CN210786288U

CN210786288U - Rectifying tower for polyvinyl alcohol production

Info

Publication number: CN210786288U
Application number: CN201921211581.8U
Authority: CN
Inventors: 吴龙生
Original assignee: Anhui Longyang Environmental Protection Technology Co ltd
Current assignee: Anhui Longyang Environmental Protection Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-06-19
Anticipated expiration: 2029-07-30

Abstract

The utility model provides a rectifying column for polyvinyl alcohol production usefulness relates to chemical industry equipment technical field, including the rectifying column body, the top of rectifying column body is provided with steam outlet, and the lower extreme of rectifying column body is provided with the liquid outlet, and the inside a plurality of column plate that is provided with of rectifying column body is provided with the washing liquid entry on the lateral wall of rectifying column body, and the outside of every washing liquid entry is provided with the feed liquor pipe, and the washing liquid entry is provided with the swing shower nozzle, is provided with the air jet on the rectifying column body lateral wall between per two column plates, and the rotation air jet shower nozzle is installed to the inboard of air jet. The utility model discloses a plurality of washing liquid inlets and inlet let in the washing liquid and carry out periodic cleaning to the rectifying column, through the setting of swing shower nozzle, make the washing liquid can spray to each position of rectifying column inside, rotate the setting of jet-propelled shower nozzle on the cooperation, can all-roundly wash column plate isotructure, the utility model discloses simple structure, it is easy and simple to handle, prevent to block up, the practicality is high.

Description

Rectifying tower for polyvinyl alcohol production

Technical Field

The utility model relates to a chemical industry equipment technical field especially relates to a rectifying column for polyvinyl alcohol production usefulness.

Background

The rectifying tower is a tower type vapor-liquid contact device for rectification, the basic principle of distillation is to gasify and partially condense the liquid mixture for many times, and the unit operation for separation is realized by utilizing the characteristic of different volatility of each component in the liquid mixture.

In the polyvinyl alcohol production process, the blocking condition inside the rectifying tower can be avoided, and in the prior art, when the blocking condition occurs, a large amount of manpower is consumed, the operation efficiency is reduced, and certain defects exist by manually cleaning structures such as tower plates, overflow weirs and the like, so that the development of the anti-blocking rectifying tower which has a good anti-blocking effect, is trouble-saving and labor-saving and is simple and convenient to operate has very important significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rectifying column for polyvinyl alcohol production usefulness to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: a rectifying column for polyvinyl alcohol production usefulness, includes the rectifying column body, its characterized in that:

the top of the rectifying tower body is provided with a steam outlet, the lower end of the rectifying tower body is provided with a liquid outlet, the upper part of the right side of the side wall of the rectifying tower body is provided with a reflux inlet, the lower part of the right side of the side wall of the rectifying tower body is provided with a steam inlet, the middle position of the side wall of the rectifying tower body is provided with a feed inlet, a plurality of tower plates are arranged inside the rectifying tower body, the side wall of the rectifying tower body is provided with cleaning liquid inlets at the same position with the vertical direction of the tower plates, the outer side of each cleaning liquid inlet is provided with a liquid inlet pipe, the cleaning liquid inlets are provided with swing nozzles, the two sides of the liquid inlet pipes are connected in series through a liquid inlet main guide pipe, the lower end of the rectifying tower body is provided with a drain outlet, the side wall of the rectifying tower body between every two tower plates is provided with, and electromagnetic valves are arranged at the inlet of the liquid inlet main conduit and on the gas conveying pipe. Selecting cleaning liquid capable of dissolving and washing impurities which easily cause the blockage of the rectifying tower, introducing the cleaning liquid through a plurality of cleaning liquid inlets and liquid inlets to regularly clean the rectifying tower, through the arrangement of the swinging spray head, the cleaning fluid can be sprayed to each position in the rectifying tower, and after the structures such as the tower plate and the like are cleaned in all directions by matching with the arrangement of the upper rotating spray head, the residual liquid can be discharged through a drain outlet and a drain pipe, after the cleaning liquid cleans the interior of the rectifying tower, clean water can be introduced to clean the rectifying tower, the regular cleaning greatly reduces the probability of blockage, in the whole cleaning process, the operator controls the electromagnetic valve through the controller, so that a large amount of manpower is not needed, the trouble and the labor are saved, after the cleaning is finished, the liquid inlet main guide pipe is closed, the gas conveying pipe is opened, and the gas is sprayed to the rectifying tower body, so that the water in the rectifying tower body is quickly lost.

