A sectionalized fiber feeding tank device suitable for viscose staple fiber post-treatment production line

Abstract

The utility model discloses a segmented type fibre feeding groove device suitable for viscose staple fibre post -treatment production line relates to the technical field of chemical fibre equipment. The utility model discloses through to the function area splicing segmented type design of fibre feeding groove, the volume of separate function area greatly reduces, not only has made, transportation, installation, maintenance and maintenance of fibre feeding groove been facilitated, and manufacturing cost, transportation cost, installation cost and maintenance cost have been greatly reduced greatly, the utility model discloses through to the short pipe segmented type design of steam main pipe and steam nozzle, can effectively reduce the steam pressure drop of pipeline, effectively avoid the state of steam pressure and flow in pipeline uneven that the larger pressure drop of too long pipeline causes, greatly improved the steam pressure and steam flow evenness in pipeline, improved and ensured the fibre opening effect, in addition, the utility model still has stable and reliable, safe in using, simplify operation, convenient to use's advantage.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical fiber equipment, and more specifically to a segmented fiber feeding trough device suitable for viscose staple fiber post-processing production lines. Background Technology

[0002] In the production of viscose staple fiber, the final step before finished product is post-processing. Post-processing requires the use of post-processing production line equipment, and the fiber feeding trough is one of the important units in the viscose staple fiber post-processing production line. The main functions of the fiber feeding trough are as follows: First, it distributes the viscose staple fibers cut by the cutter and fed into the feeding area of ​​the fiber feeding trough into a uniform fiber layer via the feed area distributor; second, it loosens the fibers through the evaporation of steam in the heating zone of the fiber feeding trough, while simultaneously carrying away the carbon disulfide in the fibers and allowing it to escape from the exhaust hood; third, it outputs the loosened viscose staple fibers to the long-web refining mill in the post-processing production line via the feed area of ​​the fiber feeding trough. Therefore, the uniformity of the fiber spreading and the fiber loosening effect have a significant impact on subsequent processes such as desulfurization, bleaching, oiling, and drying, and to a certain extent determine the quality of the final viscose staple fiber product.

[0003] In current viscose staple fiber post-processing production lines, the existing fiber feeding troughs have the following structural characteristics: 1. Existing fiber feeding troughs are generally integral shells—that is, the feeding area and heating area of ​​the fiber feeding trough are one unit. This results in an excessively large overall volume of the fiber feeding trough. This not only leads to low material utilization during manufacturing, requiring large equipment for production, and resulting in high production costs, but also presents limitations during transportation and installation, necessitating the use of specialized vehicles and large lifting equipment, and requiring sufficiently large operating space. Therefore, integral fiber feeding troughs suffer from inconvenient operation and high costs during manufacturing, transportation, and installation. 2. In existing fiber feeding troughs, each side of the main steam pipe is a single long pipe. Steam can only enter the same side of the integral long pipe structure from the same inlet. The pressure drop after passing through the long pipe before entering the steam nozzle causes uneven pressure and flow, significantly affecting the fiber opening effect. 3. Currently, each steam nozzle at the bottom of the fiber feeding trough is a single, long pipe structure. Steam can only enter from the same inlet on each nozzle. The pressure drop after the steam passes through the long pipe causes uneven pressure and flow, affecting fiber opening. Furthermore, because the steam nozzles are too long and not fixed, frequent vibrations occur during equipment operation, easily damaging the nozzles and further impacting fiber opening. Therefore, there is an urgent need to improve and refine the current fiber feeding trough, which features a single-piece shell, a single-piece long steam pipe, and single-piece steam nozzles. This will overcome the aforementioned defects, ensure uniform steam pressure and flow in the steam pipeline, improve and guarantee fiber opening, and enhance the convenience and reduce costs during manufacturing, transportation, and installation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a segmented fiber feeding trough device suitable for viscose staple fiber post-processing production lines. This invention, through a segmented design with functional zones, not only facilitates the manufacturing, transportation, installation, maintenance, and upkeep of the fiber feeding trough but also significantly reduces manufacturing, transportation, installation, and maintenance costs. Furthermore, the short-pipe segmented design of the steam main pipe and steam nozzle effectively reduces steam pressure drop in the pipeline, preventing uneven steam pressure and flow caused by excessive pressure drop in long pipelines. This greatly improves the uniformity of steam pressure and flow within the pipeline, enhancing and ensuring the fiber opening effect. In addition, this invention offers advantages such as stability, reliability, safety, simplified operation, and ease of use.

