials from the edge side to the inner side of the rectifying tank 1 can be synchronously heated, the uniformity of purification is improved, one end of each metal cover 15, which is positioned outside the rectifying tank 1, is opened, an end plate 2 is fixed at the opening end of each metal cover 15 through bolts, a plurality of electric heating tubes 20 are fixed on the side wall of the end plate 2 through bolts, a proper amount of polymerization inhibitor raw materials are put into the rectifying tank 1, then the electric heating tubes 20 are communicated with an external power supply, and the electric heating tubes 20 synchronously heat the metal covers 15 and the side wall of the rectifying tank 1, the electrothermal tube 20 all pegs graft in metal covering 15, the metal covering 15 is located a terminal surface of rectification jar 1 and is the cambered surface, the welding of the cambered surface lateral wall of two metal covering 15 that are located the same height has same heat-transfer pipe 16, it has same (mixing) shaft 13 to peg graft in the heat-transfer pipe 16, the outer wall of (mixing) shaft 13 and the inner wall laminating of heat-transfer pipe 16, the heat of metal covering 15 can be transmitted for heat-transfer pipe 16, heat-transfer pipe 16 is called heat transmission for (mixing) shaft 13, and then further the efficiency that the polymerization inhibitor is heated is improved, realize purification with higher speed.

Specifically, the outer wall welding of (mixing) shaft 13 has the stirring piece 17 that the multiunit annular distributes, and stirring piece 17 is the wave structure, and the stirring piece 17 of wave structure can enlarge the area of contact with polymerization inhibitor raw materials, improves the mixing effect to polymerization inhibitor raw materials.

Specifically, the top of (mixing) shaft 13 is opened there is the prism groove, and prism pole 14 has been pegged graft in the prism groove, and the welding of the top of prism pole 14 has round axle 12, because prism pole 14 pegs graft in the prism groove, so can be convenient for the staff utilizes the jacking of peripheral hardware to top cap 5 to do benefit to the later stage and clean 1 insides of rectification jar.

Specifically, the top outer wall of top cap 5 passes through bolt fastening has aircraft bonnet 7, and the inner wall of aircraft bonnet 7 passes through bolt fastening has the motor, and the bottom of motor output shaft and the top key-type connection of round axle 12, the motor provides drive power for the rotatory stirring of (mixing) shaft 13.

Specifically, the outer wall of the top cover 5 is provided with a mounting hole, a steam exhaust hopper 8 is welded in the mounting hole, a condensing pipe 9 is sleeved on the top end of the steam exhaust hopper 8, a liquid discharge head 11 is sleeved on the bottom thread of the condensing pipe 9, and polymerization inhibitor steam generated during rectification is discharged from the steam exhaust hopper 8 and is discharged from the liquid discharge head 11 after being condensed by the condensing pipe 9.

Specifically, the outer wall welding of condenser pipe 9 has a cylinder section of thick bamboo 10, and the top and the bottom lateral wall of a cylinder section of thick bamboo 10 all have the tube hole, and it throws liquid pipe and drain pipe to weld respectively in two tube holes, at the in-process of condensation, can be connected throwing liquid pipe and outside cold water source, then cold water enters into a cylinder section of thick bamboo 10, and then cools down the outer wall of condenser pipe 9, realizes the purpose of steam condensation liquefaction with higher speed.

Concretely, the through-hole has been opened to the top outer wall of top cap 5, welded feeding hopper 6 in the through-hole, the bottom outer wall of rectifying tank 1 is opened there is the scum hole, the scum pipe has been welded in the scum hole, valve 3 has all been cup jointed to the outer wall of scum pipe and feeding hopper 6, feeding hopper 6 is convenient for the staff to add polymerization inhibitor raw materials to rectifying tank 1, the scum pipe can be convenient for the residual material after the later stage discharge polymerization inhibitor rectification, and valve 3 has all been cup jointed to the outer wall of scum pipe and feeding hopper 6, so the staff of being convenient for opens and shuts feeding hopper 6 and the scum pipe according to actual need.

Specifically, the lateral wall welding that (mixing) shaft 13 is close to the bottom has the oblique stirring rod 18 of three equidistance annular distributions, the welding of the outer wall of one side that three oblique stirring rod 18 is relative has same spiral leaf 19, along with the rotation of (mixing) shaft 13, oblique stirring rod 18 and spiral leaf 19 can stir the material of rectification tank 1 bottom, and spiral leaf 19 can convey the top with the material of rectification tank 1 bottom, and then realize the interaction of material from top to bottom, and three oblique stirring rod 18 can form the triangle-shaped structure, make the chassis of whole (mixing) shaft 13 more stable, reduce the shake of (mixing) shaft 13 in the course of the work.

