Dryer for carbon fiber precursors

Abstract

The utility model discloses a dryer for carbon fiber precursors. The dryer comprises a drying box body and a drying roller unit arranged in the drying box body, and comprises a water retaining mechanism arranged between the drying roller unit and the top wall of the drying box body and used for separating the drying roller unit from the top wall of the drying box body; the water draining mechanism is arranged on the upper surface of the water retaining mechanism; by means of the water retaining mechanism, the drying roller unit can be separated from the top wall of the drying box body through the water retaining mechanism, so that condensate water formed by condensing water vapor on the top wall of the drying box body is prevented from randomly falling onto the drying rollers and carbon fiber precursors being dried, and the situation that the temperature of the surfaces of the drying rollers is reduced is avoided; the heating uniformity of the carbon fiber precursors is kept, so that the drying efficiency of the dryer is improved, the drying effect is improved, and the energy consumption is reduced; and through the drainage mechanism, condensate water can be better drained, and excessive condensate water is prevented from remaining on the water retaining mechanism.

Description

TECHNICAL FIELD

[0001] The utility model belongs to textile machinery technical field, concretely relates to a drying machine of carbon fiber precursor. BACKGROUND

[0002] The drying equipment is an indispensable component in the production process of carbon fiber precursor, and only the carbon fiber that is dried and densified can be stretched again in the steam stretching to reach the performance index of the precursor. However, during the drying process of the carbon fiber precursor, a large amount of water vapor is evaporated, and if the water vapor is not effectively discharged from the drying equipment in time, the condensed water formed by the condensation of the water vapor when it is cooled will randomly fall from the top side of the drying equipment onto the drying roller and the carbon fiber precursor being dried, which will reduce the temperature of the surface of the drying roller, cause uneven heating of the carbon fiber precursor, and thus result in the reduction of the drying efficiency of the drying machine, the reduction of the drying effect, and the increase of the energy consumption. Even if a water blocking mechanism is arranged in the drying box to prevent the condensed water from contacting the drying roller, the condensed water will still be left on the water blocking mechanism.

[0003] Therefore, the utility model is provided. CONTENT

[0004] The utility model provides a drying machine of carbon fiber precursor, which overcomes the defects of the prior art, separates the drying roller unit from the top wall of the drying box by arranging a water blocking mechanism between the drying roller unit and the top wall of the drying box, blocks the condensed water formed by the condensation of water vapor on the top wall of the drying box from randomly falling onto the drying roller and the carbon fiber precursor being dried, avoids the reduction of the temperature of the surface of the drying roller, maintains the uniformity of the heating of the carbon fiber precursor, and thus achieves the purpose of improving the drying efficiency of the drying machine, improving the drying effect, and reducing the energy consumption. In addition, the water blocking mechanism is provided with a water drainage mechanism on the upper surface, which facilitates the drainage of the condensed water and prevents the excessive residue of the condensed water on the water blocking mechanism.

[0005] To solve the above technical problems, the basic concept of the technical solution of the utility model is as follows:

[0006] The utility model provides a drying machine of carbon fiber precursor, which overcomes the defects of the prior art, separates the drying roller unit from the top wall of the drying box by arranging a water blocking mechanism between the drying roller unit and the top wall of the drying box, blocks the condensed water formed by the condensation of water vapor on the top wall of the drying box from randomly falling onto the drying roller and the carbon fiber precursor being dried, avoids the reduction of the temperature of the surface of the drying roller, maintains the uniformity of the heating of the carbon fiber precursor, and thus achieves the purpose of improving the drying efficiency of the drying machine, improving the drying effect, and reducing the energy consumption. In addition, the water blocking mechanism is provided with a water drainage mechanism on the upper surface, which facilitates the drainage of the condensed water and prevents the excessive residue of the condensed water on the water blocking mechanism.

[0007] The water blocking mechanism is arranged between the drying roller unit and the top wall of the drying box to separate the drying roller unit from the top wall of the drying box.

[0008] The water drainage mechanism is arranged on the upper surface of the water blocking mechanism.

[0009] Further, the drying roller unit includes a plurality of drying roller groups arranged side by side along the direction of the carbon fiber precursor.

[0010] The water blocking mechanism comprises a plurality of water blocking plates arranged at intervals, and the water blocking plates correspond to the drying roller groups one by one;

[0011] The water blocking plate is a multi-layer structure;

[0012] The water blocking mechanism is a water blocking layer located at the uppermost layer of the water blocking plate and made of a water blocking material.

[0013] Further, the middle layer of the water blocking plate is a stainless steel layer, and the lowermost layer of the water blocking plate is a heat absorbing layer made of a heat absorbing material.

