Water-blocking tape drying device

Abstract

The utility model relates to the technical field of optical cable production, and discloses a water-blocking tape drying device which comprises a drying box, a feeding port and a discharging port are formed in the end of the drying box in the length direction, an electric heating wire net is arranged in the drying box, and an air blowing barrel is arranged on the top wall of the drying box and located in the interior communicated with the electric heating wire net. A plurality of conveying rollers are arranged in the drying box in a staggered mode in the conveying direction of the non-woven fabric, the conveying rollers are rotationally arranged below the electric heating wire net, the non-woven fabric sequentially penetrates through the conveying rollers, and a heat exchanger is further arranged on the outer side wall of the drying box; an air suction pipe is arranged between an air inlet of the heat exchanger and the side wall, located above the conveying rollers, in the drying box in a communicating mode, an air inlet of the air suction pipe is located below the electric heating wire net, and an air outlet pipe is arranged between an air outlet of the heat exchanger and the side wall, located below the conveying rollers, in the drying box in a communicating mode. The non-woven fabric drying device has the effect of improving non-woven fabric drying efficiency.

Description

Technical Field

[0001] This application relates to the technical field of optical cable production, and in particular to a water-blocking tape drying device. Background Art

[0002] A water-blocking tape is a special material used in cables, optical cables and other wires and cables to prevent moisture intrusion. It is usually composed of materials such as non-woven fabric, rubber, carbon black, copper tape and highly water-absorbent water-blocking agent, and has the characteristic of swelling when encountering water. It can effectively prevent moisture from penetrating along the gaps of the cable or optical cable, protect the inside of the cable from moisture erosion, thereby extending the service life of the cable and ensuring the communication quality. It is widely used in many fields such as communication, electric power, construction, transportation, etc., and is an indispensable part of the waterproof design of wires and cables such as cables and optical cables.

[0003] The preparation process of the water-blocking tape includes steps such as raw material preparation, mixing and fusion, coating and laminating, re-coating, drying and forming, and performance testing. Through these steps, it can be ensured that the water-blocking tape has good water-blocking performance and applicability, meeting the waterproof requirements of wires and cables such as cables and optical cables.

[0004] Chinese Patent with Publication No. CN218531646U discloses a water-blocking tape drying device, which includes a drying box. Opposite ends of the drying box are provided with a feed inlet and a discharge outlet, both the feed inlet and the discharge outlet are communicated with the inside of the drying box. An electric heating wire mesh is arranged inside the drying box, and a conveying device for conveying non-woven fabric is arranged inside the drying box. The conveying device is located below the electric heating wire mesh, and a blower is connected to the top of the drying box. The air outlet of the blower is communicated with the inside of the drying box.

[0005] The above water-blocking tape drying device mainly utilizes the principle of hot air flow. The blower blows hot air onto the surface of the non-woven fabric through the electric heating wire mesh to improve the drying speed of the non-woven fabric. However, both sides of the non-woven fabric are coated with a special waterproof material. This drying device only blows hot air on the single side of the non-woven fabric facing the air outlet, while the single side of the non-woven fabric facing away from the air outlet is attached to the conveyor belt, resulting in the side of the non-woven fabric attached to the conveyor belt not being able to contact the flowing hot air, causing insufficient drying of this side of the non-woven fabric; if the single side of the non-woven fabric facing the air outlet is dried and leaves the drying device, in order to continue drying the other side, it may be turned over and then re-entered into the drying device for drying. At this time, the originally dried side is likely to be over-dried, which not only affects the performance and quality of the water-blocking tape, but also reduces the work efficiency. Utility Model Content

[0006] In order to improve the drying efficiency of the non-woven fabric, this application provides a water-blocking tape drying device.

[0007] A water-blocking tape drying device provided by this application adopts the following technical solutions:

[0008] A water-blocking tape drying device includes a drying box. At both ends of the drying box along the length direction, a feed inlet and a discharge outlet are respectively arranged. An electric heating wire mesh is arranged inside the drying box, and a blowing cylinder is arranged on the top wall of the drying box and communicated with the inside of the electric heating wire mesh. A blower is arranged at the air inlet of the blowing cylinder. A number of conveying rollers are arranged in a staggered manner along the conveying direction of the non-woven fabric inside the drying box. The number of conveying rollers is rotatably arranged below the electric heating wire mesh, and the non-woven fabric passes through between the number of conveying rollers in sequence. A heat exchanger is also arranged on the outer side wall of the drying box. A suction air pipe is communicated between the air inlet of the heat exchanger and the side wall inside the drying box above the number of conveying rollers, and the air inlet of the suction air pipe is located below the electric heating wire mesh. An air outlet pipe is communicated between the air outlet of the heat exchanger and the side wall inside the drying box below the number of conveying rollers.

