Polyurethane deaeration device

Technical field of spandex defoaming device

[0001] The present invention relates to a spandex production equipment, in particular to a spandex defoaming device.

Background technique

[0002] At present, the universal deaeration device for spandex production includes a cone-shaped inner cylinder, the lower end of which is provided with a liquid outlet, the upper part of which is provided with a liquid inlet, and the lower end of the liquid inlet is connected with an annular flow splitting device, and the outlet of the annular flow splitting device Close to the inner wall of the cone-shaped inner cylinder, the inside of the cone-shaped inner cylinder is evacuated. When in use, the spandex stock solution is fed from the liquid inlet to the annular splitter device, and the spandex stock solution flows from the outlet of the annular splitter device along the inner wall of the cone-shaped inner cylinder Flow down to perform a defoaming treatment, and the defoamed spandex stock solution flows out from the liquid outlet.

[0003] However, since the spandex stock solution flows directly down the inner wall of the cone-shaped inner cylinder for defoaming, the defoaming area through which the spandex stock solution flows is small. When the spandex production output increases, a large amount of spandex stock solution must be continuously degassed. Bubble treatment, the limited deaeration area will cause the bubbles in the spandex stock solution to not be completely removed, which will affect the size and strength of the spandex yarn.

Summary of the invention

[0004] The object of the present invention is to provide a spandex defoaming device with a large defoaming area to improve the defoaming effect of the spandex defoaming device when a large number of continuous spandex defoaming is performed.

[0005] In order to achieve the above objective, the present invention provides a spandex defoaming device, including a cone-shaped inner cylinder, the upper end of which is equipped with a liquid inlet, and the lower end of the liquid inlet is connected with a number of evenly distributed through a cylindrical cavity mounted below the discharge tube, the discharge tube has a cylindrical baffle, said baffle tube having a plurality of vertically connected to form a truncated cone the upper and lower openings of the cavity, each of said sub-liquid dispensing tube The outlet of the pipe corresponds to the position of the inner wall of the top of the baffle cylinder.

[0006] In the spandex defoaming device of the present invention, there are six truncated cone cavities, and the wide bottom edge of each of the truncated cone cavities is fixed on the inner wall of the cone-shaped inner cylinder.

[0007] In the spandex degassing device of the present invention, a support plate is installed above the baffle, the bottom of the cylindrical cavity is located on the support plate, and each of the liquid distribution tubes is fixed on the support plate , And the outlet of each pipette extends out of the support plate.

[0008] In the spandex defoaming device of the present invention, a matching thermal insulation jacket is provided on the outer wall of the cone-shaped inner cylinder.

[0009] In the spandex defoaming device of the present invention, at the lower end of the liquid inlet, a plurality of liquid distribution tubes are connected through a cylindrical cavity, and a baffle tube is installed below the liquid distribution tube, and the baffle tube is composed of a plurality of upper and lower openings. The truncated cone cavity is connected in the vertical direction, and the outlet of the liquid distributor of each liquid distributor corresponds to the position of the inner wall of the top of the baffle tube. When in use, the spandex stock solution is injected from the liquid inlet, and the spandex stock solution passes through the cylindrical cavity and the distributor in turn. The liquid pipe flows to the baffle tube, and then repeatedly folds back along the baffle tube and flows out, thereby increasing the defoaming area of the spandex stock solution and improving the effect of spandex defoaming. Even if a large amount of continuous spandex stock solution defoaming treatment is required, it is still It can ensure a good defoaming effect.

Description of the drawings

[0010] FIG. 1 is a front cross-sectional view of the spandex defoaming device of the present invention.

Detailed ways

[0011] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[0012] Referring to FIG. 1, the spandex degassing device of this embodiment includes a cone-shaped inner cylinder 1. The upper and lower ends of which are respectively installed with a liquid inlet 2 and a liquid outlet 7, and the lower end of the liquid inlet 2 and The inlet of the cylindrical cavity 3 is welded, and the four evenly distributed outlets of the cylindrical cavity 3 are respectively welded with a dispensing tube 4, and one is installed on the inner wall of the cone-shaped inner cylinder 1 in the horizontal direction below the cylindrical cavity 3 The support plate 8, the bottom of the cylindrical cavity 3 is located at the support plate 8±, each dispensing tube 4 is fixed on the support plate 8, and each dispensing tube outlet 4a extends out of the support plate 8, and the support plate 8 is installed below The baffle tube 5 is composed of six truncated cone cavities with upper and lower openings welded in the vertical direction, and the wide bottom edge of each truncated cone cavity is welded and fixed on the inner wall of the cone-shaped inner tube 1, each The dispensing tube outlet 4a of the dispensing tube 4 corresponds to the position of the inner wall of the top of the baffle tube 5. In order to increase the thermal insulation performance of the spandex defoaming device, when a matching thermal insulation jacket 6o is laid on the outer wall of the cone-shaped inner cylinder 1, the spandex stock solution is injected from the liquid inlet 2, and the spandex stock solution passes through the cylindrical cavity 3 and the dispensing tube 4 in turn Flow to the baffle tube 5±, and then repeatedly turn back along the baffle tube 5 for six times, and then flow out through the liquid outlet 7.

[0013] The above embodiments are only a description of the preferred embodiments of the present invention, but do not limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art have made the technical solutions of the present invention. Various modifications and improvements should fall within the protection scope determined by the claims of the present invention.