[0014] Further, the upward projection of the drying roller group is located in the water blocking plate;

[0015] The top wall of the drying box body is provided with a plurality of water vapor suction ports;

[0016] The first gap is arranged between the adjacent two water blocking plates;

[0017] The water vapor suction ports are arranged above the first gap in a manner of every other first gap;

[0018] The downward projection of the water vapor suction port has a coincident part with the adjacent two water blocking plates.

[0019] Further, the second gap is arranged between the adjacent two drying roller groups;

[0020] The third gap is arranged between the drying roller groups at the head and tail and the side wall of the drying box body, respectively;

[0021] The water blocking plates at the head and tail extend from directly below the corresponding water vapor suction port to directly above the corresponding third gap, respectively;

[0022] Each water blocking plate in the middle part extends from directly below the corresponding water vapor suction port to directly above the corresponding second gap.

[0023] Further, the water blocking plate comprises a head water blocking section, a middle water blocking section and a tail water blocking section;

[0024] The middle water blocking section extends linearly, one end of the middle water blocking section is bent to form the head water blocking section towards the water vapor suction port, and the other end is bent to form the tail water blocking section towards the second gap or the third gap.

[0025] Further, the top surface of the water blocking plate is provided with a plurality of first grooves, and the bottom surface of the water blocking plate is provided with a plurality of second grooves, and the plurality of first grooves and the plurality of second grooves are arranged alternately;

[0026] The first groove serves as a water guide groove, the second groove is opposite to the position of the carbon fiber precursor wire, and the common side wall of the first groove and the second groove gradually inclines into the second groove from top to bottom.

[0027] Further, the non-open end of the water baffle extension end and the two sides of the water baffle extension direction are respectively upwardly bent to form auxiliary water baffles.

[0028] Further, the second gap and the third gap are respectively provided with water accumulation cavities.

[0029] The adjacent two water baffles can share the water accumulation cavities.

[0030] The downward projection of the water baffle extension end is located in the corresponding water accumulation cavity.

[0031] The top of the water accumulation cavity is provided with an opening for the condensed water on the water baffle to enter the water accumulation cavity.

[0032] Further, the lower part of all the water accumulation cavities is provided with at least one auxiliary water accumulation cavity.

[0033] One auxiliary water accumulation cavity can be shared by multiple water accumulation cavities.

[0034] The auxiliary water accumulation cavity is communicated with the drainage port of the corresponding water accumulation cavity through a drainage pipeline.

[0035] The auxiliary water accumulation cavity has a drainage port communicated with the outside of the drying box.

[0036] After the above technical scheme is adopted, the present application has the following beneficial effects compared with the prior art.

[0037] 1. By arranging the water baffle mechanism between the drying roller unit and the top wall of the drying box body, the water baffle mechanism can separate the drying roller unit from the top wall of the drying box body to block the condensed water formed by the condensation of water vapor on the top wall of the drying box from randomly falling onto the drying roller and the carbon fiber precursor being dried, so as to avoid the temperature reduction of the surface of the drying roller, maintain the uniformity of the heating of the carbon fiber precursor, and further improve the drying efficiency of the drying machine, improve the drying effect, and reduce the energy consumption.

[0038] 2. By arranging the water drainage mechanism on the upper surface of the water baffle mechanism, the condensed water can be better drained, and excessive residual condensed water on the water baffle mechanism can be prevented.

[0039] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0040] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor.

[0041] Figure 1 A structure schematic view of the carbon fiber precursor drying machine is provided for the embodiment of the present application.

[0042] Figure 2 A structure schematic view of the water baffle is provided for the embodiment of the present application.

[0043] Figure 3 A composition schematic view of the water baffle is provided for the embodiment of the present application.

[0044] Icon: 1-drying box body;1a-drying box body top wall;11-water vapor suction port;12-precursor inlet;13-precursor outlet;2-drying roller unit;21-drying roller group;211-drying roller;3-water retaining mechanism;31-water retaining part;311-water baffle;31a-water draining mechanism;311a-water draining layer;311b-stainless steel layer;311c-heat absorbing layer;311d-head end water baffle;311e-middle water baffle;311f-tail end water baffle;3111-head end water retaining section;3112-middle water retaining section;3113-tail end water retaining section;3114-water guide groove;3115-first groove;3116-second groove;312-assistant water baffle;312a-end water retaining section;312b-side water retaining section;4-accumulation structure;41-accumulation cavity;41a-single accumulation cavity;41b-shared accumulation cavity;41c-inclined groove wall;42-assistant accumulation cavity;43-drainage pipeline;5-first gap;6-second gap;7-third gap;8-carbon fiber precursor.