Preferably, the front and the rear of the tower plate are respectively provided with an oscillating spray head. So that the tower plate can be cleaned more thoroughly.

Preferably, the rotary air injection nozzle is a 360-degree rotatable nozzle.

Preferably, the swing shower nozzle includes the axis of rotation, the intermediate position of axis of rotation runs through and is provided with the fixed orifices, installs the washing shower nozzle in the fixed orifices, the upper and lower both ends of axis of rotation are passed through the bearing and are rotated and install between the fixed plate, and the motor is installed to the upper end that is located the upside fixed plate, the axis of rotation is connected with motor machinery, the outside of motor is provided with the safety cover, install the control switch of motor on the lateral wall of rectifying column body. During shower nozzle fixed mounting advances the fixed orifices, drive the reciprocal rotation of making a round trip of axis of rotation through the motor, accomplish the horizontal hunting that washs the shower nozzle for the cleaning performance is better, and the washing area is bigger, and the safety cover plays fine guard action to the motor, prevents that the washing liquid from influencing the motor and normally works.

Preferably, one end of the fixing plate is vertically and fixedly arranged on the inner wall of the rectifying tower body.

Preferably, the motor drives the rotating shaft to rotate in a reciprocating manner, and the rotating angle is 150 degrees.

Preferably, the control switch is electrically connected with each motor.

The utility model has the advantages that:

the utility model selects the cleaning liquid which can dissolve and wash the impurities which easily cause the blockage of the rectifying tower, the cleaning liquid is introduced through a plurality of cleaning liquid inlets and liquid inlets to clean the rectifying tower regularly, the cleaning liquid can be sprayed to each position in the rectifying tower through the arrangement of the swinging spray head, the arrangement of the rotating spray head is matched, after the structures such as tower plates and the like can be cleaned in all directions, the residual liquid can be discharged through a drain and a drain pipe, after the cleaning liquid cleans the interior of the rectifying tower, the clear water can be introduced to clean the rectifying tower, the probability of the blockage situation is greatly reduced through the regular cleaning, in the whole cleaning process, an operator can realize through controlling the electromagnetic valve, no large amount of manpower is consumed, the trouble and labor are saved, after the cleaning is finished, the liquid inlet main conduit is closed, the gas pipe is opened, the gas is sprayed to the rectifying tower body, the water in the rectifying tower is quickly lost, the utility model discloses simple structure, it is easy and simple to handle, can be fine rinse the rectifying column body is inside, prevent to block up, guarantee the high-efficient production of polyvinyl alcohol, the practicality is high.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic perspective view of the oscillating nozzle of the present invention;

