Polyethylene fiber spinning and drying cabinet

Abstract

The utility model discloses a polyethylene fiber spinning drying box, including the box, the box below is arranged with the air intake of vertical upward blowing, be provided with two rows of parallel godets in the box, and the godet of two rows is misaligned arrangement, and the fiber is staggered and laid along the godet roll surface, is set up with the silk inlet and the silk outlet respectively in the both side walls of the box, and the free rotation silk roller and the silk roller of silk inlet and silk outlet are set up respectively in the box corresponding to, the upper space of godet is covered with the hot air circulation and the pollution prevention double system cover of the box, the utility model discloses the hot air circulation and the pollution prevention double system make the condensate and oil agent not condense and drop on the fiber in the box on the top of the box, prevent the fiber pollution completely.

Description

Technical Field

[0001] This utility model relates to polyethylene fiber production equipment, and more particularly to a fiber heating and drying device. Background Technology

[0002] Polyethylene fiber is made from ultra-high molecular weight polyethylene (UHMWPE) as raw material. After dissolving it in a first solvent (mineral oil) to form a uniform spinning solution, the final product is obtained through processes such as filtration, spinning, extraction, drying, and hot drawing. The extraction process involves using a solvent (alkanes, alcohols, halogenated hydrocarbons, or aromatic hydrocarbons) to extract the first solvent contained in the fiber. After extraction, a large amount of solvent remains on the spun fiber bundle, necessitating drying in a drying oven. Currently used drying ovens consist of a chamber, heating device, fan, and heat exchanger. The main problems are: condensate and oil condense at the top of the chamber and drip onto the fibers inside, completely preventing fiber contamination. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a polyethylene fiber spinning and drying method that prevents condensation and oil from condensing and dripping onto the fibers inside the box, causing secondary contamination of the fibers.

[0004] To solve the above-mentioned technical problems, this utility model provides a polyethylene fiber spinning drying box, including a box body with vertically upward air inlets arranged at the bottom of the box body; two rows of parallel guide rollers are arranged inside the box body, the two rows of guide rollers are staggered, and the fibers are laid up and down alternately along the roller surface of the guide rollers; inlet and outlet are respectively opened on the side walls of the box body; and freely rotatable inlet rollers and outlet rollers are respectively provided inside the box body corresponding to the inlet and outlet; the box body is also equipped with a hot air circulation and anti-pollution dual system to cover the upper space of the guide rollers.

[0005] Furthermore, the hot air circulation and anti-pollution dual system includes: multiple air inlets located at the bottom of the housing and an air return port located at the top of the housing, the air return port being connected to a conical cover.

[0006] Furthermore, the hot air circulation and anti-pollution dual system also includes a conical hood with air distribution holes, and the bottom of the hood is connected to the cover.

[0007] Furthermore, the hot air circulation and anti-pollution dual system also includes a return air perforation plate, which is connected to the bottom of the cover. Hot air from the guide roller enters the return air inlet through the return air perforation plate.

[0008] Furthermore, the lower side of the hot air circulation and anti-pollution dual system is provided with a collection tank for collecting the condensate and oil flowing down the inner wall due to their own weight. Each oil collection tank is provided with a discharge port, and multiple discharge ports converge into the oil collection pipe to discharge outside the box.

[0009] Furthermore, both the return air vent and the air inlet are provided in multiples, with corresponding openings in the vertical direction.

[0010] Furthermore, an air inlet plate is provided at the bottom of the housing, positioned between the air inlet and the guide roller along the direction of hot air flow.

[0011] Furthermore, the oil collection pipe is inclined to facilitate the discharge of condensate and oil.

[0012] The technical advantage of this invention lies in its dual system of hot air circulation and anti-contamination, which covers the upper space of the guide roller within the housing. This system provides both hot air circulation and contamination prevention. Hot air enters the housing evenly through four air inlets at the bottom and a bottom perforated plate, blowing vertically upwards towards the yarn bundle. It is then exhausted outside the housing through four return air inlets at the top (connected to the air inlets), a return air perforated plate, a cover, and the housing itself. The corresponding arrangement of multiple return air inlets and air inlets ensures consistent airflow throughout the housing.

[0013] The condensate and oil collection system operates as follows: Condensate and oil formed during the hot air drying of the fiber bundles adhere to the surface of the cover and housing. The condensate and oil flow under gravity into the oil collection tank 7 below. Each oil collection tank is equipped with a drain outlet, and multiple outlets converge into an inclined oil collection pipe for easy discharge outside the chamber. A drain valve is installed on the outside of the oil collection pipe, and the collected condensate and oil are discharged into the sewage pipe. Therefore, the dual system of hot air circulation and anti-contamination prevents condensate and oil from condensing and dripping onto the fibers inside the chamber, completely preventing fiber contamination. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the polyethylene fiber spinning drying box of this utility model. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1 As shown, this utility model discloses a polyethylene fiber spinning drying box, including a box body 1, with vertically upward air inlets 11 arranged at the bottom of the box body 1; two rows of parallel guide rollers 12 are arranged inside the box body 1, with the two rows of guide rollers 12 staggered, and the fibers are laid up and down along the roller surface of the guide rollers 12, increasing the contact area with hot air and improving drying efficiency. Inlet and outlet are respectively opened on the side walls of the box body 1, and freely rotatable inlet rollers 12 and outlet rollers 14 are respectively provided inside the box body 1 corresponding to the inlet and outlet; the box body 1 also has a hot air circulation and anti-pollution dual system 15 covering the upper space of the guide rollers 12.