[0045] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme in the embodiment will be described clearly and completely in conjunction with the drawings in the embodiment of the present application, and the following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0047] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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, therefore it cannot be understood as a limitation on the present application.

[0048] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "mount", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium.

[0049] The utility model provides a kind of drying machine of carbon fiber precursor, including drying cabinet 1 and the drying roller unit 2 being located in drying cabinet 1, comprising:

[0050] Water blocking mechanism 3, it is located between drying roller unit 2 and the top wall 1a of drying cabinet, separates drying roller unit 2 with the top wall 1a of drying cabinet;

[0051] Hydrophobic mechanism 31a, it is located on the upper surface of water blocking mechanism 3.

[0052] In the embodiment of the utility model, by the above-mentioned water blocking mechanism 3, drying roller unit 2 can be separated from the top wall 1a of drying cabinet by water blocking mechanism 3, to block the condensate water formed by water vapor condensation on the top wall 1a of drying cabinet from falling randomly on drying roller 211 and carbon fiber precursor 8 being dried, avoid the temperature reduction of the surface of drying roller 211, keep the uniformity of carbon fiber precursor 8 heating, to improve the drying efficiency of drying machine, improve drying effect and reduce energy consumption, and by the above-mentioned hydrophobic mechanism 31a, it is beneficial to the better drainage of condensate water, to prevent excessive condensate water from remaining on water blocking mechanism 3.

[0053] Drying roller unit 2 is the key component in drying process, heat is transferred to carbon fiber precursor 8 by heating and rolling, to realize drying effect.Heating mode, temperature control and rolling speed of drying roller unit 2 can be adjusted according to the characteristics of carbon fiber precursor 8 and drying demand.

[0054] Water blocking mechanism 3 can be made of a variety of materials, such as high-temperature-resistant, corrosion-resistant metal materials or plastics, etc., specific selection should be determined according to the working environment and requirements of drying machine.

[0055] It should be noted that the hydrophobic mechanism can be part of the water blocking mechanism itself, or it can not be part of the water blocking mechanism itself. For example, the water blocking mechanism includes a water blocking plate, the hydrophobic mechanism includes a hydrophobic layer, the water blocking plate includes a hydrophobic layer, and the hydrophobic layer is part of the water blocking plate itself. Alternatively, the upper surface of the water blocking plate is coated with a hydrophobic layer, and the hydrophobic layer is not part of the water blocking mechanism itself.

[0056] The embodiment of the utility model discloses water retaining mechanism 3 includes for water retaining plate 311, water retaining plate 311 is multilayer structure, water retaining plate 311 from top to bottom is composed of hydrophobic layer 311a, stainless steel layer 311b and heat absorbing layer 311c, that is, the uppermost layer of water retaining plate 311 is hydrophobic layer, the middle layer is stainless steel layer and the lowermost layer is heat absorbing layer.

[0057] As Figure 3 The water retaining plate 311 is a multilayer mechanism, and the upper surface of the water retaining plate 311 is a hydrophobic layer 311a made of a hydrophobic material, which is conducive to better drainage of condensed water and prevents excessive condensed water from remaining on the water retaining plate 311.

[0058] In the embodiment of the utility model, the drying roller unit 2 includes a plurality of drying roller groups 21 arranged side by side along the running direction of the carbon fiber precursor 8; the water retaining mechanism 3 includes a plurality of water retaining parts 31 corresponding to the drying roller groups 21 one by one.

[0059] The plurality of water retaining parts 31 are arranged at intervals.

[0060] In the embodiment of the utility model, each drying roller group 21 can include a plurality of drying rollers 211, which transfer heat to the carbon fiber precursor 8 through heating and rolling to achieve drying effect. The number, layout and heating mode of the drying roller group 21 can be adjusted according to the characteristics of the carbon fiber precursor 8 and drying requirements to ensure the best drying effect.

[0061] The water retaining mechanism 3 is composed of a plurality of water retaining parts 31 corresponding to the drying roller groups 21 one by one, and each water retaining part 31 corresponds to a drying roller group 21, ensuring that the water vapor generated by each drying roller group 21 can be effectively isolated.

[0062] The plurality of water retaining parts 31 are arranged at intervals, which not only ensures the water retaining effect, but also avoids affecting the airflow and temperature distribution in the drying box body 1 due to the excessive density of the water retaining mechanism 3.

[0063] In addition, the water retaining parts 31 of the present application can be connected head to tail to form the water retaining mechanism 3, and the two water retaining parts 31 are not arranged at intervals, and the water retaining parts 31 at the head and tail are arranged at intervals between the side walls of the drying box body 1 to discharge water vapor.