reference numerals: 1-rectifying column body; 2-a steam outlet; 3-a liquid outlet; 4-a reflux inlet; 5-a steam inlet; 6-a feed inlet; 7-column plate; 8-a cleaning solution inlet; 9-a liquid inlet pipe; 10-oscillating spray heads; 10 a-a rotating shaft; 10 b-a fixation hole; 10 c-cleaning the spray head; 10 d-bearing; 10 e-fixing the plate; 10 f-motor; 11-liquid inlet main conduit; 12-a sewage draining outlet; 13-an air jet; 14-rotating air injection nozzles; 15-gas transmission pipe; 16-electromagnetic valve.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in figure 1-2, a rectifying tower for polyvinyl alcohol production comprises a rectifying tower body 1, a steam outlet 2 is arranged at the top of the rectifying tower body 1, a liquid outlet 3 is arranged at the lower end of the rectifying tower body 1, a reflux inlet 4 is arranged above the right side of the side wall of the rectifying tower body 1, a steam inlet 5 is arranged below the right side of the side wall of the rectifying tower body 1, a feed inlet 6 is arranged at the middle position of the side wall of the rectifying tower body 1, a plurality of tower plates 7 are arranged in the rectifying tower body 1, a cleaning liquid inlet 8 is arranged at the same vertical position of the tower plates 7 on the side wall of the rectifying tower body 1, a liquid inlet pipe 9 is arranged outside each cleaning liquid inlet 8, a swing spray head 10 is arranged at the cleaning liquid inlet 8, the two sides of the liquid inlet pipe 9 are connected in series through a liquid inlet main conduit 11, a drain outlet 12 is arranged at the lower end, an air jet 13 is arranged on the side wall of the rectifying tower body 1 between every two tower plates 7, a rotary air jet nozzle 14 is arranged on the inner side of the air jet 13, an air delivery pipe 15 is arranged on the outer side of the air jet 13, and electromagnetic valves 16 are arranged at the inlet of the liquid inlet main guide pipe 11 and on the air delivery pipe 15.

Cleaning liquid capable of dissolving and washing impurities which easily cause blockage of the rectifying tower is taken, the cleaning liquid is introduced through a plurality of cleaning liquid inlets 8 and a liquid inlet pipe 9 to regularly clean the interior of the rectifying tower body 1, the swinging spray head 10 can swing and normally wash while introducing water, so that the interior of the rectifying tower body 1 is washed in a large area, the electromagnetic valve 16 on the gas pipe 15 is opened while washing, the air jet spray head 14 is rotated for 360-degree rotation while jetting air, the air flow can impact the interior of the rectifying tower body 1, the dual effects of the water flow and the air flow are realized, the cleaning liquid can be jetted to each position in the rectifying tower, after the cleaning liquid cleans structures such as tower plates, residual liquid can be discharged through the drain outlet 12, after the cleaning liquid cleans the interior of the rectifying tower, clear water can be introduced to clean the interior of the rectifying tower body 1, after the cleaning is finished, the electromagnetic valve 16 on the liquid inlet main guide pipe 11 is closed, the air delivery pipe 15 is opened, and the gas sprays the rectifying tower body 1, so that the water inside the rectifying tower body 1 is quickly lost, and the effect of drying the inside is achieved.

Example 2

As shown in figures 1-3, a rectifying tower for polyvinyl alcohol production comprises a rectifying tower body 1, a steam outlet 2 is arranged at the top of the rectifying tower body 1, a liquid outlet 3 is arranged at the lower end of the rectifying tower body 1, a reflux inlet 4 is arranged above the right side of the side wall of the rectifying tower body 1, a steam inlet 5 is arranged below the right side of the side wall of the rectifying tower body 1, a feed inlet 6 is arranged at the middle position of the side wall of the rectifying tower body 1, a plurality of tower plates 7 are arranged in the rectifying tower body 1, a cleaning liquid inlet 8 is arranged at the same vertical position of the tower plates 7 on the side wall of the rectifying tower body 1, a liquid inlet pipe 9 is arranged outside each cleaning liquid inlet 8, a swing nozzle 10 is arranged at the cleaning liquid inlet 8, the two sides of the liquid inlet pipe 9 are connected in series through a liquid inlet main conduit 11, a drain outlet 12 is arranged at the lower end of, an air jet 13 is arranged on the side wall of the rectifying tower body 1 between every two tower plates 7, a rotary air jet nozzle 14 is arranged on the inner side of the air jet 13, an air delivery pipe 15 is arranged on the outer side of the air jet 13, and electromagnetic valves 16 are arranged at the inlet of the liquid inlet main guide pipe 11 and on the air delivery pipe 15.

