Structure for preventing crystallization of liquid discharge main pipe of crude foil engine

Abstract

The utility model discloses a structure for preventing crystallization of a liquid discharging main pipe of a crude foil engine, which comprises an anode tank and a liquid feeding distributor arranged on the lower side of the anode tank, the anode tank is connected with a backflow main pipe through a backflow branch pipe, and the liquid feeding distributor is connected with a liquid discharging branch pipe communicated with the liquid discharging main pipe. The backflow main pipe and the liquid discharging main pipe are both communicated with the dirty liquid tank, a control valve is installed on the liquid discharging branch pipe, an anti-crystallization communicating pipe is arranged between the backflow branch pipe and the liquid discharging main pipe in a communicating mode, and the end, connected with the backflow branch pipe, of the anti-crystallization communicating pipe is higher than the end, connected with the liquid discharging main pipe, of the anti-crystallization communicating pipe. And by arranging the anti-crystallization communicating pipe, the fluid in the backflow branch pipe can be drained into the liquid discharging main pipe, so that the liquid discharging main pipe is always flushed by the fluid when the equipment normally operates, and the crystallization condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of foil making machine technology, specifically to a structure for preventing crystallization in the main discharge pipe of a foil making machine. Background Technology

[0002] The copper foil forming machine is a crucial piece of equipment in copper electrolysis. During operation, copper sulfate solution flows from the inlet into the upper liquid distributor, then into the anode tank for electrolysis, and finally into the main return pipe, and then into the waste liquid tank, in a continuous cycle. Throughout this process, the control valve on the unloading pipe remains closed, only opening when maintenance is required. During maintenance, the inlet stops supplying the copper sulfate solution, disrupting its balance and stopping the return flow. The control valve then opens, releasing the copper sulfate solution from the upper liquid distributor, through the unloading pipe into the main unloading pipe, and finally into the waste liquid tank. During normal operation, the control valve frequently fails to close completely, causing a small amount of copper sulfate solution to leak from the unloading pipe into the main unloading pipe. As the copper sulfate solution cools, crystals form, eventually clogging the entire main unloading pipe, rendering it unusable, severely impacting automation, and leading to raw material waste, downtime for maintenance, difficulties in personnel maintenance, and further copper sulfate solution leakage. Utility Model Content

[0003] This invention provides a structure for preventing crystallization in the main unloading pipe of a foil-making machine, which can solve the problem in existing equipment where the control valve on the unloading branch pipe does not close tightly, causing copper sulfate solution to flow into the main unloading pipe and cause blockage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a structure for preventing crystallization in the main unloading pipe of a foil-making machine, comprising an anode tank and a liquid distributor disposed on the lower side of the anode tank. The anode tank is connected to the main return pipe via a return branch pipe. The liquid distributor is connected to an unloading branch pipe that communicates with the main unloading pipe. Both the main return pipe and the main unloading pipe are connected to a sludge tank. A control valve is installed on the unloading branch pipe. An anti-crystallization connecting pipe is provided between the return branch pipe and the main unloading pipe. The end of the anti-crystallization connecting pipe connected to the return branch pipe is higher than the end connected to the main unloading pipe. By providing the anti-crystallization connecting pipe, the fluid in the return branch pipe can be diverted to the main unloading pipe, so that there is always fluid flushing in the main unloading pipe during normal operation of the equipment, and crystallization will not occur.

[0005] Preferably, the end of the unloading main pipe is provided with a venting structure, which can prevent negative pressure from being generated inside the unloading main pipe and affecting the flow of fluid.

[0006] Preferably, the ventilation structure is a vent pipe that is perpendicular to the unloading main pipe and faces upwards. It is easy to install and can prevent the fluid in the unloading main pipe from overflowing from the ventilation structure.

[0007] Preferably, the end of the anti-crystallization connecting pipe connected to the return branch pipe is provided with a receiving part that extends into the return branch pipe. The receiving part has an opening facing upward for receiving fluid in the return branch pipe. The receiving part can always receive a portion of the fluid, ensuring the flow rate of the fluid in the anti-crystallization connecting pipe.

