A continuous defoaming device for high-efficiency meta-aramid stock solution

Abstract

The application discloses a kind of continuous defoaming devices of high-efficiency meta-aramid stock solution, including the upper defoaming tower body and the lower defoaming tower body of the vertebra structure mutual sleeve connection, defoaming gap is equipped between the upper defoaming tower body and the lower defoaming tower body, and the outer part of the upper defoaming tower body and the lower defoaming tower body is fixedly installed with first feed pipe and second feed pipe respectively close to top end, and a plurality of distributors are fixedly installed with the communication thereof on first feed pipe and second feed pipe, and the inner chamber of upper defoaming tower body and lower defoaming tower body is communicated with distributor, and the outer wall of lower defoaming tower body is fixed with jacket, hot water cavity is equipped in the inside of jacket, hot water inlet is communicated with the bottom end side of hot water cavity of jacket, and hot water outlet is communicated with the top end side of hot water cavity of jacket.The application, by being designed as the double-cone structure of upper defoaming tower body and lower defoaming tower body in defoaming tower, can increase the defoaming amount of stock solution by one time, greatly improve efficiency, and reduce floor area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of defoaming tower, in particular to a continuous defoaming device for high-efficiency meta-aramid dope. BACKGROUND

[0002] In the preparation process of various chemical fiber dopes, air is inevitably mixed in, and the air exists in the dope in the form of bubbles. The existence of bubbles will cause difficulties in spinning, increase the number of broken ends and lint, and deteriorate the performance of the product. Therefore, the dope must be subjected to a defoaming process before spinning to remove the bubbles. Defoaming is generally carried out in two ways, i.e. static defoaming and continuous defoaming.

[0003] The existing continuous defoaming device is a vacuum continuous defoaming tower. The dope flows down along the conical surface in the defoaming tower under vacuum, and the bubbles are removed during the flow process. The vacuum defoaming tower is a single cone, which has a large relative floor area, a small flow capacity, and low efficiency. SUMMARY

[0004] The present application aims to provide a continuous defoaming device for high-efficiency meta-aramid dope to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a continuous defoaming device for high-efficiency meta-aramid dope, comprising an upper defoaming tower body and a lower defoaming tower body, both of which are designed as hollow cones, the lower defoaming tower body is fixedly installed outside the upper defoaming tower body and encloses the bottom end of the upper defoaming tower body inside, a defoaming gap is arranged between the upper defoaming tower body and the lower defoaming tower body, first and second feeding pipes are fixedly installed outside the upper defoaming tower body and the lower defoaming tower body near the top end, respectively, a first aramid dope inlet and a second aramid dope inlet are arranged at the ends of the first and second feeding pipes, respectively, a plurality of distributors are fixedly installed on the first and second feeding pipes and communicate with the first and second feeding pipes, respectively, the inner cavities of the upper defoaming tower body and the lower defoaming tower body communicate with the distributors, a jacket is fixed to the outer wall of the lower defoaming tower body, a hot water cavity is arranged inside the jacket, a hot water inlet is arranged on one side of the bottom end of the hot water cavity and communicates with the jacket, and a hot water outlet is arranged on one side of the top end of the hot water cavity and communicates with the jacket.

[0006] Preferably, the bottom end of each of the upper defoaming tower body and the lower defoaming tower body is provided with a discharge port, and the discharge port of the lower defoaming tower body is located directly below the discharge port of the upper defoaming tower body.

[0007] Preferably, the distributor comprises a distribution pipe and a connecting flange, the upper defoaming tower body and the lower defoaming tower body communicate with the distribution pipe, and the distribution pipe is connected to the corresponding first and second feeding pipes through the connecting flange.

[0008] Preferably, the top end of the upper defoaming tower body is provided with an exhaust port.

[0009] Preferably, the top end of the upper defoaming tower body is provided with a sight glass mounting port.

[0010] Preferably, the bottom end of the lower defoaming tower body is provided with an instrument mounting port.

[0011] In summary, the technical effects and advantages of the present application are:

[0012] Compared with the conventional defoaming tower, in the present application, under the condition of the same land area, by designing the defoaming tower as a double-cone structure of the upper defoaming tower body and the lower defoaming tower body, the defoaming amount of the raw liquid can be doubled, the efficiency is greatly improved, and the required land area for production is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0014] Figure 1 FIG. 1 is a structural schematic diagram of a high-efficiency continuous defoaming device for meta-aramid raw liquid in an embodiment of the present application;

[0015] Figure 2 FIG. 2 is a structural schematic diagram of a high-efficiency continuous defoaming device for meta-aramid raw liquid in an embodiment of the present application; Figure 1 FIG. 3 is an enlarged structural schematic diagram of A.

[0016] In the figure: 1, upper defoaming tower body; 2, lower defoaming tower body; 3, hot water cavity; 4, hot water inlet; 5, defoaming gap; 6, hot water outlet; 7, first material conveying pipe; 8, second material conveying pipe; 9, first aramid raw liquid inlet; 10, second aramid raw liquid inlet; 11, distributor; 12, distribution pipe; 13, connecting flange; 14, exhaust port; 15, sight glass mounting port; 16, instrument mounting port; 17, discharge port. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] In the description of the present disclosure, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] It should also be noted that the standard parts used in the present application can be purchased from the market, and can be ordered according to the description and drawings. Unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances, and unless explicitly limited, the mechanical, parts and equipment can use the conventional model in the prior art.