[0064] In combination Figure 1The drying box body 1 has a raw wire inlet 12 and a raw wire outlet 13, the raw wire inlet 12 is arranged on the left side wall of the drying box body 1, the raw wire outlet 13 is arranged on the right side wall of the drying box body, and the running direction of the carbon fiber raw wire 8 is from left to right;

[0065] Specifically, the drying roller group 21 comprises a plurality of drying rollers 211 arranged in an up-down manner; the water blocking part 31 is a water blocking plate 311;

[0066] The projection of the drying roller 211 on the water blocking plate 311 is located in the water blocking plate 311.

[0067] Through the above arrangement, the water blocking plate 311 can cover the drying roller 211, so that the water blocking plate 311 can completely separate the drying roller 211 and the top wall 1a of the drying box.

[0068] In combination Figure 1 More specifically, the drying machine comprises four drying roller groups 21 arranged side by side from left to right, each drying roller group 21 comprises two drying rollers 211 arranged in an up-down manner, the axial direction of the drying roller 211 is the front-back direction, and the carbon fiber raw wire 8 is wound around all the drying rollers 211. Through the above arrangement, the drying area of the carbon fiber raw wire 8 can be increased, and thus the drying effect and the drying efficiency can be improved.

[0069] It should be noted that, in the two drying rollers 211 arranged in an up-down manner, the upper drying roller 211 is closer to the water vapor suction port 11, that is, the upper drying roller 211 is arranged close to the top wall of the drying box 1. Because the airflow velocity is high at the water vapor suction port 11, a large amount of heat will be taken away. The arrangement of the water blocking plate 311 can guide the hot airflow in the drying box 1 to gather around the roller surface of the upper drying roller 211, which is beneficial to the maintenance of the roller surface temperature, and the expected temperature can be reached without using a high-power heater, thereby reducing energy consumption. The raw wire inlet 12 is arranged at the top of the left side wall of the drying box 1, the raw wire outlet 13 is arranged at the bottom of the right side wall of the drying box 1, the carbon fiber raw wire 8 enters from the top of the drying box 1, and after drying, the carbon fiber raw wire 8 comes out from the bottom of the drying box 1.

[0070] In the embodiment of the utility model, a plurality of water vapor suction ports 11 are arranged on the top wall 1a of the drying box body;

[0071] The first gap 5 is arranged between the adjacent two water blocking plates 311.

[0072] The water vapor suction port 11 is arranged above the first gap 5 in a mode of every other first gap 5.

[0073] The downward projection of the water vapor suction port 11 has a coincident part between the adjacent two water blocking plates 311.

[0074] In the embodiment of the utility model, the top wall 1a of the drying box body is provided with a plurality of water vapor suction ports 11, the main role of these water vapor suction ports 11 is to timely extract the water vapor generated in the drying process, so as to maintain the dry environment in the drying box body 1.

[0075] The purpose of thus arranging the water vapor suction port 11 and the first gap 5 is to avoid the excessive dense arrangement of the water vapor suction port 11 on the basis of ensuring the suction effect of the water vapor.

[0076] The purpose of thus arranging the water vapor suction port 11 and the adjacent two water baffles 311 is that the position of the water vapor suction port 11 is not only located directly above the gap between the water baffles 311, but also the coverage range thereof extends to the edge portion of the water baffles 311, that is, the water baffles 311 can block the condensed water at the water vapor suction port 11 from falling onto the drying roller 211 and the carbon fiber precursor 8, specifically, the water baffles 311 can not only block the condensed water at the water vapor suction port 11 from falling onto the carbon fiber precursor 8 on the drying roller group 21, but also block the condensed water at the water vapor suction port 11 from falling onto the carbon fiber precursor 8 between the adjacent two drying roller groups 21.

[0077] For example, as shown in Figure 1 , the drying box body 1 has four water baffles 311, the drying box body 1 is provided with two water vapor suction ports 11, the four water baffles 311 are sequentially a first water baffle, a second water baffle, a third water baffle and a fourth water baffle from left to right, the two water vapor suction ports 11 are respectively a first water vapor suction port and a second water vapor suction port, the first water vapor suction port is arranged directly above the first gap 5 between the first water baffle and the second water baffle, no water vapor suction port 11 is arranged directly above the first gap 5 between the second water baffle and the third water baffle, the second water vapor suction port is arranged directly above the first gap 5 between the third water baffle and the fourth water baffle; the downward projection of the first water vapor suction port has a coincident portion with the first water baffle and the second water baffle, and the downward projection of the second water vapor suction port has a coincident portion with the third water baffle and the fourth water baffle.