[0020] The hot air circulation and anti-pollution dual system 15 includes: multiple air inlets 11 located at the bottom of the housing 11 and a return air inlet 4 located at the top of the housing 1, the return air inlet 4 being connected to a conical cover 5.

[0021] The dual system for hot air circulation and pollution prevention also includes a conical hood 6 with air distribution holes, the bottom of which is connected to the cover 5. The dual system 15 for hot air circulation and pollution prevention also includes a return air vent plate 3, which is located below the hood 6.

[0022] The lower side of the hot air circulation and anti-pollution dual system 15 is equipped with a collection tank 7 for collecting condensate and oil flowing from the inner wall due to its own weight. Each oil collection tank is equipped with a discharge port 8. Multiple discharge ports converge into the oil collection pipe 9 and discharge it outside the box. The oil collection pipe 9 is equipped with a discharge valve 10 outside the box. The collected condensate and oil are discharged into the sewage pipe through the pipe.

[0023] The technical advantage of this utility model's polyethylene fiber spinning drying box is that: the box body 1 of this utility model is equipped with a dual system of hot air circulation and anti-pollution covering the upper space of the guide roller 12, which has the dual functions of hot air circulation and anti-pollution, specifically including the following:

[0024] The hot air circulation process is as follows: Hot air enters the housing 1 evenly through four air inlets 11 at the bottom and the bottom perforated plate 2, blowing vertically upwards towards the filament bundle, and then exits the housing through four return air inlets 4 at the top, which are connected to the openings of the air inlets 11, the return air perforated plate 3, the cover 5, and the cover body 6. The multiple return air inlets 4 and air inlets 11 of the hot air circulation and anti-pollution dual system are correspondingly set to ensure that the air velocity in all parts of the housing is consistent.

[0025] II. The working process of the condensate and oil collection system is as follows: Condensate and oil formed during the hot air drying of the fiber bundle adhere to the surfaces of the cover 5 and the cover body 6. Because both the cover 5 and the cover body 6 are conical structures, the condensate and oil will flow down into the oil collection tank 7 below by their own weight. Each oil collection tank 7 is equipped with a discharge port 8, and the oil collection pipe 9 is set at a certain angle. Multiple discharge ports 8 converge into the inclined oil collection pipe 9, facilitating discharge to the outside of the box body 1. The oil collection pipe 9 is equipped with a discharge valve 10. The collected condensate and oil are discharged into the sewage pipe through a pipeline. Therefore, the hot air circulation and anti-pollution dual system prevents condensate and oil from condensing and dripping onto the fibers inside the box body 1, thus completely preventing fiber contamination.

[0026] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A polyethylene fiber spinning drying box, comprising a box body, characterized in that, The box has vertically upward air inlets at the bottom; the box has two rows of parallel guide rollers arranged in a staggered manner, with fibers laid alternately along the roller surfaces; the box has inlet and outlet ports on both side walls; and the box has freely rotating inlet and outlet rollers corresponding to the inlet and outlet ports; the box also has a hot air circulation and anti-pollution dual system covering the upper space of the guide rollers.

2. The polyethylene fiber spinning drying oven according to claim 1, characterized in that, The hot air circulation and anti-pollution dual system includes: multiple air inlets located at the bottom of the housing and an air return port located at the top of the housing, the air return port being connected to a conical cover.

3. The polyethylene fiber spinning drying oven according to claim 2, characterized in that, The hot air circulation and anti-pollution dual system also includes a conical hood with air distribution holes, and the bottom of the hood is connected to the cover.

4. The polyethylene fiber spinning drying oven according to claim 3, characterized in that, The hot air circulation and anti-pollution dual system also includes a return air perforation plate, which is connected to the bottom of the cover. Hot air from the guide roller enters the return air inlet through the return air perforation plate.

5. The polyethylene fiber spinning drying oven according to claim 1 or 3, characterized in that, The lower side of the hot air circulation and anti-pollution dual system is equipped with a collection tank for collecting the condensate and oil flowing down the inner wall due to their own weight. Each oil collection tank is equipped with a discharge port, and multiple discharge ports converge into the oil collection pipe to discharge the oil outside the box.

6. The polyethylene fiber spinning drying oven according to claim 2, characterized in that, The return air vent and the air inlet are both provided in multiple ways and are arranged with corresponding openings in the vertical direction.

7. The polyethylene fiber spinning drying oven according to claim 2, characterized in that, An air inlet plate is provided at the bottom of the housing, positioned between the air inlet and the guide roller along the direction of hot air flow.

8. The polyethylene fiber spinning drying oven according to claim 5, characterized in that, The oil collection pipe is inclined to facilitate the discharge of condensate and oil.

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