[0005] The objective of this utility model can be achieved through the following measures:

[0006] This utility model discloses a segmented fiber feeding trough device suitable for viscose staple fiber post-processing production lines. The device comprises a fiber feeding trough, a fiber heating trough, and a fiber feeding trough top-mounted trough, all designed with functional zones and connected sequentially using flanges and bolts. The viscose staple fibers, cut by the cutting machine, enter the fiber feeding trough under the influence of water flow and are spread into a uniform fiber layer. In the fiber heating trough, steam causes the fibers to open and release carbon disulfide. Finally, the fibers are output to the long-net refining machine at the subsequent station via the fiber feeding trough top-mounted trough under the combined action of water flow and steam. The fiber feeding trough, heating trough, and top-mounted trough all employ a segmented design and are connected using flanges and bolts. The components are connected sequentially to form a complete and continuous fiber feeding channel. (This utility model uses a segmented design with functional areas spliced ​​together to greatly reduce the volume of individual functional areas. This not only facilitates the manufacturing, transportation, installation, maintenance, and upkeep of the fiber feeding channel, but also significantly reduces manufacturing, transportation, installation, and maintenance costs. Specifically, it greatly improves material utilization and reduces the frequency of use of large equipment during manufacturing; ordinary vehicles and hoisting equipment can be used for transportation and installation, greatly reducing the required operating space; and during maintenance, only the easily damaged or ineffective fiber feeding channel heating areas need to be replaced with new ones.) The fiber feeding channel heating area includes a heating tank (which provides an installation foundation for the steam main pipe and steam nozzle).On the other hand, the heating tank provides a heating chamber where a uniform fiber layer is loosened by steam and carbon disulfide is discharged from the fiber. Two conical exhaust hoods, sequentially fastened to the top of the heating tank (used to collect and discharge the carbon disulfide discharged from the fiber by steam in the heating zone of the fiber feeding tank to an external recycling system), are installed on the front and rear sections of both sides of the heating tank. (This invention uses a short-pipe segmented design for the steam pipes, that is, the steam pipes on both sides are divided into front and rear sections instead of the traditional long pipe structure. In this way, the steam on each side enters the steam pipe from the front and rear inlets respectively, which can effectively reduce the steam pressure drop of the steam pipes.) To avoid the large pressure drop caused by excessively long pipelines, resulting in uneven steam pressure and flow within the pipeline, the uniformity of steam pressure and flow is greatly improved, thus enhancing and ensuring the fiber opening effect. Several parallel, spaced steam nozzles, composed of risers and horizontal short pipes arranged in an L-shape, with closed outlets, are drawn from below each main steam pipe. (This invention employs a segmented short-pipe design for the steam nozzles; instead of the traditional long-pipe structure, the steam nozzles are composed of risers and horizontal short pipes arranged in an L-shape. This allows steam to enter the corresponding short-pipe L-shaped steam nozzle from the corresponding main steam pipe and exit through steam nozzles on the horizontal short pipes.) The horizontal short pipe effectively reduces the steam pressure drop of the steam nozzle, effectively avoiding the uneven steam pressure and flow caused by the large pressure drop of the long pipe, greatly improving the uniformity of steam pressure and flow in the pipe, and improving and ensuring the fiber opening effect. A connecting sleeve is connected to the closed ends of the two opposite steam nozzles in each group and embedded in the U-shaped groove at the bottom of the heating tank (used to quickly fix and limit the closed ends of the horizontal short pipe in the steam nozzle, limiting the height of the closed ends of the horizontal short pipe to prevent frequent vibration of the horizontal short pipe when steam is ejected from the steam nozzle, thus having the advantage of safe use). Two flexible steam baffles are set at the outlet end of the heating tank cavity (one... On the one hand, the flexible steam baffle is used to block gas leakage in the heating tank, reduce heat loss, and lower production costs; on the other hand, the flexible steam baffle will also automatically bend and swing during the process of water flow carrying fiber flow, which does not affect the normal movement of the fiber and does not require manual operation, thus having the advantages of simplified operation and ease of use); the surface of the horizontal short pipe is covered with steam nozzles (steam in the horizontal short pipe is ejected from the steam nozzles to heat the inner cavity of the heating tank and the fibers passing through the inner cavity of the heating tank), and the inlet end of the horizontal short pipe is first inserted into the flange short sleeve extending outward from the bottom of the side wall of the heating tank, and then connected to the flange at the outlet end of the riser (the flange short sleeve is used to quickly fix and limit the inlet end of the horizontal short pipe).In each group of two opposing steam nozzles, the lengths of the horizontal short pipes are unequal. The lengths of the horizontal short pipes in adjacent groups are also unequal and arranged in an alternating pattern (because the surface of the horizontal short pipes is covered with steam nozzles, steam is ejected from these nozzles and dispersed within the heating tank's interior; the alternating arrangement of the horizontal short pipes in all directions makes it easier to ensure the uniformity of steam distribution within the heating tank, further improving and guaranteeing the fiber opening effect); the connecting sleeve is based on a cuboid and water... The structure is formed by machining a cylindrical limiting hole that runs through both the front and rear ends, resulting in an outer square and inner cylindrical shape. (The cylindrical limiting hole is used to quickly fix and limit the closed end of the horizontal short pipe in the steam nozzle, preventing frequent vibration of the horizontal short pipe when steam is ejected from the steam nozzle, thus ensuring safe use. The connecting sleeve is designed with an outer square and inner cylindrical structure, which also facilitates quick insertion into the U-shaped groove at the bottom of the heating tank.) The diameter of the cylindrical limiting hole is larger than the outer diameter of the horizontal short pipe (to facilitate smooth encircling of the closed end of the horizontal short pipe).