[0078] Further, the adjacent two drying roller groups 21 are spaced apart by a second gap 6;

[0079] The drying roller groups at the head end and the tail end are respectively spaced apart from the side wall of the drying box body 1 by a third gap 7;

[0080] The water baffles at the head end and the tail end respectively extend from directly below the corresponding water vapor suction port 11 to directly above the corresponding third gap 7;

[0081] The water baffles at the middle portion extend from directly below the corresponding water vapor suction port 11 to directly above the corresponding second gap 6.

[0082] The first end of the water baffle 311d at the head, the water baffle 311f at the tail and the water baffle 311e at the middle extend directly below the corresponding water vapor suction port 11, only the end of the extension is different, which is reasonable for the water guide direction of the water guide groove 3114 on the subsequent water baffle 311 and the position of the water accumulation cavity 41;

[0083] For example, as Figure 1 The drying box 1 has four drying roller groups 21, which are the first drying roller group, the second drying roller group, the third drying roller group and the fourth drying roller group from left to right, wherein the first drying roller group is the drying roller group at the head, and the fourth drying roller group is the drying roller group at the tail;

[0084] The first water baffle is the water baffle 311d at the head, the fourth water baffle is the water baffle 311f at the tail, and the second and third water baffles are the water baffles 311e at the middle;

[0085] The first water baffle 311d at the head, i.e. the first water baffle, extends from the right to the left from directly below the first water vapor suction port to directly above the third gap 7 between the first drying roller group and the left side wall of the drying box 1; the fourth water baffle 311f at the tail, i.e. the fourth water baffle, extends from the left to the right from directly below the second water vapor suction port to directly above the third gap 7 between the fourth drying roller group and the right side wall of the drying box 1;

[0086] The first water baffle at the middle, i.e. the second water baffle, extends from the left to the right from directly below the first water vapor suction port to directly above the second gap 6 between the second drying roller group and the third drying roller group, and the second water baffle at the middle, i.e. the third water baffle, extends from the right to the left from directly below the second water vapor suction port to directly above the second gap 6 between the second drying roller group and the third drying roller group.

[0087] Further, the water baffle 311 includes a head water baffle section 3111, a middle water baffle section 3112 and a tail water baffle section 3113;

[0088] The middle water baffle section 3112 extends straight; one end of the middle water baffle section 3112 is bent towards the water vapor suction port 11 to form the head water baffle section 3111, and the other end is bent towards the second gap 6 or the third gap 7 to form the tail water baffle section 3113;

[0089] For example, as Figure 1, specifically, for the water baffle 311d at the head end, the right end of the first water baffle is bent to form a head end water baffle section 3111 towards the first water vapor suction port, and the left end is bent to form a tail end water baffle section 3113 towards the third gap 7 between the first drying roller group and the left side wall of the drying box 1; for the water baffle 311f at the tail end, the left end of the fourth water baffle is bent to form a head end water baffle section 3111 towards the second water vapor suction port, and the right end is bent to form a tail end water baffle section 3113 towards the third gap 7 between the fourth drying roller group and the right side wall of the drying box 1.

[0090] For the water baffles 311 in the middle part, the left end of the first water baffle in the middle part, i.e. the second water baffle, is bent to form a head end water baffle section towards the first water vapor suction port, and the right end is bent to form a tail end water baffle section 3113 towards the second gap 6 between the second drying roller group and the third drying roller group; the right end of the second water baffle in the middle part, i.e. the third water baffle, is bent to form a head end water baffle section towards the second water vapor suction port, and the left end is bent to form a tail end water baffle section 3113 towards the second gap 6 between the second drying roller group and the third drying roller group;

[0091] The head end water baffle section is a circular arc section formed by the middle part water baffle section bending towards the water vapor suction port 11, and the third water baffle section is a circular arc section formed by the middle part water baffle section bending towards the second gap or the third gap;

[0092] The head end water baffle section 3111 bends towards the water vapor suction port 11, that is, the head end water baffle section bends upwards, which can prevent the condensed water on the water baffle from overflowing from the head end water baffle section 3111, and further, the head end water baffle section 3111 is a circular arc section, which can guide the condensed water at the head end water baffle section 3111 to the middle part water baffle section 3112, so as to further prevent the condensed water on the water baffle 311 from overflowing from the head end water baffle section 3111;

[0093] The tail end water baffle section 3113 bends towards the second gap 6 or the third gap 7, that is, the tail end water baffle section 3113 bends downwards, which can guide the condensed water on the water baffle 311 to flow downwards into the third gap 7, especially into the water accumulation cavity 41 provided in the third gap 7 and the second gap 6, and further, the tail end water baffle section 3113 is a circular arc section, which can accelerate the downward flow of the condensed water on the water baffle 311.

