A glass fiber cloth post-treatment impregnation tank

Abstract

The utility model discloses a kind of glass fibre cloth post-processing impregnation tank, including tank body, the tank body is separated into at least three independent processing cabin sequentially communicated by at least two bulkheads inside;The top edge of the bulkhead forms weir for overflow, and the height of each weir sequentially increases along material advancing direction, so that the liquid level of each independent processing cabin forms ladder-shaped distribution.The glass fibre cloth post-processing impregnation tank, the most clean desizing liquor is supplemented to the third processing cabin with highest liquid level.Glass fibre cloth then countercurrent and up, from first processing cabin, sequentially through second processing cabin and third processing cabin.In this process, the slurry and other impurities carried on cloth are mostly washed off in turbid first processing cabin, then rinsed in increasingly clean liquid, finally leave impregnation tank in clean state, realize the gradient utilization and dynamic purification of desizing liquor.

Description

Technical Field

[0001] This utility model relates to an impregnation tank for post-treatment of glass fiber cloth, belonging to the field of glass fiber cloth post-treatment technology. Background Technology

[0002] In the post-processing of materials such as fiberglass cloth, desizing tanks are commonly used for desizing. A traditional desizing tank system typically consists of a slurry tank, a filter tank, an ice water tank, pipes, and multiple guide rollers. Its basic working principle is as follows: desizing solution is injected and fills the slurry tank; the material to be treated is immersed in the desizing solution under the guidance of the rollers, allowing the desizing solution to penetrate into the internal pores of the material, thereby improving its physical and chemical properties.

[0003] However, the aforementioned traditional impregnation tank system suffers from a series of long-standing technical defects in practical applications, which have not been effectively resolved. Specifically: Traditional desizing tanks are typically large, single-cavity structures. Poor flow of the desizing solution within these tanks can lead to localized concentration and temperature differences, resulting in inconsistent impregnation of different parts of the material and affecting product performance uniformity. Large-volume tanks also cause uneven convection of the desizing solution, resulting in localized concentration variations and inconsistent surface wetting, leading to significant fluctuations in impregnation content. When the tank depth is excessive, the hydraulic pressure difference between the upper and lower layers of material becomes too large, causing air bubbles to form and become trapped at the bottom, severely impacting the desizing solution's impregnation effect and increasing product defect rates. Traditional large tanks require maintaining a liquid level far exceeding actual process requirements to meet production needs, resulting in massive single-volume injections. When changing processed materials or during cleaning and maintenance, significant amounts of liquid remain inside the large tank, on the tank walls, and in the pipes, causing substantial waste of desizing solution and directly increasing production costs.

[0004] In summary, providing a novel impregnation tank that can effectively solve the above problems, achieve stable and precise impregnation quality, save materials, and is easy to clean has become a pressing technical challenge in this field. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a post-treatment impregnation tank for glass fiber cloth, which effectively ensures stable impregnation quality.

[0006] To achieve the above objectives / to solve the above technical problems, this utility model adopts the following technical solution: A glass fiber cloth post-treatment impregnation tank includes a tank body, the interior of which is divided into at least three sequentially connected independent treatment chambers by at least two partitions. The top edge of the partition forms a weir for overflow, and the height of each weir increases sequentially along the material advance direction, so that the liquid level of each independent processing chamber forms a stepped distribution.

[0007] Furthermore, the tank wall has a hollow sandwich structure, forming a closed flow channel for the circulation of cooling medium.

[0008] Furthermore, at least one of the independent processing compartments is connected to a water level control device.

[0009] Furthermore, the third independent processing compartment along the material's direction of travel is connected to a water level control device.

[0010] Furthermore, the first and third independent processing compartments along the material's direction of travel are connected to water level control devices.

[0011] Furthermore, each of the independent processing compartments is connected to a water level control device.

[0012] Furthermore, the water level control device includes a water supply pipeline and a water level control valve installed on the water supply pipeline. The water supply pipeline is connected to a liquid source and is used to supply desizing liquid to the corresponding independent processing chamber.

[0013] Furthermore, the bottom of the first independent processing compartment along the material's forward direction is provided with a drain outlet and a drain valve.

[0014] Furthermore, the weir opening is serrated in shape.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention provides a post-treatment impregnation tank for fiberglass cloth, in which the cleanest desizing solution is replenished to the third treatment chamber with the highest liquid level. When the liquid level exceeds its weir, the desizing solution overflows evenly to the second treatment chamber, and then overflows to the first treatment chamber with the lowest liquid level. The fiberglass cloth flows upstream, entering from the first treatment chamber and passing through the second and third treatment chambers in sequence. During this process, most of the sizing and other impurities carried on the cloth are washed off in the turbid first treatment chamber, and then rinsed in increasingly cleaner liquids, finally leaving the impregnation tank in a clean state, thus achieving gradient utilization and dynamic purification of the desizing solution. Attached Figure Description

[0016] Figure 1 This utility model provides a glass fiber cloth post-treatment impregnation tank; Figure 2 This is a structural diagram of the water level control device in configuration mode; Figure 3 This is a schematic diagram of the water level control device in configuration mode two; Figure 4 This is a schematic diagram of the water level control device in configuration mode three.