[0007] In this invention, each steam nozzle is equipped with an on / off valve on its riser (so that the required number of steam nozzles can be flexibly opened according to the specific steam requirements of different fiber types).

[0008] In this utility model, a support base is provided below the fiber feeding area and the fiber heating area (the support base provides rigid support for the fiber feeding area and the fiber heating area, and also provides the required working height).

[0009] In this utility model, a distributor is arranged in the inner cavity of the fiber feeding area. The top of the distributor is connected to an upwardly extending feeding funnel. Below the distributor, a discharge slope is provided (the viscose short fibers cut by the cutting machine enter the inner cavity of the fiber feeding area through the feeding funnel under the drive of the water flow, and then are spread into a uniform fiber layer by the distributor in the inner cavity of the fiber feeding area. Then, the fiber layer is smoothly fed into the fiber feeding heating area along the discharge slope under the drive of the water flow).

[0010] In this utility model, the rear end face of the fiber feeding network area is provided with a discharge port connected to the long-net refining machine in the subsequent station (the fibers in the inner cavity of the fiber feeding network area are output to the long-net refining machine in the subsequent station through the discharge port under the action of water flow and steam).

[0011] The design principle of this utility model is as follows:

[0012] This utility model adopts two segmented design ideas: that is, this utility model adopts a segmented design of functional area splicing for the fiber feeding groove, and a short pipe segmented design for the steam main pipe and steam nozzle.