The working principle is as follows: the feeding hopper 6 is convenient for workers to add polymerization inhibitor raw materials into the rectifying tank 1, when purifying, a proper amount of polymerization inhibitor raw materials are put into the rectifying tank 1, then the motor and the electric heating tube 20 are connected with an external power supply, the electric heating tube 20 synchronously heats the metal cover 15 and the side wall of the rectifying tank 1, the metal cover 15 is inserted into the rectifying tank 1, so that the polymerization inhibitor raw materials from the edge side to the inner side of the rectifying tank 1 can be synchronously heated, the uniformity of purification is improved, polymerization inhibitor steam generated during rectification is discharged from the steam discharge hopper 8 and is discharged from the liquid discharge head 11 after being condensed by the condensing tube 9, in the process, the heat of the metal cover 15 is transferred to the heat transfer tube 16, the heat transfer tube 16 is transferred to the stirring shaft 13, the heating efficiency of the polymerization inhibitor is further improved, the purification is accelerated, and meanwhile, the motor drives the stirring shaft 13 and the stirring sheet 17 to rotate, along with the rotation of (mixing) shaft 13, stirring rod 18 and spiral leaf 19 can stir the material of rectification jar 1 bottom to one side, and spiral leaf 19 can convey the top with the material of rectification jar 1 bottom, and then realize the interaction of material from top to bottom, and three stirring rod 18 can form the triangle-shaped structure to one side, make the chassis of whole (mixing) shaft 13 more stable, reduce the shake of (mixing) shaft 13 in the course of the work, the stirring piece 17 of wave structure can enlarge the area of contact with polymerization inhibitor raw materials, improve the mixing effect to polymerization inhibitor raw materials, because prism pole 14 is pegged graft at the prism inslot, so can be convenient for the staff utilizes the jacking equipment of peripheral hardware to lift top cap 5, in order to do benefit to the later stage and clean 1 inside of rectification jar.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a rectification column is used in production of compound polymerization inhibitor, includes rectifying tank (1) that does not have a top, its characterized in that, rectifying tank (1) is close to the outer wall fixedly connected with footstock (4) on top, and the top outer wall of footstock (4) is opened there is the ring channel, and the ring channel interpolation has top cap (5), a plurality of mounting holes have all been opened to the both sides outer wall of rectifying tank (1), and equal fixedly connected with metal covering (15) in the mounting hole, and metal covering (15) are located the outside one end opening of rectifying tank (1), and the open end of metal covering (15) is through the bolt fastening has end plate (2), and the lateral wall of end plate (2) is through the bolt fastening has a plurality of electrothermal tubes (20), and electrothermal tube (20) all peg graft in metal covering (15), a terminal surface that metal covering (15) are located rectifying tank (1) is the cambered surface, and the cambered surface lateral wall fixedly connected with same heat-transfer pipe (16) of two metal covering (15) that are located same height, the same stirring shaft (13) is inserted in the heat transfer pipe (16), and the outer wall of the stirring shaft (13) is attached to the inner wall of the heat transfer pipe (16).

2. The rectifying tower for producing the compound polymerization inhibitor according to claim 1, wherein a plurality of groups of stirring blades (17) distributed annularly are welded on the outer wall of the stirring shaft (13), and the stirring blades (17) are all of a wave-shaped structure.

3. The rectifying column for producing the compound polymerization inhibitor according to claim 2, wherein the top end of the stirring shaft (13) is provided with a prismatic groove, a prismatic rod (14) is inserted in the prismatic groove, and the top end of the prismatic rod (14) is welded with the circular shaft (12).

4. The rectifying tower for producing the compound polymerization inhibitor according to claim 3, wherein a hood (7) is fixed on the outer wall of the top cover (5) through bolts, a motor is fixed on the inner wall of the hood (7) through bolts, and the bottom end of an output shaft of the motor is in key connection with the top end of the circular shaft (12).

5. The rectifying tower for producing the compound polymerization inhibitor according to claim 4, wherein the top outer wall of the top cover (5) is provided with a mounting hole, a steam exhaust hopper (8) is welded in the mounting hole, the top end of the steam exhaust hopper (8) is sleeved with a condensing pipe (9), and the bottom of the condensing pipe (9) is sleeved with a liquid discharge head (11) in a threaded manner.

6. The rectifying tower for producing the compound polymerization inhibitor according to claim 5, wherein the condensing pipe (9) is welded with a cylindrical barrel (10) on the outer wall, the top end and the bottom end of the cylindrical barrel (10) are provided with pipe holes, and the two pipe holes are respectively welded with a liquid feeding pipe and a liquid outlet pipe.

7. The rectifying tower for producing the compound polymerization inhibitor according to claim 6, wherein the top outer wall of the top cover (5) is provided with a through hole, a feeding hopper (6) is welded in the through hole, the bottom outer wall of the rectifying tank (1) is provided with a slag discharging hole, a slag discharging pipe is welded in the slag discharging hole, and the outer walls of the slag discharging pipe and the feeding hopper (6) are sleeved with the valve (3).

8. The rectifying column for production of a compound polymerization inhibitor as claimed in claim 7, wherein the side wall of the stirring shaft (13) near the bottom end is welded with three inclined stirring rods (18) distributed annularly at equal intervals, and the outer wall of the opposite side of the three inclined stirring rods (18) is welded with the same spiral blade (19).