Device for uniformly baking each layer of glass fiber yarn roll in drying furnace

Abstract

The utility model relates to the technical field of drying ovens, in particular to a device for evenly drying all layers of glass fiber yarn balls in a drying oven. Comprising a drying furnace, a wet base yarn winding vehicle, a heat exchanger, an inclined plane flow guide plate and a mounting assembly, and the inclined plane flow guide plate and the horizontal plane of the bottom in a single area of the drying furnace form a 30-degree angle after being mounted through the mounting assembly. Original wind direction is changed from top downward all vertical wind direction to lower part 30-degree inclined wind direction, hot wind direction diversion is carried out, wind direction on one side of a wall corner of a furnace body which does not need too much hot wind originally is directly guided to the lower layer of a yarn vehicle which needs too much hot wind, hot wind loss is reduced, and therefore the situation that a heat exchanger of a single area of the drying furnace is insufficient in heat exchange capacity can be avoided. The problem that the film forming time of a lower-layer product of a yarn vehicle is short due to the fact that the film forming time is short is solved, potential quality hazards of baked products are reduced, the product baking effect is improved, and the product quality stability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of drying oven technology, and in particular to a device for evenly drying each layer of fiberglass yarn in a drying oven. Background Technology

[0002] In the industrial production of glass fiber, after the glass fiber is drawn into a wet yarn ball, it needs to be dried into a dry yarn ball before the subsequent packaging and winding processes can be carried out normally. During the drying process, the existing single-zone natural gas or steam heat exchangers are often limited by the compact main space (the more compact the main space, the more concentrated the heat), and generally some heat exchangers with smaller volume and lower power are selected.

[0003] When drying products with heavy wet yarn bundles and short drying times in single-zone natural gas or single-zone steam heat exchanger drying ovens, the high moisture content of the wet base and frequent opening of the oven door allow a large amount of cold air to enter. The heat generated by the single-zone heat exchanger may not have enough time to recover its temperature. According to the laws of physics, heated air expands and rises, while cooled air sinks to the bottom. This results in the lower layer of dried yarn bundles having a shorter film formation time than the upper layer, causing the product quality to fail to meet the process requirements and posing potential quality risks. Utility Model Content

[0004] The purpose of this invention is to provide a device for evenly drying each layer of fiberglass yarn in a drying oven. This device avoids the problem of insufficient heat exchange capacity of the heat exchanger in a single zone of the drying oven, which leads to a short film formation time for the lower layer of the yarn. It helps to reduce potential quality problems of the dried products, improve the drying effect, and enhance the quality stability of the products.

[0005] To achieve the above objectives, this utility model provides a device for evenly drying each layer of fiberglass yarn in a drying oven, including a drying oven, a wet base yarn trolley is provided on one side of the drying oven, and a circulating fan downward air duct and a dehumidifying fan working air duct are provided in a single zone inside the drying oven.

[0006] The drying oven is also equipped with a heat exchanger;

[0007] It also includes a sloping guide plate and an installation assembly. After the sloping guide plate is installed by the installation assembly, it forms a 30° angle with the bottom horizontal plane of the single zone of the drying oven. The sloping guide plate forms a sloping air duct after it is set. The installation assembly is set below the sloping guide plate.

[0008] The size of the inclined guide plate can be set according to the different single-zone sizes of the drying oven.

[0009] The installation assembly includes a 30° base, a connecting block, and a limiting member. The 30° base is detachably installed on the inner bottom of a single zone of the drying oven. The connecting block is integrally formed with the inclined guide plate and is provided with an insertion hole. The limiting member is located on the side of the 30° base near the connecting block.

[0010] The limiting component includes a pin and a retaining ring. The pin is T-shaped and can be inserted into the insertion hole of the connecting block and the through hole of the 30° base, respectively. The retaining ring is installed on the pin and abuts against the 30° base.

[0011] The contact surfaces around the inclined guide plate are all sealed with high-temperature flame-retardant sealant.