The swing nozzle 10 comprises a rotating shaft 10a, a fixing hole 10b is formed in the middle of the rotating shaft 10a in a penetrating mode, a cleaning nozzle 10c is installed in the fixing hole 10b, the upper end and the lower end of the rotating shaft 10a are installed between fixing plates 10e in a rotating mode through a bearing 10d, a motor 10f is installed at the upper end of the upper side fixing plate 10e, the rotating shaft 10a is mechanically connected with the motor 10f, a protective cover 10g is arranged on the outer side of the motor 10f, and a control switch of the motor 10f is installed on the outer side wall of the rectifying tower body 1.

After 9 water-flows in the feed liquor pipe, open control switch, motor 10f begins to work, axis of rotation 10a begins to do reciprocating rotary motion under the effect of motor, axis of rotation 10a drives and washs shower nozzle 10c left and right rocking motion, the size of horizontal hunting angle is at 150 degrees, axis of rotation 10a regularly swings between two upper and lower fixed plates 10e, in wasing and following clear water washing, washing liquid and clear water can all be used, the guard shield 10g just can be fine plays the guard action to motor 10f this moment.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A rectifying column for polyvinyl alcohol production usefulness, includes rectifying column body (1), its characterized in that:

the top of the rectifying tower body (1) is provided with a steam outlet (2), the lower end of the rectifying tower body (1) is provided with a liquid outlet (3), a reflux inlet (4) is arranged above the right side of the side wall of the rectifying tower body (1), a steam inlet (5) is arranged below the right side of the side wall of the rectifying tower body (1), a feed inlet (6) is arranged in the middle of the side wall of the rectifying tower body (1), a plurality of column plates (7) are arranged in the rectifying tower body (1), cleaning liquid inlets (8) are arranged on the same vertical position of the column plates (7) on the side wall of the rectifying tower body (1), a liquid inlet pipe (9) is arranged outside each cleaning liquid inlet (8), a swing spray head (10) is arranged at the cleaning liquid inlet (8), and two sides of the liquid inlet pipe (9) are connected in series through a liquid inlet main guide pipe (11), the lower extreme of rectifying column body (1) is provided with drain (12), per two be provided with air jet (13) on rectifying column body (1) lateral wall between column plate (7), the inboard of air jet (13) is installed and is rotated air jet nozzle (14), and gas-supply pipe (15) are installed in the outside of air jet (13), all be provided with solenoid valve (16) on the entrance of feed liquor main pipe (11) and gas-supply pipe (15).

2. The rectification column for the production of polyvinyl alcohol according to claim 1, wherein: the front and the rear of the tower plate (7) are respectively provided with a swinging spray head (10).

3. The rectification column for the production of polyvinyl alcohol according to claim 1, wherein: the rotary air injection nozzle (14) is a 360-degree rotatable nozzle.

4. The rectification column for the production of polyvinyl alcohol according to claim 1, wherein: swing shower nozzle (10) are including axis of rotation (10a), the intermediate position of axis of rotation (10a) runs through and is provided with fixed orifices (10b), installs washing shower nozzle (10c) in fixed orifices (10b), the upper and lower both ends of axis of rotation (10a) are passed through bearing (10d) and are rotated and install between fixed plate (10e), and motor (10f) are installed to the upper end that is located upside fixed plate (10e), axis of rotation (10a) and motor (10f) mechanical connection, the outside of motor (10f) is provided with safety cover (10g), install the control switch of motor (10f) on the lateral wall of rectifying column body (1).

5. The rectification column for the production of polyvinyl alcohol according to claim 4, wherein: one end of the fixed plate (10e) is vertically and fixedly arranged on the inner wall of the rectifying tower body (1).

6. The rectification column for the production of polyvinyl alcohol according to claim 4, wherein: the motor (10f) drives the rotating shaft (10a) to rotate in a reciprocating mode, and the rotating angle is 150 degrees.

7. The rectification column for the production of polyvinyl alcohol according to claim 4, wherein: the control switch is electrically connected with each motor (10 f).