[0008] Preferably, the end of the anti-crystallization connecting pipe connected to the unloading main pipe is provided with a flow delivery section extending downward into the unloading main pipe. The flow delivery section is provided with an opening facing the waste liquid tank. The flow delivery section can increase the flow rate and impact force of the fluid entering the unloading main pipe.

[0009] Preferably, both the receiving part and the delivery part are right-angle bends, which allows the fluid to smoothly enter and exit the anti-crystallization connecting pipe, thereby increasing the fluid velocity and impact force.

[0010] Preferably, the anti-crystallization connecting pipe is L-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] With a simple structure, a special anti-crystallization connecting pipe can be installed between the return pipe and the unloading main pipe without damaging the original structure. The copper sulfate solution circulating continuously in the return pipe creates a continuous high-impact, high-flow-rate flushing effect on the unloading main pipe, thereby preventing the copper sulfate solution from crystallizing inside the unloading main pipe, reducing malfunctions, and improving efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial structural diagram of the present invention.

[0015] Figure label:

[0016] 1. Anode tank; 11. Control valve; 2. Liquid distributor; 3. Liquid inlet; 4. Return branch pipe; 5. Return main pipe; 6. Unloading branch pipe; 7. Anti-crystallization connecting pipe; 71. Flow delivery section; 72. Flow receiving section; 8. Vent pipe; 9. Unloading main pipe; 10. Waste liquid tank. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] This invention addresses the problem in existing equipment where the control valve on the unloading branch pipe fails to close tightly, causing copper sulfate solution to flow into the main unloading pipe and cause blockage. Figure 1-2 As shown, the following technical solution is provided: a structure for preventing crystallization in the main unloading pipe of a foil-making machine, including an anode tank 1 and a liquid distributor 2 disposed on the lower side of the anode tank 1. The anode tank 1 is connected to the main return pipe 5 via a return branch pipe 4. The liquid distributor 2 is connected to an unloading branch pipe 6 that communicates with the main unloading pipe 9. Both the main return pipe 5 and the main unloading pipe 9 are connected to a sludge tank 10. A control valve 11 is installed on the unloading branch pipe 6. An anti-crystallization connecting pipe 7 is provided between the return branch pipe 4 and the main unloading pipe 9. The end of the anti-crystallization connecting pipe 7 connected to the return branch pipe 4 is higher than the end connected to the main unloading pipe 9. By setting the anti-crystallization connecting pipe 7, the fluid in the return branch pipe 4 can be diverted to the main unloading pipe 9, so that there is always fluid in the main unloading pipe 9 for flushing during normal operation of the equipment, and crystallization will not occur.

[0019] Specifically, the liquid distributor 2 is equipped with an inlet 3. Copper sulfate solution enters the liquid distributor 2 through the inlet 3 and continuously flows into the anode tank 1. The copper sulfate solution used in the anode tank 1 can be returned to the main return pipe 5 through the return pipe 4. When the machine is shut down for maintenance, the liquid supply through the inlet 3 is stopped, the control valve 11 is opened, and the residual copper sulfate solution in the anode tank 1 can enter the main discharge pipe 9 through the discharge pipe 6. The copper sulfate solution in both the discharge pipe 9 and the return pipe 5 is returned to the waste liquid tank 10 for collection.

[0020] The wastewater tank 10 can be connected to the inlet 3 via a liquid pump to achieve the recycling of copper sulfate solution. In this embodiment, the control valve 11 can be a pneumatic ball valve or an electric butterfly valve. Due to the installation of the anti-crystallization connecting pipe 7, the sealing requirements of the control valve 11 are greatly reduced.

[0021] To facilitate control of the liquid flow rate in the anti-crystallization connecting pipe 7, a flow regulating valve can be installed, or a structure that can increase the liquid flow rate, such as a Venturi structure, can be installed.

[0022] The anti-crystallization connecting pipe 7 is L-shaped and can be composed of two pipes connected by an elbow, making installation convenient.