[0012] This invention relates to a device for evenly drying layers of fiberglass yarn in a drying oven. By setting up inclined guide plates inside a single zone of the drying oven, the heat generated by the heat exchanger can be maximized. The original vertical airflow direction from top to bottom is changed to a 30° inclined airflow direction at the bottom, which guides the hot air flow. The airflow from the corner of the oven wall, which does not require much hot air, is directly directed to the lower layer of the yarn cart that requires more hot air, reducing heat loss. This avoids the problem of insufficient heat exchange capacity of the heat exchanger in the single zone of the drying oven, which leads to a short film formation time for the products on the lower layer of the yarn cart. This helps to reduce the quality risks of the dried products, improve the drying effect, and enhance the quality stability of the products. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the device for evenly drying each layer of fiberglass yarn in a drying oven according to this utility model.

[0015] Figure 2 This is a schematic diagram of the installation of the inclined guide plate of this utility model.

[0016] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle.

[0017] In the diagram: 101-Drying oven, 102-Wet yarn bobbin spinning cart, 103-Circulating fan working duct, 104-Dehumidifying fan working duct, 105-Heat exchanger, 106-Sloping guide plate, 107-Sloping guide duct, 108-30° base, 109-Connecting block, 110-Pin, 111-Snap ring. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of a device for evenly drying layers of fiberglass yarn in a drying oven. Figure 2 This is a schematic diagram of the installation of the inclined guide vane 106. Figure 3 yes Figure 2 The enlarged view at point A shows that this invention provides a device for evenly drying layers of fiberglass yarn in a drying oven. The device includes a drying oven 101, a wet-base yarn spool cart 102, a heat exchanger 105, an inclined guide plate 106, and an installation assembly. The installation assembly includes a 30° base 108, a connecting block 109, and a limiting component, which includes a pin 110 and a retaining spring 111. This design avoids the problem of insufficient heat exchange capacity in a single zone of the drying oven 101, which leads to a short film-forming time for the lower layer of the yarn on the cart. This helps reduce potential quality issues in the dried product, improves the drying effect, and enhances the product's quality stability. It is understood that this design can reduce potential quality issues in the dried product, improve the drying effect, and enhance the product's quality stability.

[0020] In this embodiment, a wet yarn bobbin spinning machine 102 is provided on one side of the drying oven 101.

[0021] The drying oven 101 is equipped with a circulating fan working downdraft duct 103 and a dehumidifying fan working duct 104 in a single zone inside the oven. The circulating fan working downdraft duct 103 is used to assist the circulating fan in operation, and the dehumidifying fan working duct 104 is used to assist the dehumidifying fan in operation.

[0022] The drying oven 101 is also equipped with a heat exchanger 105. The heat exchanger 105 can be a natural gas heat exchanger or a steam heat exchanger.

[0023] The system also includes a sloping guide plate 106 and an installation assembly. After installation via the installation assembly, the sloping guide plate 106 forms a 30° angle with the bottom horizontal plane of a single zone within the drying oven 101, creating a sloping airflow duct 107. The installation assembly is positioned below the sloping guide plate 106. This structure maximizes the heat generated by the heat exchanger 105 and directly transforms the original vertical airflow from top to bottom into a 30° angled airflow at the bottom, guiding the hot air flow. This allows the airflow from the corner of the oven wall, which doesn't require much hot air, to be directly directed to the lower layer of the yarn cart, where more hot air is needed, reducing heat loss. The installation assembly facilitates the installation and replacement of the sloping guide plate 106.

[0024] Secondly, the dimensions of the inclined guide plate 106 can be set according to the different single-zone dimensions of the drying oven 101. This setting facilitates adjusting the dimensions of the inclined guide plate 106 according to different usage environments, thereby improving practicality.

[0025] Then, the 30° base 108 is detachably installed on the inner bottom of a single zone of the drying oven 101; the connecting block 109 is integrally formed with the inclined guide plate 106 and is provided with an insertion hole; the limiting member is provided on the side of the 30° base 108 near the connecting block 109. The 30° base 108 can be fixed by anchor bolts, the connecting block 109 is integrally formed on the inclined guide plate 106 and is provided with an insertion hole for installation, and the limiting member is used to prevent the connecting block 109 from detaching from the 30° base 108.