[0013] More specifically, this invention features a segmented design for the fiber feeding trough, consisting of a feed area, a heating area, and a wire feeding area connected sequentially using flanges and bolts to form a complete, continuous fiber feeding trough. This significantly reduces the volume of individual functional areas, facilitating manufacturing, transportation, installation, maintenance, and upkeep, while also greatly reducing manufacturing, transportation, installation, and maintenance costs. Specifically, this translates to: significantly improved material utilization and reduced use of large equipment during manufacturing; the ability to utilize ordinary vehicles and hoisting equipment for transportation and installation, greatly minimizing the required operating space; and simplified maintenance, requiring only the replacement of easily damaged or malfunctioning heating areas with new ones.

[0014] This invention further employs a short-pipe segmented design for the steam main pipe and steam nozzle—that is, the steam main pipe in this invention consists of four pipes, which are respectively installed on the front and rear sections of both sides of the heating tank. In other words, the steam main pipes on both sides are divided into front and rear sections instead of the traditional long pipe structure. In this way, the steam on each side enters the steam main pipe from the front and rear inlets respectively, which can effectively reduce the steam pressure drop in the steam main pipe and effectively avoid the uneven steam pressure and flow rate caused by the large pressure drop in the long pipe. This greatly improves the uniformity of steam pressure and flow rate in the pipe, and improves and ensures the fiber opening effect. Meanwhile, the steam nozzle in this invention is assembled from a vertical pipe and horizontal short pipes into an L-shaped structure, rather than a traditional long pipe structure. This allows steam to enter the corresponding short pipe L-shaped steam nozzle from the corresponding steam main pipe and exit through steam nozzles on the horizontal short pipes. The horizontal short pipes effectively reduce the steam pressure drop in the steam nozzles, preventing uneven steam pressure and flow caused by excessive pressure drops in long pipes. This significantly improves the uniformity of steam pressure and flow within the pipes, enhancing and ensuring the fiber opening effect. Furthermore, in this invention, the lengths of the horizontal short pipes in each group of two opposing steam nozzles are unequal, and the lengths of the horizontal short pipes in adjacent groups are also unequal and arranged in an alternating pattern. Since the surface of the horizontal short pipes is covered with steam nozzles, the steam is ejected from these nozzles and distributed throughout the heating tank cavity. The alternating arrangement of the horizontal short pipes further ensures the uniformity of steam distribution within the heating tank cavity, further improving and ensuring the fiber opening effect.

[0015] Furthermore, this invention also features connecting sleeves at the closed ends of the two opposing steam nozzles in each group. These sleeves quickly fix and limit the closed ends of the horizontal short pipes within the steam nozzles, thus limiting the height of the closed ends and preventing frequent vibrations of the horizontal short pipes when steam is ejected from the steam nozzles. This provides advantages of stability, reliability, and safe operation. Additionally, this invention includes two flexible steam baffles at the outlet end of the heating tank. These baffles prevent gas leakage within the heating tank, reducing heat loss and production costs. Furthermore, the flexible baffles automatically bend and oscillate as the water flow carries the fibers, without affecting normal fiber movement or requiring manual operation, thus simplifying operation and providing ease of use.

[0016] The beneficial technical effects of this utility model are as follows:

[0017] This invention, through a segmented design with functional zones in the fiber feeding channel, not only facilitates the manufacturing, transportation, installation, maintenance, and upkeep of the channel, but also significantly reduces manufacturing, transportation, installation, and maintenance costs. Specifically, it greatly improves material utilization and reduces the frequency of using large equipment during manufacturing; ordinary vehicles and hoisting equipment can be used for transportation and installation, significantly reducing the required operating space; and maintenance only requires replacing easily damaged or malfunctioning heating zones with new ones. Furthermore, the short-pipe segmented design of the steam main pipe and steam nozzle effectively reduces steam pressure drop in the pipeline, preventing uneven steam pressure and flow caused by excessive pressure drop in long pipelines, thus greatly improving the uniformity of steam pressure and flow and enhancing and ensuring the fiber opening effect. In addition, this invention also boasts advantages such as stability, reliability, safety, simplified operation, and ease of use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 yes Figure 1 The left view.