[0009] By adopting the above technical solutions, the non-woven fabric enters the drying box from the feed inlet, is conveyed by the staggered conveying rollers, and leaves the drying box from the discharge outlet after the drying operation is completed. During the conveying process, the blower blows air to the electric heating wire mesh through the blowing cylinder to form hot air, which dries the non-woven fabric. At the same time, the heat exchanger sucks out part of the hot air in the drying box through the suction air pipe, exchanges heat and then blows it back into the drying box through the air outlet, forming a hot air circulation system, which improves the utilization efficiency of thermal energy. Due to the staggered arrangement of the conveying rollers, both the upper and lower surfaces of the non-woven fabric can be evenly heated during the conveying process, so as to realize uniform drying on both sides and further improve the drying efficiency.

[0010] Optionally, a dehumidifying air pipe is arranged on one side of the blower at the top of the drying box. The dehumidifying air pipe is arranged parallel to the length direction of the drying box, and a ventilation pipe is communicated between the dehumidifying air pipe and the inside of the drying box. The top end of the ventilation pipe extends into the inside of the dehumidifying air pipe. A dehumidifying fan communicating with the dehumidifying air pipe is also arranged on the dehumidifying air pipe. A water outlet communicating with an external collection device is also arranged on the side wall of the dehumidifying air pipe near the bottom.

[0011] By adopting the above technical solutions, the added dehumidifying air pipe and dehumidifying fan on the drying box can timely extract the water vapor generated during the drying process, prevent the water vapor from accumulating in the drying box, and thus further improve the drying effect. At the same time, by setting the water outlet to communicate with the external collection device, the extracted water vapor can be conveniently collected and processed.

[0012] Optionally, a diversion arc plate is arranged above the ventilation pipe inside the dehumidifying air pipe. The center of the arc of the diversion arc plate is located below itself, and the diversion arc plate covers the ventilation pipe and extends out of the outer peripheral side wall of the ventilation pipe along both sides of its own length direction.

[0013] By adopting the above technical solution, the dehumidifying fan sucks the water vapor generated during the drying process in the drying box into the dehumidifying air duct through the ventilation duct. The setting of the diversion arc plate enables the water vapor sucked into the ventilation duct to flow along the arc surface of the diversion arc plate to the inside of the dehumidifying air duct. Since the ventilation duct is located inside the dehumidifying air duct and higher than the bottom wall of the dehumidifying air duct, the possibility of the condensed water in the water vapor flowing back into the drying box from the ventilation duct is reduced, and the drying effect of the water blocking belt is further improved.

[0014] Optionally, the drying box is equally divided into multiple units along the length direction. One blower, one heat exchanger, and one electric heating wire mesh are provided in the drying box corresponding to each unit. A central control screen is provided on the side wall of the drying box, and each blower, heat exchanger, and electric heating wire mesh are electrically connected to the central control screen.

[0015] By adopting the above technical solution, the drying conditions of each unit, such as temperature, humidity, and wind speed, can be monitored and controlled in real time through the central control screen. In this way, the drying conditions can be flexibly adjusted according to the drying situation of the non-woven fabric to ensure that the non-woven fabric is evenly heated and achieves the best drying effect.

[0016] Optionally, a support frame is provided at the bottom of the drying box, and heat dissipation channels are provided on the bottom wall of the drying box corresponding to each unit. A box door is provided on the bottom wall of the drying box corresponding to each heat dissipation channel, and an electromagnetic lock is provided on the box door. The electromagnetic lock is electrically connected to the central control screen.

[0017] By adopting the above technical solution, the setting of the heat dissipation channels helps to accelerate the heat dissipation efficiency of the drying box after it stops working, thereby reducing the waiting time for the operator to maintain the drying box, and further improving the working efficiency of the drying box.

[0018] Optionally, a filter screen is detachably provided at each blowing cylinder.

[0019] By adopting the above technical solution, the setting of the filter screen helps to filter impurities and dust in the air entering the drying box, reducing the possibility of impurities and dust interfering with the non-woven fabric being dried inside the drying box, thereby improving the drying effect of the non-woven fabric inside the drying box.

[0020] Optionally, cleaning ports are provided on the side wall of the drying box near the bottom corresponding to each unit, and a bin door is hinged at each cleaning port.