[0020] In this paper, the term "including" is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "including" do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0021] Embodiment: Reference Figures 1-2The illustrated continuous defoaming device for high-efficiency meta-aramid stock solution includes an upper defoaming tower body 1 and a lower defoaming tower body 2, both of which are designed as hollow cones, the lower defoaming tower body 2 is fixedly installed outside the upper defoaming tower body 1 and encloses the bottom end of the upper defoaming tower body 1 inside, the double-cone defoaming design improves the defoaming efficiency, a defoaming gap 5 is arranged between the upper defoaming tower body 1 and the lower defoaming tower body 2, the outer part of the upper defoaming tower body 1 and the lower defoaming tower body 2 near the top end is fixedly installed with a first feeding pipe 7 and a second feeding pipe 8 respectively, the end of the first feeding pipe 7 and the second feeding pipe 8 is respectively provided with a first aramid stock solution inlet 9 and a second aramid stock solution inlet 10, a plurality of distributors 11 in communication with the first feeding pipe 7 and the second feeding pipe 8 are fixedly installed on the first feeding pipe 7 and the second feeding pipe 8, the inner cavities of the upper defoaming tower body 1 and the lower defoaming tower body 2 are in communication with the distributors 11, a jacket is fixed to the outer wall of the lower defoaming tower body 2, a hot water cavity 3 is arranged in the jacket, a hot water inlet 4 is communicated with the bottom end of the hot water cavity 3 on one side of the jacket, and a hot water outlet 6 is communicated with the top end of the hot water cavity 3 on the other side of the jacket, and the hot water is used to heat the meta-aramid stock solution to defoam.

[0022] By the above structure: the bottom end of the upper defoaming tower body 1 and the lower defoaming tower body 2 is provided with a discharge port 17, the discharge port of the lower defoaming tower body 2 is located directly below the discharge port of the upper defoaming tower body 1 to facilitate discharging.

[0023] By the above structure: the distributor 11 includes a distribution pipe 12 and a connecting flange 13, the upper defoaming tower body 1 and the lower defoaming tower body 2 are in communication with the distribution pipe 12, and the distribution pipe 12 is connected to the corresponding first feeding pipe 7 and second feeding pipe 8 through the connecting flange 13.

[0024] By the above structure: the top center of the upper defoaming tower body 1 is provided with an exhaust port 14 to facilitate the discharge of the defoamed gas.

[0025] By the above structure: the top end of the upper defoaming tower body 1 is provided with a viewing mirror mounting port 15 to facilitate the installation of a viewing mirror to observe the defoaming condition inside.

[0026] By the above structure: one side of the bottom end of the lower defoaming tower body 2 is provided with an instrument mounting port 16 to facilitate the installation of related instruments for monitoring the meta-aramid stock solution, such as temperature sensors, etc.

[0027] The working principle of the embodiment is as follows: the pump body extracts meta-aramid stock solution, and the stock solution is injected into the first feeding pipe 7 and the second feeding pipe 8 at the first aramid stock solution feeding port 9 and the second aramid stock solution feeding port 10, and is sent into the inside of the upper defoaming tower body 1 and the lower defoaming tower body 2 through the corresponding distributor 11, and slides down along the cone of the upper defoaming tower body 1 and the lower defoaming tower body 2, and the pump body sends hot water from the hot water inlet 4 into the hot water cavity, and the heat is transferred to the meta-aramid stock solution, so that the consistency of the meta-aramid stock solution sliding down the upper defoaming tower body 1 and the lower defoaming tower body 2 is reduced, the viscosity is changed, the foam is broken, air is discharged through the upper air outlet 14, continuous defoaming can be carried out, and the defoamed meta-aramid liquid is discharged from the bottom treatment port 17. Compared with the traditional defoaming tower, under the condition of the same land area, the defoaming amount of the stock solution can be doubled by designing the defoaming tower as a double-cone structure of the upper defoaming tower body and the lower defoaming tower body, the efficiency is greatly improved, and the land area required for production is reduced.

[0028] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A continuous defoaming device for high-performance meta-aramid dope, characterized in that: The utility model relates to a kind of double-layered defoaming tower, including upper defoaming tower body (1) and lower defoaming tower body (2), the upper defoaming tower body (1) and lower defoaming tower body (2) are hollow cone design, the lower defoaming tower body (2) is fixedly installed in the outside of upper defoaming tower body (1) and the bottom end of upper defoaming tower body (1) is enclosed in its inside, defoaming gap (5) is equipped between the upper defoaming tower body (1) and lower defoaming tower body (2), the outer portion of the upper defoaming tower body (1) and lower defoaming tower body (2) close to top end is respectively fixedly installed with first feed pipe (7) and second feed pipe (8), the end portion of first feed pipe (7) and second feed pipe (8) is respectively provided with first aramid solution inlet (9) and second aramid solution inlet (10), first feed pipe (7) and second feed pipe (8) are all installed fixed with several distributors (11) communicated with it, the inner chamber of the upper defoaming tower body (1) and lower defoaming tower body (2) is communicated with distributor (11), the outer wall of lower defoaming tower body (2) is fixed with jacket, hot water cavity (3) is located in the inside of the jacket, hot water inlet (4) is communicated with in the bottom end side of hot water cavity (3) of the jacket, hot water outlet (6) is communicated with in the top end side of hot water cavity (3) of the jacket, the bottom end of the upper defoaming tower body (1) and lower defoaming tower body (2) is equipped with discharge port (17), the discharge port of lower defoaming tower body (2) is located in the bottom end discharge port of upper defoaming tower body (1) directly below, distributor (11) includes distribution pipe (12) and connecting flange (13), the upper defoaming tower body (1) and lower defoaming tower body (2) are communicated with distribution pipe (12), distribution pipe (12) is accessed into corresponding first feed pipe (7) and second feed pipe (8) by connecting flange (13), the top end center of the upper defoaming tower body (1) is equipped with exhaust port (14), the top end of the upper defoaming tower body (1) is equipped with sight mirror mounting port (15), the bottom end side of the lower defoaming tower body (2) is equipped with instrument mounting port (16).

Images