[0026] Furthermore, the pin 110 is T-shaped and can be inserted into the insertion hole of the connecting block 109 and the through hole of the 30° base 108, respectively; the retaining ring 111 is mounted on the pin 110 and abuts against the 30° base 108. The pin 110 can be directly inserted into the through hole of the 30° base 108 and the insertion hole of the connecting block 109, and then a mounting groove is provided on the end of the pin 110 away from the limiting disc to facilitate the direct installation of the retaining ring 111.

[0027] Finally, all four contact surfaces of the inclined guide plate 106 are sealed with high-temperature flame-retardant sealant. This sealing structure facilitates future maintenance. Additionally, the surface of the inclined guide plate 106 is coated with a silicon carbide coating to improve its heat resistance.

[0028] This invention avoids the problem of insufficient heat exchange capacity of the heat exchanger 105 in a single zone of the drying oven, resulting in a short film-forming time for products on the lower layer of the yarn cart. It helps reduce potential quality issues in the dried products, improves the drying effect, and enhances product quality stability. By setting up the inclined guide plate 106 inside the single zone of the drying oven 101, this application maximizes the heat generated by the heat exchanger 105 and directly transforms the original vertical airflow from top to bottom into a 30° angled airflow at the bottom. This guides the hot air flow, directing the airflow from the corner of the oven wall, where less hot air is needed, directly to the lower layer of the yarn cart where more hot air is required, thus reducing heat loss. Meanwhile, multiple inclined guide plates 106 can be used to guide the hot air flow in the single zone of the drying oven 101 that requires more heat, so as to achieve simultaneous heating of the first to fourth layers of the yarn carriage. Furthermore, the inclined guide plates 106 can also achieve uniform drying of each layer of raw yarn, without the need to replace the high-power heat exchangers 105 in batches or add additional hot air generating equipment, thus achieving efficiency improvement and cost reduction. This can avoid the problem of insufficient heat exchange capacity of the heat exchangers 105 in a single zone of the drying oven 101, which leads to a short film formation time for the lower layer of the yarn carriage. This helps to reduce the quality risks of the dried products, improve the drying effect, and enhance the quality stability of the products.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An apparatus for uniformly drying layers of fiberglass yarn in a drying oven, comprising a drying oven, wherein a wet-base yarn spool cart is provided on one side of the drying oven, characterized in that: The drying oven is equipped with a circulating fan working downflow duct and a dehumidifying fan working duct in a single zone inside the oven. The drying oven is also equipped with a heat exchanger; It also includes a sloping guide plate and an installation assembly. After the sloping guide plate is installed by the installation assembly, it forms a 30° angle with the bottom horizontal plane of the single zone of the drying oven. The sloping guide plate forms a sloping air duct after it is set. The installation assembly is set below the sloping guide plate.

2. The apparatus for uniformly drying each layer of fiberglass yarn in a drying oven as described in claim 1, characterized in that: The dimensions of the inclined guide plate can be set according to the different single-zone dimensions of the drying oven.

3. The apparatus for uniformly drying each layer of fiberglass yarn in a drying oven as described in claim 1, characterized in that: The installation assembly includes a 30° base, a connecting block, and a limiting member. The 30° base is detachably installed on the inner bottom of a single zone of the drying oven. The connecting block is integrally formed with the inclined guide plate and is provided with an insertion hole. The limiting member is located on the side of the 30° base near the connecting block.

4. The apparatus for uniformly drying each layer of fiberglass yarn in a drying oven as described in claim 3, characterized in that: The limiting component includes a pin and a retaining ring. The pin is T-shaped and can be inserted into the insertion hole of the connecting block and the through hole of the 30° base, respectively. The retaining ring is installed on the pin and abuts against the 30° base.

5. The apparatus for uniformly drying each layer of fiberglass yarn in a drying oven as described in claim 1, characterized in that... : The four contact surfaces of the inclined guide plate are all sealed with high-temperature flame-retardant sealant.

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