[0021] By adopting the above technical solution, the setting of the cleaning ports facilitates the operator to regularly clean the impurities accumulated at the bottom inside the drying box, thereby increasing the service life of the drying box and improving the drying effect of the drying box on the non-woven fabric.

[0022] Optionally, an inclined discharge plate is provided at the inner bottom of the drying box corresponding to each unit, and a connection is provided between the side wall below the inclination of each inclined discharge plate and the bottom wall of the cleaning port.

[0023] By adopting the above technical solution, the inclined discharge plate facilitates the rolling of dust and impurities along the inclined surface of the inclined discharge plate and accumulation at the cleaning port, and the inclined discharge plate reduces the dead angle of cleaning at the inner bottom of the drying box, improving the cleaning efficiency of the operator in cleaning the impurities inside the drying box.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The non-woven fabric enters the drying box from the feed port, is conveyed by the staggered conveying rollers, and leaves the drying box from the discharge port after the drying operation is completed. During the conveying process, the blower blows air through the air duct onto the electric heating wire mesh to form hot air for drying the non-woven fabric; at the same time, the heat exchanger sucks out part of the hot air in the drying box through the suction duct, exchanges heat and then blows it back into the drying box through the air outlet, forming a hot air circulation system, improving the utilization efficiency of thermal energy. Due to the staggered arrangement of the conveying rollers, both the upper and lower surfaces of the non-woven fabric can be evenly heated during the conveying process, thereby achieving uniform drying on both sides and further improving the drying efficiency;

[0026] 2. The additional dehumidifying air duct and dehumidifying fan on the drying box can timely extract the water vapor generated during the drying process, preventing the water vapor from accumulating in the drying box, thereby further improving the drying effect. At the same time, by setting the water outlet to communicate with the external collection device, the extracted water vapor can be conveniently collected and processed;

[0027] 3. The dehumidifying fan sucks the water vapor generated during the drying process in the drying box into the dehumidifying air duct through the ventilation duct. The setting of the diversion arc plate can make the water vapor drawn into the ventilation duct flow along the arc surface of the diversion arc plate to the inside of the dehumidifying air duct. Since the ventilation duct is located inside the dehumidifying air duct and higher than the bottom wall of the dehumidifying air duct, the possibility of the condensed water from the water vapor flowing back into the drying box from the ventilation duct is reduced, further improving the drying effect of the water blocking belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0029] Figure 2 is the overall sectional view showing the internal structure of the drying box in the embodiment of the present application.

[0030] Figure 3 is the schematic diagram showing the connection relationship between the heat exchanger and the drying box in the embodiment of the present application.

[0031] Figure 4It is a sectional view showing the positional relationship between the diversion arc plate and the ventilation pipe in the embodiment of the present application.

[0032] Explanation of reference numerals:

[0033] 01, non-woven fabric; 1, drying box; 11, feed inlet; 12, discharge outlet; 13, cleaning port; 131, bin door; 14, support frame; 15, heat dissipation channel; 2, central control screen; 3, conveying roller; 4, heating mechanism; 41, electric heating wire mesh; 42, hair dryer; 43, heat exchanger; 431, suction air pipe; 432, air outlet pipe; 5, dehumidification mechanism; 51, dehumidification air pipe; 511, water outlet; 512, diversion arc plate; 52, dehumidification fan; 6, air blowing cylinder; 61, filter screen; 7, ventilation pipe; 8, inclined discharge plate; 9, box door; 91, electromagnetic lock. Detailed implementation manners

[0034] The following further elaborates on the present application in conjunction with the attached Figures 1-4 for a more detailed description.

[0035] The embodiment of the present application discloses a water-blocking strip drying device.

[0036] Referring to Figure 1 and Figure 2 , a water-blocking strip drying device includes a drying box 1 made of heat-insulating materials. A central control screen 2 is fixedly arranged on the side wall of the drying box 1, and the drying box 1 is respectively provided with a feed inlet 11 and a discharge outlet 12 at both ends in its length direction. A plurality of conveying rollers 3 are arranged in a staggered and rotating manner along the conveying direction of the non-woven fabric 01 inside the drying box 1. The plurality of conveying rollers 3 are all arranged parallel to the length direction of the feed inlet 11, and a heating mechanism 4 and a dehumidification mechanism 5 are arranged inside the drying box 1. The electrical equipment in the heating mechanism 4 and the dehumidification mechanism 5 are all electrically connected to the central control screen 2.