[0023] In this embodiment, a venting structure is provided at the end of the unloading main pipe 9. This venting structure prevents negative pressure from forming inside the unloading main pipe, which would affect the flow of fluid. Specifically, the venting structure is a vent pipe 8 that is perpendicular to the unloading main pipe 9 and faces upwards. It is easy to install and prevents fluid in the unloading main pipe 9 from overflowing from the venting structure. The vent pipe 8 is detachably connected to the unloading main pipe 9, and a filter screen can be installed at the opening to prevent external debris from entering the unloading main pipe 9.

[0024] In this embodiment, the end of the anti-crystallization connecting pipe 7 connected to the return branch pipe 4 is provided with a receiving portion 72 extending into the return branch pipe 4. The receiving portion 72 has an upward-facing opening for receiving fluid from the return branch pipe 4. The receiving portion 72 can always receive a portion of the fluid, ensuring the flow rate of the fluid in the anti-crystallization connecting pipe 7. The receiving portion 72 and the anti-crystallization connecting pipe 7 are an integral structure, inserted radially from the side wall of the return branch pipe 4. The insertion distance determines the flow rate of the fluid entering the receiving portion 72. Generally, the insertion distance of the receiving portion 72 is greater than half the diameter of the return branch pipe 4. At the same time, the end of the anti-crystallization connecting pipe 7 connected to the unloading main pipe 9 is provided with a flow delivery portion 71 extending downward into the unloading main pipe 9. The flow delivery portion 71 has an opening facing the waste tank 10. The flow delivery portion 71 can increase the flow velocity and impact force of the fluid entering the unloading main pipe 9.

[0025] In this embodiment, both the receiving part 72 and the delivery part 71 are right-angle bends, which allow the fluid to smoothly enter and exit the anti-crystallization connecting pipe 7, thereby increasing the fluid velocity and impact force.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A structure for preventing crystallization in the main discharge pipe of a foil-making machine, comprising an anode tank (1) and a liquid distributor (2) disposed on the lower side of the anode tank (1), wherein the anode tank (1) is connected to the main return pipe (5) via a return branch pipe (4), and the liquid distributor (2) is connected to a discharge branch pipe (6) communicating with the main discharge pipe (9), wherein both the return pipe (5) and the discharge pipe (9) are connected to a waste liquid tank (10), and a control valve (11) is installed on the discharge branch pipe (6), characterized in that, An anti-crystallization connecting pipe (7) is provided between the reflux branch pipe (4) and the unloading main pipe (9). The end of the anti-crystallization connecting pipe (7) connected to the reflux branch pipe (4) is higher than the end connected to the unloading main pipe (9).

2. The anti-crystallization structure of the main unloading pipe of the foil-making machine according to claim 1, characterized in that: The end of the unloading main pipe (9) is provided with a ventilation structure.

3. The anti-crystallization structure of the main unloading pipe of the foil-making machine according to claim 2, characterized in that: The ventilation structure is a ventilation pipe (8) that is perpendicular to the unloading main pipe (9) and faces upward.

4. The anti-crystallization structure of the main unloading pipe of the foil-making machine according to claim 1, characterized in that: The anti-crystallization connecting pipe (7) is connected to the return pipe (4) at one end, and a receiving part (72) is provided that extends into the return pipe (4). The receiving part (72) is provided with an opening facing upward for receiving fluid in the return pipe (4).

5. The anti-crystallization structure of the main unloading pipe of the foil-making machine according to claim 4, characterized in that: The anti-crystallization connecting pipe (7) is connected to the unloading main pipe (9) at one end and is provided with a flow delivery part (71) extending downward into the unloading main pipe (9). The flow delivery part (71) is provided with an opening facing the waste liquid tank (10).

6. The anti-crystallization structure of the main unloading pipe of the foil-making machine according to claim 5, characterized in that: Both the receiving part (72) and the sending part (71) are right-angle bends.

7. The anti-crystallization structure of the main unloading pipe of the foil-making machine according to claim 1, characterized in that, The anti-crystallization connecting pipe (7) is L-shaped.

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