[0094] Further, the water baffle 311 is provided with a plurality of water guide grooves 3114 with openings facing upwards;

[0095] The water guide grooves 3114 extend from directly below the water vapor suction port 11 to directly above the second gap 6 or the third gap 7, and the two ends of the extension direction of the water guide grooves 3114 are open ends;

[0096] When water droplets or water flow fall onto the baffle plate 311, they can flow into the water guide channel 3114, thus preventing water droplets from accumulating or flowing disorderly on the surface of the baffle plate 311. For example, condensate at the steam suction port 11 can flow into the water guide channel 3114 from one end of the opening, and into the third gap 7 or the second gap 6 from the other end of the opening, especially into the water accumulation chamber 41 provided in the second gap 6 and the third gap 7.

[0097] For example, for the first baffle plate 311d and the last baffle plate 311f, the water guide groove 3114 extends from directly below the steam suction port 11 to directly above the third gap 7; for the middle baffle plate 311e, the water guide groove 3114 extends from directly below the steam suction port 11 to directly above the second gap 6.

[0098] like Figure 2 As shown, the baffle plate 311 is further bent multiple times to form a plurality of alternating first grooves 3115 and a plurality of second grooves 3116;

[0099] The first groove 3115 forms a water guide channel 3114, and the second groove 3116 is directly opposite the position where the carbon fiber filament 8 is threaded. The common sidewall of the first groove 3115 and the second groove 3116 gradually slopes into the first groove 3115 from top to bottom.

[0100] The bending design of the baffle plate 311 increases the surface area of ​​the heat absorption layer 311c, which can further and quickly reduce the temperature difference between the baffle plate 311 and the drying roller 211.

[0101] The inclined extension of the common sidewall of the first groove 3115 and the second groove 3116 formed by bending can guide the condensate dripping on the baffle plate 311 into the water guide groove 3114, further preventing the condensate from dripping onto the carbon fiber filament 8.

[0102] Furthermore, the non-open end of the extended end of the baffle plate 311 and both sides of the extended direction of the baffle plate 311 are bent upwards to form auxiliary baffle plates 312. It should be noted that the non-open end corresponds to the open end, which is the open end of the water guide channel 3114.

[0103] Specifically, the auxiliary baffle 312 includes an end baffle section 312a formed by bending upwards at the non-open end of the extended end of the baffle 311, and side baffle sections 312b formed by bending upwards on both sides in the extension direction of the baffle. The end baffle section 312a prevents condensate from flowing out of the baffle 311 from the non-open end of the extended end, and the side baffle sections 312b prevent condensate from flowing out of the baffle 311 from both sides in the extension direction of the baffle, so that the condensate always flows into the guide channel 3114 and is discharged from the guide channel 3114. Figure 1Specifically, the extension direction of the water baffle 311 is the left-right direction.

[0104] The embodiment of the utility model further includes the water accumulation structure 4 in the drying box body 1, which accumulates the condensed water on the water retaining mechanism 3.

[0105] The water accumulation structure 4 has a drain opening that communicates with the outside of the drying box body 1.

[0106] In the embodiment of the utility model, the water accumulation structure 4 is arranged in the drying box body 1, and its main function is to collect and process the condensed water that may accumulate on the water retaining mechanism 3. The water accumulation structure 4 can have a specific shape and size to ensure that it can fully accommodate the condensed water flowing down from the water retaining mechanism 3; it can also include some guiding structures, such as slopes or water guide grooves 3114, to help the condensed water flow smoothly into the interior of the water accumulation structure 4.

[0107] The drain opening is part of the water accumulation structure 4 and is used to drain the condensed water collected in the water accumulation structure 4;

[0108] The design of the drain opening allows the condensed water to be automatically drained when it reaches a certain amount, thereby maintaining the cleanliness and effective operation of the water accumulation structure 4, which helps to maintain a dry environment inside the drying box body 1 and prevent equipment failure or performance degradation caused by water accumulation.

[0109] The drain opening can be equipped with a valve or plug to manually control the discharge of condensed water when needed. In addition, the position and size of the drain opening can also be adjusted according to the design and use requirements of the drying box body 1.

[0110] Further, the water accumulation structure 4 includes a plurality of water accumulation cavities 41;

[0111] One water accumulation cavity 41 is arranged in each of the second gap 6 and the third gap 7;

[0112] The water accumulation cavity 41 in the second gap 6 can be shared by the two adjacent water baffles 311;

[0113] The notch of the water accumulation cavity 41 faces upwards, and the water accumulation cavity 41 has a drain opening that communicates with the outside of the drying box;

[0114] The downward projection of the extension end of the water baffle 311 is located in the corresponding water accumulation cavity 41.