[0037] Referring to Figure 1 and Figure 2 , the non-woven fabric 01 enters the drying box 1 from the feed inlet 11, is conveyed through the staggered conveying rollers 3, leaves the drying box 1 from the discharge outlet 12 after the drying operation is completed, and during the conveying process inside the drying box 1, the heating mechanism 4 is controlled by the central control screen 2 to dry the non-woven fabric 01, while the dehumidification mechanism 5 extracts the water vapor generated during the drying process from the drying box 1 to reduce the influence of the water vapor on the drying process of the non-woven fabric 01.

[0038] Referring to Figure 2 , Figure 3 and Figure 4, the drying oven 1 is equally divided into multiple units along the length direction as required. In this embodiment, taking four units as an example, a heating mechanism 4 is provided for each unit. The heating mechanism 4 includes an electric heating wire mesh 41, a blower 42, and a heat exchanger 43. The electric heating wire mesh 41 is installed inside the drying oven 1 and is located above a plurality of conveying rollers 3. And directly above each electric heating wire mesh 41 on the top wall of the drying oven 1, a blowing cylinder 6 fixedly provided inside the drying oven 1 is communicated. A filter screen 61 is installed at the end of the blowing cylinder 6 through a flange. The blower 42 is fixedly provided at the air inlet of the corresponding blowing cylinder 6.

[0039] Refer to Figure 2 and Figure 3 , the heat exchanger 43 is fixedly provided on the outer side wall of the drying oven 1 on the side away from the central control screen 2. The air inlet of the heat exchanger 43 is communicated with the inside of the drying oven 1 through a suction air pipe 431. The suction air pipe 431 is located between the conveying roller 3 and the electric heating wire mesh 41; the air outlet of the heat exchanger 43 is communicated with the inside of the drying oven 1 through an air outlet pipe 432. The air outlet pipe 432 is located below a plurality of conveying rollers 3.

[0040] Refer to Figure 1 and Figure 2 , the dehumidification mechanism 5 includes a dehumidifying air pipe 51 and a dehumidifying fan 52. The dehumidifying air pipe 51 is located at the top of the drying oven 1 and is arranged parallel to the length direction of the drying oven 1. And a ventilation pipe 7 is communicated between the dehumidifying air pipe 51 and the inside of each unit of the drying oven 1. The top end of the ventilation pipe 7 extends into the inside of the dehumidifying air pipe 51. And a water outlet 511 communicating with an external collection device is also provided on the side wall of the dehumidifying air pipe 51 near the bottom. The dehumidifying fan 52 is communicated with the inside of the dehumidifying air pipe 51 and is fixedly provided on the outer side wall of the dehumidifying air pipe 51.

[0041] Refer to Figure 1 and Figure 4 , in order to prevent the water condensed from the water vapor from flowing back into the drying oven 1 through the ventilation pipe 7, a diversion arc plate 512 is fixedly provided inside the dehumidifying air pipe 51 above the ventilation pipe 7. The diversion arc plates 512 commonly cover a plurality of ventilation pipes 7, and the center of the arc is located below itself. The two sides of the diversion arc plate 512 along its own length direction both extend out of the outer side wall of the ventilation pipe 7.

[0042] Refer to Figure 1 and Figure 4 , in order to facilitate the regular cleaning and maintenance of the drying oven 1, a cleaning port 13 is provided on the side wall of the drying oven 1 near the bottom for each unit, and each cleaning port 13 is equipped with a hatch door 131. An inclined discharge plate 8 is fixedly provided on the inner bottom of the drying oven 1 corresponding to each cleaning port 13. The inclined side wall of the inclined discharge plate 8 is fixedly connected to the bottom wall of the cleaning port 13.

[0043] Refer to Figure 1and Figure 3 To improve the heat dissipation effect of the drying oven 1, a support frame 14 is fixedly arranged at the bottom of the drying oven 1, and heat dissipation channels 15 are provided on the bottom wall of the drying oven 1 corresponding to each unit. A box door 9 is installed on the bottom wall of the drying oven 1 corresponding to each heat dissipation channel 15, and an electromagnetic lock 91 is installed at the opening and closing position of the box door 9. Each electromagnetic lock 91 is electrically connected to the central control screen 2.

[0044] The implementation principle of a water-blocking tape drying device according to an embodiment of the present application is as follows: The non-woven fabric 01 enters the drying oven 1 from the feed port 11, is conveyed by the staggered conveying rollers 3, and leaves the drying oven 1 from the discharge port 12 after the drying operation is completed. During the conveying process, the hair dryers 42, electric heating wire meshes 41, and heat exchangers 43 on each unit are controlled by the central control screen 2 to work as needed. The hair dryer 42 blows air to the electric heating wire mesh 41 through the air duct 6 to form hot air for drying the non-woven fabric 01. At the same time, the heat exchanger 43 sucks out a part of the hot air in the drying oven 1 through the air suction pipe 431, exchanges heat, and then blows it back into the drying oven 1 through the air outlet to form a hot air circulation system.