[0020] Figure 3 This is a schematic diagram showing the arrangement of the main steam pipe and steam nozzle in the heating zone of the fiber channel.

[0021] Figure 4 yes Figure 3 The D-D sectional view in the diagram.

[0022] Figure 5 yes Figure 4 Enlarged section view of point E in the middle.

[0023] Figure 6 yes Figure 5 F-F section view in the figure.

[0024] Part number descriptions in the diagram: A. Feeding area of ​​the fiber optic trough; A-1. Feeding funnel; A-2. Distributor; A-3. Drop slope; B. Heating area of ​​the fiber optic trough; C. Wire mesh area of ​​the fiber optic trough; C-1. Discharge port; 1. Heating tank; 1-1. Flange short sleeve; 1-2. U-shaped groove at the bottom of the chamber; 2. Conical exhaust hood; 3. Steam main pipe; 4. Steam nozzle; 4-1. Riser; 4-1-1. On / off valve; 4-2. Horizontal short pipe; 5. Connecting pressure sleeve; 5-1. Cylindrical limiting hole; 6. Flexible steam baffle; 7. Support base frame. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-6As shown, this utility model discloses a segmented fiber feeding trough device suitable for viscose staple fiber post-processing production lines. The device comprises a feeding zone A, a heating zone B, and a net feeding zone C, all designed with functional zones joined together. These segments are connected sequentially using flanges and bolts to form a complete and continuous fiber feeding trough. (Viscose staple fibers cut by the cutting machine enter the feeding zone A under the influence of water flow and are spread into a uniform fiber layer. In the heating zone B, steam causes the fibers to open and remove carbon disulfide. Finally, the fibers are output to the long-net refining machine at the subsequent station via the net feeding zone C, driven by water flow and steam.) The feeding zone A, heating zone B, and net feeding zone C are all designed with segmented joints and connected using flanges and bolts. The components are connected sequentially to form a complete and continuous fiber feeding trough. (This utility model uses a segmented design with functional areas to greatly reduce the volume of individual functional areas. This not only facilitates the manufacturing, transportation, installation, maintenance, and upkeep of the fiber feeding trough, but also significantly reduces manufacturing, transportation, installation, and maintenance costs. Specifically, it greatly improves material utilization and reduces the frequency of use of large equipment during manufacturing; ordinary vehicles and hoisting equipment can be used for transportation and installation, greatly reducing the required operating space; and during maintenance, only the easily damaged or ineffective fiber feeding trough heating area B needs to be replaced with a new fiber feeding trough heating area B). The fiber feeding trough heating area B includes a heating tank 1 (on one hand, the heating tank 1 provides the installation foundation for the steam main pipe 3 and the steam nozzle 4).On the other hand, the heating tank 1 provides a heating chamber where a uniform fiber layer is loosened by steam in the heating tank 1, and carbon disulfide is discharged from the fiber. Two conical exhaust hoods 2, which are open at the top of the heating tank, are sequentially fastened together (used to collect and discharge the carbon disulfide discharged from the fiber by steam in the heating zone B of the fiber feeding tank to an external recycling system). Four steam main pipes 3 are installed on the front and rear sections of both sides of the heating tank. (This utility model adopts a short-pipe segmented design for the steam main pipes 3, that is, the steam main pipes 3 on both sides are divided into front and rear sections instead of the traditional long pipe structure. In this way, the steam on each side enters the steam main pipe 3 from the front and rear two inlets, which can effectively reduce the steam pressure drop of the steam main pipe 3 and effectively avoid the large pressure drop of the long pipe.) The pressure drop causes uneven steam pressure and flow rate within the pipeline, greatly improving the uniformity of steam pressure and flow