CN214105916U - Polyurethane defoaming device - Google Patents

Abstract

The utility model particularly relates to a polyurethane deaeration device, including reation kettle, the internal agitating unit that is equipped with of cauldron, the upper end outside of its characterized in that cauldron body is equipped with 3 rolling machines that the partition circumference distributes, and the internal portion of cauldron is equipped with the vibrator that 3 and rolling machine position correspond, and the rolling machine passes through wire rope and is connected with the internal vibrator of cauldron. The utility model has the advantages of reasonable structure, convenient use, high defoaming speed and good effect. The utility model shortens the material defoaming time and improves the defoaming efficiency; the use frequency of the vacuum pumping equipment is reduced, and the service life of the equipment is prolonged; the product quality is improved.

Description

Polyurethane defoaming device

Technical Field

The utility model particularly relates to a polyurethane deaeration device.

Background

At present, a large amount of bubbles are mixed into materials in the polyurethane synthesis and stirring process, and the product quality is seriously influenced or even cannot be used if the bubbles exist in the later-stage use. Therefore, the necessary defoaming treatment is carried out at the later stage of polyurethane synthesis. The existing polyurethane defoaming technology adopts anchor stirring or spiral stirring, and bubbles are brought to the top of a material in a stirring mode and are defoamed by vacuumizing. The prior art has the defects that:

1) the bubbles in the container are broken and disappear after overcoming the friction force of the liquid in the liquid and rising to the surface and being larger than the external air pressure, so the bubbles can rise in the polyurethane material by overcoming the friction force with the material at first, the viscosity of the polyurethane is high, the friction resistance is high, the bubbles can be deformed into a flat shape in the rising process, the shape rising resistance is obviously increased, and the bubbles are difficult to rise in the polyurethane material.

2) Stirring is required to be started in the defoaming process, but new bubbles can be mixed in during stirring, so that repeated stirring and defoaming cycles are realized, the bubbles in the materials are eliminated in a long-time cycle, the defoaming time is long, and the effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polyurethane deaeration device, it sets up the vibrting spear in reation kettle, adopts the mode of vibration to make the bubble in the polyurethane rise fast, and the deaeration time is short, effectual.

The utility model discloses a realize through following technical scheme:

the polyurethane defoaming device comprises a reaction kettle, wherein a stirring device is arranged in the kettle body, and the polyurethane defoaming device is characterized in that 3 winding machines which are uniformly distributed on the circumference are arranged outside the upper end of the kettle body, 3 vibrators corresponding to the winding machines are arranged in the kettle body, and the winding machines are connected with the vibrators in the kettle body through steel wire ropes.

The utility model discloses a guarantee the leakproofness between the wire rope and the cauldron body, the wire rope outside adopts polyurethane (rockwell hardness is greater than 90) parcel, sets up the polyurethane sealing washer on the cauldron body, and wire rope slides in the middle of the sealing washer, has constituted one set of complete sealing system.

The utility model discloses a principle of vibrator as follows:

according to the stress condition analysis of the bubbles in the liquid, local vibration is added in the material, so that the vibration of the material and the bubbles at different frequencies enables the bubbles to deform instantly and move irregularly, and the friction force between the bubbles and the material is reduced and the bubbles rise rapidly. The continuous vibration can realize the quick vacuum deaeration under the negative pressure of the reaction kettle.

The utility model discloses a 3 vibrators use in proper order, and the material in the reation kettle realizes the deaeration process with higher speed in the frequency of vibration of difference.

Preferably, the first vibrator of the present invention is a 25HZ to 50HZ vibrator.

Preferably, the second vibrator of the present invention is an 80HZ to 100HZ vibrator.

Preferably, the third vibrator of the present invention is a 130HZ to 150HZ vibrator.

The utility model discloses a rolling machine, vibrator are prior art mature market products, and the rolling machine model is PA200, manufacturer: baoding Donghong Ji machinofacture/Qingyuan county super Jiu machinofacture company Limited.

The utility model discloses a first vibrator model is ZN25, and the second vibrator model is ZN30, and the third vibrator model is ZN70, manufacturer: jining yi coal mechanical equipment, Inc./Henan Anyang vibrator, Inc.

The utility model has the advantages of reasonable structure, convenient use, high defoaming speed and good effect. The utility model shortens the material defoaming time and improves the defoaming efficiency; the use frequency of the vacuum pumping equipment is reduced, and the service life of the equipment is prolonged; the product quality is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

As shown in the figure: 1. a reaction kettle; 2. a stirrer; 3. a coil pipe; 4. a first vibrator; 5. a second vibrator; 6. a manhole; 7. a first winder; 8. a second winder; 9. a speed reducer; 10. a motor; 11. a third winder; a third vibrator; 13. a thermometer; 14. a steam inlet.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1: the bottom of the inner part of the kettle body of the reaction kettle 1 is provided with a stirrer 2, the stirrer 2 is connected with a motor 10 and a speed reducer 9 which are arranged at the upper end outside the kettle body, the upper end outside the kettle body is further provided with a first winding machine 7, a second winding machine 8 and a third winding machine 11 which are distributed in a uniform and circumferential manner, the inner part of the kettle body is further provided with a first vibrator 4, a second vibrator 5 and a third vibrator 12 which correspond to the three winding machine positions, the three winding machines are respectively connected with the three vibrators through steel wire ropes, and the initial positions of the three vibrators are positioned at the upper part of the inner part of the kettle body. As in the prior art, a coil pipe 3, a manhole 6 and a thermometer 13 are arranged outside the kettle body, and a steam inlet 14 is arranged at one end of the coil pipe 3.

The utility model discloses during the use, in material reaction process, 3 rolling machines top in with 3 vibrator rolling to reation kettle, must not hinder 2 rotations of agitator. The agitator 2 activation and vibrator activation are electrically interlocked. Other programs are automatically completed by the computer.

1. And after the reaction of the materials is finished, starting a vacuum pump to vacuumize.

2. And starting the first vibrator 4, conveying the first vibrator 4 to the bottom in the reaction kettle 1 by the first winding machine 7, operating the first vibrator at the frequency of 25Hz to 50Hz, and gradually lifting the first winding machine 7 to the top of the reaction kettle 1 within 10 minutes and then stopping operation.

3. And starting the second vibrator 5, conveying the second vibrator 5 to the bottom in the reaction kettle 1 by the second winding machine 8, operating the second vibrator 5 at the frequency of 80 HZ-100 HZ, and gradually lifting the second vibrator to the top of the reaction kettle within 10 minutes by the second winding machine 8 and then stopping operation.

4. And starting the third vibrator 12, sending the third vibrator 12 to the bottom in the reaction kettle 1 by the third winding machine 11, operating the third vibrator 12 at the frequency of 130Hz to 150Hz for 10 minutes, gradually lifting the third vibrator to the top of the reaction kettle 1 by the third winding machine 11, and stopping.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (4)

1. The utility model provides a polyurethane deaeration device, includes reation kettle, the internal agitating unit that is equipped with of cauldron, and its characterized in that cauldron body's upper end outside is equipped with 3 rolling machines of partition circumference distribution, and the internal portion of cauldron is equipped with 3 vibrators that correspond with rolling machine position, and the rolling machine passes through wire rope and is connected with the internal vibrator of cauldron.

2. The apparatus of claim 1, wherein the first vibrator is a 25HZ to 50HZ vibrator.

3. The apparatus of claim 1, wherein the second vibrator is an 80HZ to 100HZ vibrator.

4. The apparatus of claim 1, wherein the third vibrator is a 130HZ to 150HZ vibrator.

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