[0115] The water collection cavity 41 is used to collect and hold the condensed water flowing down from the water baffle 311, wherein the condensed water includes the condensed water on the top wall of the drying box 1 and the condensed water on the inner wall of the water vapor suction port 11, and the adjacent two water baffles 311 can share one water collection cavity 41, which is a shared water collection cavity 41b, or each water baffle 311 can use one water collection cavity 41, which is a single water collection cavity 41a, and the design flexibility is high, and the number and position of the water collection cavity 41 can be adjusted according to the layout of the water baffle 311 and the accumulation of the condensed water.

[0116] As Figure 1 , specifically, one water collection cavity 41 is arranged in the third gap 7 between the first drying roller group and the left side wall of the drying box, and the water collection cavity 41 is used as a single water collection cavity 41a and arranged on the left side wall of the drying box 1. Since the first water baffle 311 guides the condensed water from the right side of the water collection cavity 41 into the water collection cavity 41, the right side wall of the water collection cavity 41 is arranged as an inclined groove wall 41c, which gradually inclines and extends into the water collection cavity 41 from top to bottom. One water collection cavity 41 is arranged in the third gap 7 between the fourth drying roller group and the right side wall of the drying box 1, and the water collection cavity 41 is used as a single water collection cavity 41a and inclines and extends into the right side wall of the drying box 1. Since the fourth water baffle 311 guides the condensed water from the left side of the water collection cavity 41 into the water collection cavity 41, the left side wall of the water collection cavity 41 is arranged as an inclined groove wall 41c, which gradually inclines and extends into the water collection cavity 41 from top to bottom. The two inclined groove walls 41c can guide the condensed water into the water collection cavity 41 and prevent the condensed water from remaining on the groove wall of the water collection cavity 41.

[0117] One water collection cavity 41 is arranged in the second gap 6 between the second drying roller group and the third drying roller group, and the water collection cavity 41 is used as a shared water collection cavity 41b and shared by the second water baffle 311 and the third water baffle 311. The water collection cavity 41 can be arranged on the front side wall and / or the rear side wall of the drying box 1. Since the water collection cavity 41 is shared by the second water baffle and the third water baffle, the number of water collection cavities 41 can be reduced, the space between the two drying roller groups 21 can be reduced, and the compactness of the drying equipment can be improved.

[0118] The extension end of the water baffle 311 is the end of the water baffle 311 extending to directly above the second gap 6 or the third gap 7. The downward projection of the extension end of the water baffle 311 is located in the corresponding water collection cavity 41. The purpose of this arrangement is to enable the condensed water at the extension end of the water baffle 311 to fall into the water collection cavity 41 and prevent the condensed water from falling onto the carbon fiber precursor 8 between the two drying roller groups 21.

[0119] The condensed water in the water collection cavity 41 can be discharged to the outside of the drying box 1 through the drain.

[0120] It should be noted that the setting position of the water baffle 311 and the water storage cavity 41, and the size of the water storage cavity 41 are related to the distance from the water baffle 311 and the water storage cavity 41 to the roller surface of the drying roller 211. The above-mentioned size and position are set in consideration of the feasibility of the worker during the hanging operation.

[0121] Further, the water storage structure 4 further comprises at least one auxiliary water storage cavity 42 arranged on the inner side surface of the bottom wall of the drying box body 1.

[0122] One auxiliary water storage cavity 42 can be shared by multiple water storage cavities 41.

[0123] The auxiliary water storage cavity 42 is communicated with the drainage port of the corresponding water storage cavity 41 through the vertically extending drainage pipeline 43.

[0124] The auxiliary water storage cavity 42 has a drainage port communicated with the outside of the drying box.

[0125] The auxiliary water storage cavity 42 is used for collecting and storing the water in the water storage cavity 41, and the water in the water storage cavity 41 enters the auxiliary water storage cavity 42 through the drainage pipeline 43. The auxiliary water storage cavity 42 can be shared by multiple water storage cavities 41, which can reduce the number of auxiliary water storage cavities 42. The auxiliary water storage cavity 42 itself has a drainage port communicated with the outside of the drying box, so as to drain the collected water.

[0126] As Figure 1 , specifically, two auxiliary water storage cavities 42 are arranged in the drying box body 1, and the two auxiliary water storage cavities 42 are arranged left and right. The left auxiliary water storage cavity 42 is shared by the water storage cavities 41 in the third gap 7 between the first drying roller group and the left side wall of the drying box body 1, and the water storage cavities 41 in the second gap 6 between the second drying roller group and the third drying roller group. The right auxiliary water storage cavity 42 is used by the water storage cavities 41 in the third gap 7 between the fourth drying roller group and the right side wall of the drying box body 1.