rate, thus enhancing and ensuring the fiber opening effect. Several parallel, spaced steam nozzles 4, composed of risers 4-1 and horizontal short pipes 4-2 forming an L-shape, are drawn from below each main steam pipe 3, with their outlets closed. (This invention employs a segmented short-pipe design for the steam nozzles 4; the steam nozzles 4 are assembled from risers 4-1 and horizontal short pipes 4-2 into an L-shape, rather than a traditional long-pipe structure. This allows steam to enter the corresponding short-pipe L-shaped steam nozzle 4 from the corresponding main steam pipe 3 and exit through steam nozzles on the horizontal short pipes 4-2.) 2. Effectively reduces the steam pressure drop of the steam nozzle 4, effectively avoids the uneven steam pressure and flow rate caused by the large pressure drop of the long pipeline, greatly improves the uniformity of steam pressure and flow rate in the pipeline, and improves and ensures the fiber opening effect. A connecting sleeve 5 is connected to the closed ends of the two opposite steam nozzles 4 in each group and is embedded in the U-shaped groove 1-2 at the bottom of the heating tank 1 (used to quickly fix and limit the closed end of the horizontal short pipe 4-2 in the steam nozzle 4, and to limit the height of the closed end of the horizontal short pipe 4-2 to prevent frequent vibration of the horizontal short pipe 4-2 when steam is ejected from the steam nozzle, which has the advantage of safe use). Two flexible steam baffles 6 are set at the outlet end of the heating tank cavity (on the one hand, flexible...). The flexible steam baffle 6 is used to block gas leakage in the heating tank 1, reduce heat loss, and lower production costs. On the other hand, the flexible steam baffle 6 will also automatically bend and swing during the process of water flow carrying fiber flow, which will not affect the normal movement of the fiber and will not require manual operation, thus having the advantages of simplified operation and convenient use. The surface of the horizontal short pipe 4-2 is covered with steam nozzles (the steam in the horizontal short pipe 4-2 is ejected from the steam nozzles to heat the inner cavity of the heating tank 1 and the fibers passing through the inner cavity of the heating tank). The inlet end of the horizontal short pipe 4-2 is first inserted into the flange short sleeve 1-1 extending outward from the bottom of the side wall of the heating tank, and then connected to the flange at the outlet end of the riser (the flange short sleeve 1-1 is used to quickly fix and limit the inlet end of the horizontal short pipe 4-2).In each group of two opposing steam nozzles 4, the lengths of the horizontal short pipes 4-2 are not equal. The lengths of the horizontal short pipes 4-2 in adjacent groups are also not equal and are arranged in an alternating pattern (because the surface of the horizontal short pipes 4-2 is covered with steam nozzles, steam is ejected from these nozzles and dispersed into the inner cavity of the heating tank 1; the alternating arrangement of the horizontal short pipes 4-2 in all directions makes it easier to ensure the uniformity of steam distribution within the heating tank, improving and guaranteeing the fiber opening effect); the connecting sleeve 5 is based on a cuboid and horizontally machined with a through-hole... The cylindrical limiting hole 5-1 at the front and rear ends forms an outer square inner cylindrical structure (the cylindrical limiting hole 5-1 is used to quickly fix and limit the closed end of the horizontal short pipe 4-2 in the steam nozzle 4, preventing frequent vibration of the horizontal short pipe 4-2 when steam is ejected from the steam nozzle, thus having the advantage of safe use). The connecting sleeve 5 is designed as an outer square inner cylindrical structure, which also facilitates the quick insertion of the connecting sleeve 5 into the U-shaped groove 1-2 at the bottom of the heating tank 1. The diameter of the cylindrical limiting hole 5-1 is larger than the outer diameter of the horizontal short pipe 4-2 (to facilitate smooth encircling of the closed end of the horizontal short pipe 4-2).