[0017] In the diagram: 1. Tank; 10. Hollow sandwich structure; 101. Cooling medium inlet; 102. Cooling medium outlet; 2. Baffle; 3. Independent treatment chamber; 3a. First treatment chamber; 3b. Second treatment chamber; 3c. Third treatment chamber; 4. Weir; 5. Water level control device; 6. Water supply pipeline; 7. Water level control valve; 8. Sewage outlet; 9. Sewage valve. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0021] like Figure 1 As shown, the glass fiber cloth post-treatment impregnation tank provided by this utility model mainly includes a tank body 1.

[0022] The interior of the tank 1 is divided into at least three sequentially connected independent processing chambers 3 by at least two partitions 2. In this embodiment, taking three independent processing chambers 3 as an example, along the forward direction of the fiberglass cloth (not shown in the figure), they are sequentially the first processing chamber 3a, the second processing chamber 3b, and the third processing chamber 3c.

[0023] The top edge of each of the partitions 2 is machined to form a weir 4 for overflow. Crucially, the height of each weir 4 increases sequentially along the material flow direction. Specifically, the weir 4 between the first processing chamber 3a and the second processing chamber 3b has the lowest height, the weir 4 between the second processing chamber 3b and the third processing chamber 3c has a moderate height, and the weir 4 at the end of the third processing chamber 3c or its outlet has the highest height. This design results in a stepped distribution of liquid levels from low to high in each of the individual processing chambers 3 under static or dynamic equilibrium conditions.

[0024] In the above technical solution, during operation, the cleanest desizing solution is replenished to the third treatment chamber 3c, which has the highest liquid level. When the liquid level exceeds its weir, the desizing solution overflows evenly to the second treatment chamber 3b. Similarly, the desizing solution in the second treatment chamber 3b overflows to the first treatment chamber 3a, which has the lowest liquid level. The fiberglass cloth flows upstream, entering from the first treatment chamber 3a and passing through the second treatment chamber 3b and the third treatment chamber 3c in sequence. During this process, most of the impurities such as sizing carried on the cloth are washed off in the turbid first treatment chamber 3a, and then rinsed in increasingly cleaner liquids, finally leaving the impregnation tank in a clean state, thus achieving gradient utilization and dynamic purification of the desizing solution. Example 2

[0025] like Figure 1 and Figure 2 As shown, the tank wall of the tank 1 is constructed as a hollow sandwich structure 10. The hollow sandwich structure 10 forms a closed flow channel surrounding the tank, which is provided with a cooling medium inlet 101 and a cooling medium outlet 102.

[0026] The cooling medium inlet 101 is located at the bottom of the hollow sandwich structure 10, and the cooling medium outlet 102 is located at the top of the hollow sandwich structure 10. This low-inlet, high-outlet arrangement facilitates the expulsion of air from the sandwich structure when the cooling medium is introduced, ensuring that the sandwich structure is completely filled with the cooling medium. This ensures sufficient and uniform heat exchange with the deslurry in the tank, achieving optimal cooling effect and control precision.

[0027] In addition, the cooling medium inlet 101 and the cooling medium outlet 102 can also be arranged on the same side of the hollow sandwich structure 10, and adopt the bottom-in, top-out method, which provides convenience for the centralized arrangement of external pipelines.

[0028] In the above technical solution, low-temperature cooling water (e.g., controlled below 25°C) is pumped into the jacket from the cooling medium inlet 101 by an external chiller unit (not shown), circulates, and then returns to the chiller unit from the cooling medium outlet 102. As the cooling water flows through the hollow jacket structure 10, it undergoes efficient and uniform heat exchange with the desizing liquid within the tank through the tank walls, thereby achieving precise control of the desizing liquid temperature, with fluctuation errors controlled within ±3°C. This is particularly suitable for the desizing process of temperature-sensitive electronic-grade fiberglass cloth, effectively ensuring the stability of the processing quality. Example 3

[0029] To further enhance the flexibility of process control, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, based on Embodiment 1 or 2, at least one of the independent processing chambers 3 is connected to a water level control device 5.

[0030] One specific implementation is as follows: the water level control device 5 includes a water supply pipeline 6 and a water level control valve 7 installed on the water supply pipeline 6. The water supply pipeline 6 is connected to an external desizing liquid source (such as a mixing tank or a circulating filtration system) and is used to supply desizing liquid to the corresponding independent processing chamber 3.