[0045] During the hot air drying process, the dehumidifying fan 52 is controlled by the central control screen 2 to work, and the water vapor generated during the drying process can be timely sucked into the dehumidifying air duct 51. The water accumulated in the dehumidifying air duct 51 flows out from the water outlet 511 in time and is collected by an external collecting device.

[0046] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A water-blocking tape drying device, characterized in that: The invention comprises a drying box (1), wherein the ends of the drying box (1) along the length direction are respectively provided with a feed inlet (11) and a discharge outlet (12), wherein an electric heating wire mesh (41) is provided inside the drying box (1), and a blower (6) is provided on the top wall of the drying box (1) and is connected to the electric heating wire mesh (41), wherein a blower (42) is provided at the air inlet of the blower (6), wherein a plurality of conveying rollers (3) are staggeredly arranged along the conveying direction of the non-woven fabric (01) inside the drying box (1), wherein the plurality of conveying rollers (3) are rotatably arranged on the electric heating wire mesh (41) ), and the non-woven fabric (01) passes through a plurality of conveying rollers (3) in sequence, a heat exchanger (43) is further provided on the outer wall of the drying box (1), an air inlet of the heat exchanger (43) is connected to the side wall of the drying box (1) above the plurality of conveying rollers (3) and an air suction pipe (431) is provided, and the air inlet of the air suction pipe (431) is located below the electric heating wire mesh (41), and an air outlet of the heat exchanger (43) is connected to the side wall of the drying box (1) below the plurality of conveying rollers (3) and an air outlet pipe (432) is provided.

2. A water-blocking tape drying device according to claim 1, characterized in that: A dehumidification duct (51) is arranged at the top of the drying box (1) on one side of the hair dryer (42); the dehumidification duct (51) is arranged parallel to the length direction of the drying box (1); a ventilation duct (7) is arranged between the dehumidification duct (51) and the interior of the drying box (1); the top end of the ventilation duct (7) extends to the interior of the dehumidification duct (51); a dehumidification fan (52) connected to the dehumidification duct (51) is also arranged on the dehumidification duct (51); and a water outlet (511) connected to an external collecting device is also arranged on the side wall of the dehumidification duct (51) near the bottom.

3. A water-blocking tape drying device according to claim 2, characterized in that: A guide arc plate (512) is arranged inside the dehumidifying air duct (51) above the ventilation duct (7); the arc center of the guide arc plate (512) is located below the guide arc plate (512); the guide arc plate (512) covers the ventilation duct (7) and extends out of the outer peripheral side walls of the ventilation duct (7) on both sides along its length direction.

4. A water-blocking tape drying device according to claim 3, characterized in that: The drying box (1) is equally divided into a plurality of units along the length direction, and one of the hair dryer (42), the heat exchanger (43) and the electric heating wire mesh (41) is arranged in the drying box (1) corresponding to each unit. A central control panel (2) is arranged on the side wall of the drying box (1), and each of the hair dryer (42), the heat exchanger (43) and the electric heating wire mesh (41) is electrically connected to the central control panel (2).

5. A water-blocking tape drying device according to claim 4, characterized in that: A support frame (14) is provided at the bottom of the drying box (1), and a heat dissipation channel (15) is provided on the bottom wall of the drying box (1) corresponding to each unit, and a box door (9) is provided on the bottom wall of the drying box (1) corresponding to each heat dissipation channel (15), and an electromagnetic lock (91) is provided on the box door (9), and the electromagnetic lock (91) is electrically connected to the central control screen (2).

6. The water-blocking tape drying device according to claim 1, characterized in that: Each of the hair dryers (6) is provided with a detachable filter screen (61).

7. The water-blocking tape drying device according to claim 4, characterized in that: A cleaning port (13) is provided on the side wall of the drying box (1) close to the bottom for each unit, and a compartment door (131) is hingedly connected to each cleaning port (13).

8. A water-blocking tape drying device according to claim 7, characterized in that: The inner bottom of the drying box (1) is provided with an inclined plate (8) corresponding to each unit, and each inclined plate (8) is connected between the inclined lower side wall and the bottom wall of the cleaning port (13).

Images