[0027] In this invention, each steam nozzle 4 has an on / off valve 4-1 installed on its riser 4-1 (so that the required number of steam nozzles 4 can be flexibly opened according to the specific needs of different fiber types for steam).

[0028] In this utility model, a support base 7 is provided below both the fiber feeding area A and the fiber heating area B (the support base 7 provides rigid support for the fiber feeding area A and the fiber heating area B, and also provides the required working height).

[0029] In this utility model, a distributor A-2 is arranged in the inner cavity of the fiber feeding zone A. The top of the distributor A-2 is connected to an upwardly extending feeding funnel A-1. Below the distributor A-2, a discharge slope A-3 is provided. (The viscose short fibers cut by the cutting machine enter the inner cavity of the fiber feeding zone A through the feeding funnel A-1 under the drive of the water flow, and then spread into a uniform fiber layer by the distributor A-2 in the inner cavity of the fiber feeding zone A. Then, the fiber layer is smoothly fed into the fiber feeding zone B along the discharge slope A-3 under the drive of the water flow.)

[0030] In this utility model, the rear end face of the fiber feeding trough area C is provided with a discharge port C-1 connected to the long-net refining machine in the subsequent station (the fiber in the inner cavity of the fiber feeding trough area C is output to the long-net refining machine in the subsequent station through the discharge port C-1 under the action of water flow and steam).

[0031] The specific usage of this utility model is as follows:

[0032] First, assemble the present invention according to the structural description and the relative positional relationship shown in the attached drawings; then connect the inlet ends of the four steam main pipes 3 installed on the front and rear sections of both sides of the heating tank to the external steam pipeline, connect the feed funnel A-1 to the external feed pipeline, connect the discharge port C-1 to the external discharge pipeline, and flexibly open the required number of steam nozzles 4 according to the specific steam requirements of different fiber types - that is, open the on / off valve 4-1-1 installed on the riser pipe 4-1 of the steam nozzle 4 that needs to be opened. After that, the present invention enters the working state.

[0033] First, the viscose short fibers cut by the cutting machine enter the inner cavity of the fiber feeding trough A through the external feeding pipe and the water flow, via the feeding funnel A-1. After being spread into a uniform fiber layer by the distributor A-2 in the inner cavity of the fiber feeding trough A, they are smoothly fed into the heating zone B of the fiber feeding trough along the drop slope A-3 under the water flow.

[0034] Next, steam from the external steam pipeline enters the root steam main pipe 3, which is located on both sides of the heating tank and is designed with short pipe segments, from the two inlets at the front and rear ends. This effectively reduces the steam pressure drop of the steam main pipe 3 and avoids the uneven steam pressure and flow caused by the large pressure drop of the long pipeline. It greatly improves the uniformity of steam pressure and flow in the pipeline, and improves and ensures the fiber opening effect. Following this, the steam in each steam main pipe 3 is further dispersed into several short-pipe segmented steam nozzles 4 connected at the bottom on the same side. That is, the steam sequentially enters the horizontal short pipe 4-2 through the on / off valve 4-1-1 and the riser pipe 4-1, and is then ejected from the steam nozzles on the horizontal short pipe 4-2 to heat the inner cavity of the heating tank 1 and the fiber layer passing through the inner cavity of the heating tank. The uniform fiber layer in the heating tank 1 is loosened by the steam and carbon disulfide in the fiber is discharged. In this process, the horizontal short pipe 4-2 can effectively reduce the steam pressure drop of the steam nozzles 4, effectively avoiding the uneven steam pressure and flow rate in the pipeline caused by the large pressure drop of the long pipeline. This design significantly improves the uniformity of steam pressure and flow rate within the pipeline, enhancing and ensuring the fiber opening effect. Furthermore, in this invention, the lengths of the horizontal short pipes 4-2 in each group of two opposing steam nozzles 4 are unequal, and the lengths of the horizontal short pipes 4-2 in adjacent groups are also unequal and arranged in an alternating pattern. Since the surface of the horizontal short pipes 4-2 is covered with steam nozzles, the steam is ejected from these nozzles and dispersed within the inner cavity of the heating tank 1. The alternating arrangement of the horizontal short pipes 4-2 further ensures the uniformity of steam distribution within the heating tank, further improving and ensuring the fiber opening effect. Subsequently, the fibers, after being opened by steam and having carbon disulfide discharged, flow out of the heating zone B of the fiber feeding tank under the influence of water flow and enter the net feeding zone C. The two flexible steam baffles 6 located at the outlet end of the heating tank automatically bend and oscillate during the fiber flow, without affecting the normal movement of the fibers or requiring manual operation, thus simplifying operation and providing convenience.