[0031] Water level control can be configured with various strategies: Configuration Mode 1: such as Figure 2 As shown, a water level control device 5 is connected only at the liquid source inlet, i.e., the third treatment chamber 3c. The liquid level of the entire system is indirectly stabilized by controlling the total inflow of water.

[0032] Configuration Mode 2: such as Figure 3 As shown, water level control devices 5 are connected to the first treatment chamber 3a and the third treatment chamber 3c, respectively. By controlling the water intake in the third independent treatment chamber 3c and the system level reference in the first independent treatment chamber 3a, the balance of the entire system can be controlled more precisely.

[0033] Configuration Mode 3: such as Figure 4 As shown, each of the first treatment chamber 3a, the second treatment chamber 3b, and the third treatment chamber 3c is connected to an independent water level control device 5. This allows for the most precise control, such as individually raising the liquid level in the second treatment chamber 3b to enhance its cleaning effect.

[0034] The water level control valve 7 can be a manual valve, or an electric or pneumatic regulating valve. When an electric or pneumatic regulating valve is used, a liquid level sensor (not shown) can be installed in each independent processing compartment 3 to achieve automatic control. The liquid level sensor, the water level control valve 7, and the central controller such as a PLC are electrically connected to form a closed-loop control system, which maintains the liquid level of each compartment at the set value in real time. The means of liquid level regulation through a closed-loop control system is widely used in this field or related fields and is a conventional technical means, which will not be described in detail here. Example 4

[0035] In order to efficiently remove the impurities concentrated in the first processing chamber 3a, such as Figure 1 As shown, a drain outlet 8 is opened at the lowest point of the bottom of the first processing chamber 3a, and a drain pipe equipped with a drain valve 9 is connected to it.

[0036] In the above technical solution, the drain valve 9 can be opened periodically or continuously to directly discharge the high-concentration waste liquid rich in impurities from the dirtiest part of the system, the first treatment chamber 3a, while simultaneously replenishing an equal amount of fresh desizing liquid through the water supply pipe 6 of the third treatment chamber 3c. This mode of localized drainage and overall replenishment greatly reduces the overall replacement frequency of the desizing liquid, achieving cost savings. Example 5

[0037] To ensure the uniformity and stability of the overflow liquid curtain and avoid local flow interruptions or uneven liquid curtain thickness, the shape of the weir 4 can be optimized.

[0038] like Figures 2 to 4 As shown, the weir 4 is serrated. The serrated weir 4 divides the overflow liquid into multiple small units, which can effectively disperse the liquid flow, promote the mixing of the liquid in each small unit, make the liquid curtain more uniform, and prevent impurities from accumulating at the edge of the weir 4 to a certain extent.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A glass fiber cloth post-treatment impregnation tank, comprising a tank body (1), characterized in that, The tank (1) is divided into at least three sequentially connected independent processing compartments (3) by at least two partitions (2). The top edge of the partition (2) forms a weir (4) for overflow, and the height of each weir (4) increases sequentially along the material forward direction, so that the liquid level of each independent processing chamber (3) forms a stepped distribution.

2. The glass fiber cloth post-treatment impregnation tank according to claim 1, characterized in that, The tank (1) has a hollow sandwich structure in its tank wall, forming a closed flow channel for the circulation of cooling medium.

3. The glass fiber cloth post-treatment impregnation tank according to claim 1, characterized in that, At least one of the independent processing compartments (3) is connected to a water level control device (5).

4. The glass fiber cloth post-treatment impregnation tank according to claim 3, characterized in that, The third independent processing compartment (3) along the material advance direction is connected to a water level control device (5).

5. The glass fiber cloth post-treatment impregnation tank according to claim 3, characterized in that, The first and third independent processing compartments (3) along the material advance direction are connected to water level control devices (5).

6. The glass fiber cloth post-treatment impregnation tank according to claim 3, characterized in that, Each of the independent processing chambers (3) is connected to a water level control device (5).

7. The glass fiber cloth post-treatment impregnation tank according to any one of claims 3 to 6, characterized in that, The water level control device (5) includes a water supply pipeline (6) and a water level control valve (7) installed on the water supply pipeline (6). The water supply pipeline (6) is connected to a liquid source and is used to supply desizing liquid to the corresponding independent processing chamber (3).

8. The glass fiber cloth post-treatment impregnation tank according to claim 1, characterized in that, The bottom of the first independent processing compartment (3) along the material forward direction is provided with a drain outlet (8) and a drain valve (9).

9. The glass fiber cloth post-treatment impregnation tank according to claim 1, characterized in that, The weir (4) is serrated in shape.

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