[0127] Specifically, the drainage port of the water storage cavity 41 is arranged at the bottom of the water storage cavity 41.

[0128] The top of the auxiliary water storage cavity 42 is provided with a water inlet port.

[0129] The water inlet port of the auxiliary water storage cavity 42 is communicated with the drainage port of the corresponding water storage cavity 41 through the vertically extending drainage pipeline 43.

[0130] The above-mentioned setting helps the water to flow smoothly from the water storage cavity 41 to the auxiliary water storage cavity 42, avoiding the accumulation or leakage of the water at the connection.

[0131] As Figure 1 , specifically, the drainage pipeline 43 on the left auxiliary water storage cavity 42 is arranged in close contact with the left side wall of the drying box body 1, and the drainage pipeline on the right auxiliary water storage cavity 42 is arranged in close contact with the right side wall of the drying box body 1.

[0132] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application shall still fall within the scope of the present application.

Claims

1. A carbon fiber precursor drying machine comprising a drying chamber and a drying roller unit provided in the drying chamber, characterized by, The dryer comprises: a water blocking mechanism arranged between the drying roller unit and the top wall of the drying box body to separate the drying roller unit from the top wall of the drying box body; a water draining mechanism arranged on the upper surface of the water blocking mechanism.

2. The dryer according to claim 1, wherein the drying roller unit comprises a plurality of drying roller groups arranged side by side along the running direction of the carbon fiber precursor; the water blocking mechanism comprises a plurality of water blocking plates arranged at intervals, and each water blocking plate corresponds to a drying roller group; the water blocking plate has a multi-layer structure; the water draining mechanism is a water draining layer located at the uppermost layer of the water blocking plate and made of a water draining material.

3. The dryer according to claim 2, wherein the middle layer of the water blocking plate is a stainless steel layer, and the lowermost layer of the water blocking plate is a heat absorbing layer made of a heat absorbing material.

4. The dryer according to any one of claims 1-3, wherein the upward projection of the drying roller group is located in the water blocking plate; the top wall of the drying box body is provided with a plurality of water vapor suction ports; adjacent two water blocking plates are separated by a first gap; the water vapor suction ports are arranged above the first gaps at an interval of every other first gap; the downward projection of the water vapor suction port has an overlapping part between adjacent two water blocking plates.

5. The dryer according to claim 4, wherein adjacent two drying roller groups are separated by a second gap; the drying roller groups at the head and tail ends are respectively separated from the side walls of the drying box body by a third gap; the water blocking plates at the head and tail ends respectively extend from the position directly below the corresponding water vapor suction port to the position directly above the corresponding third gap; each water blocking plate in the middle part extends from the position directly below the corresponding water vapor suction port to the position directly above the corresponding second gap.

6. The dryer according to claim 4, wherein the water blocking plate comprises a head end water blocking section, a middle part water blocking section and a tail end water blocking section; the middle part water blocking section extends in a straight line, one end of the middle part water blocking section is bent to form the head end water blocking section towards the water vapor suction port, and the other end of the middle part water blocking section is bent to form the tail end water blocking section towards the second gap or the third gap.

7. The dryer according to claim 6, wherein the top surface of the water blocking plate is provided with a plurality of first grooves, and the bottom surface of the water blocking plate is provided with a plurality of second grooves, and the plurality of first grooves and the plurality of second grooves are arranged alternately; the first grooves serve as water guide grooves, the second grooves are opposite to the positions where the carbon fiber precursor passes, and the common side walls of the first grooves and the second grooves gradually incline into the second grooves from top to bottom.

8. The dryer according to claim 7, wherein the non-open end of the extension end of the water blocking plate and the two sides of the extension direction of the water blocking plate are respectively bent upwards to form auxiliary water blocking plates.

9. The dryer according to claim 5, wherein the second gap and the third gap are respectively provided with a water accumulation cavity; and adjacent two water blocking plates can share the water accumulation cavity; the downward projection of the extension end of the water blocking plate is located in the corresponding water accumulation cavity; the top of the water accumulation cavity is provided with an opening for the condensed water on the water blocking plate to enter the water accumulation cavity.

10. The dryer according to claim 9, wherein the lower part of all the water accumulation cavities is provided with at least one auxiliary water accumulation cavity; one auxiliary water accumulation cavity can be shared by multiple water accumulation cavities; the auxiliary water accumulation cavity is communicated with the drainage port of the corresponding water accumulation cavity through a drainage pipeline. The auxiliary water-collecting cavity has a water outlet communicating with the outside of the drying box.

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