[0035] Finally, the fibers in the inner cavity of the fiber trough network area C are driven by water flow and steam, and then discharged through the discharge port C-1 and the connected external discharge pipe to the long-net refining machine at the subsequent station.

Claims

1. A sectionalized fibre feed slot device suitable for use in a viscose staple fibre after treatment production line, characterised in that: The segmented fiber feeding trough device consists of a fiber feeding area (A), a fiber feeding area (B), and a fiber feeding area (C) designed with functional zones, which are connected sequentially from front to back using flanges and bolts to form a complete and continuous fiber feeding trough. The fiber feeding area (B) includes a heating trough (1), two conical exhaust hoods (2) that are sequentially fastened to the top of the heating trough, and four steam main pipes (3) installed on the front and rear sections of both sides of the heating trough. From the bottom of each steam main pipe (3) are several parallel steam nozzles (4) arranged at intervals, which are assembled from risers (4-1) and horizontal short pipes (4-2) to form an L-shaped structure with closed outlet ends. These nozzles are connected in a ring to the closed ends of the two left and right opposite steam nozzles (4) in each group and are also embedded in the heating trough (1). The connecting sleeve (5) in the U-shaped groove (1-2) at the bottom of the cavity is provided with two flexible steam baffles (6) at the outlet end of the inner cavity of the heating tank; the surface of the horizontal short pipe (4-2) is covered with steam spray holes, and the inlet end of the horizontal short pipe (4-2) is first inserted into the flange short sleeve (1-1) extending outward from the bottom of the side wall of the heating tank, and then connected to the flange at the outlet end of the riser; the lengths of the horizontal short pipes (4-2) in each group of two left and right opposite steam spray pipes (4) are not equal, and the lengths of the horizontal short pipes (4-2) in adjacent groups are not equal and are arranged in an alternating pattern; the connecting sleeve (5) is a rectangular prism as the base, and a cylindrical limiting hole (5-1) that runs through the front and rear end faces is horizontally machined to form an outer square inner cylindrical structure, and the diameter of the cylindrical limiting hole (5-1) is larger than the outer diameter of the horizontal short pipe (4-2).

2. A sectionalized fiber feed slot device suitable for use in a viscose staple fiber post-treatment production line according to claim 1, characterized in that: An on / off valve (4-1-1) is installed on the riser (4-1) in each steam nozzle (4).

3. A sectionalized fiber feed slot device suitable for use in a viscose staple fiber post-treatment production line according to claim 1, characterized in that: A support frame (7) is provided below both the fiber feeding area (A) and the fiber heating area (B).

4. A sectionalized fiber feed slot device suitable for use in a viscose staple fiber post-treatment production line according to claim 1, characterized in that: A distributor (A-2) is arranged in the inner cavity of the fiber feeding area (A). The top of the distributor (A-2) is connected to an upwardly extending feed funnel (A-1). A discharge slope (A-3) is provided below the distributor (A-2).

5. A segmented fibre feed slot device suitable for use in a viscose staple fibre after treatment production line according to claim 1 characterised in that: A discharge port (C-1) is provided on the rear end face of the fiber feeding trough web area (C) to connect with the long web refining machine in the subsequent station.

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