Automatic additive adding system

Abstract

The utility model discloses an automatic assistant adding system, and relates to the technical field of assistant filling equipment, one side of the bottom of a storage tank is provided with an electric pump in a conducting way, one group of liquid outlets of the electric pump is connected with a supply pipeline in a conducting way, and the other group of liquid outlets of the electric pump is connected with a return pipeline extending into the storage tank in a conducting way; a delivery line connected to the supply line on the electric pump is also included. According to the design, the storage tank is used as a storage container of the additive, and the electric pump is used as a pumping component, so that when the backflow pipeline is electromagnetically conducted, the additive in the storage tank is drawn to circularly flow up and down, and the stirring paddle and the cleaning scraper blade are pushed to operate in a combined linkage manner, so that the additive in the storage tank is kept to flow dynamically; according to the auxiliary adding device, the auxiliary in the storage tank is pumped out, the auxiliary is automatically added in a mechanical adding mode based on an external conveying pipeline and cut-off and conduction of various parts on the pipeline, the accuracy is higher, and adding is faster and more efficient.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary agent filling equipment, in particular to an automatic auxiliary agent adding system. Background Art

[0002] Waterproofing agents and oil-proofing agents are a type of chemical admixture and are essential additives in the paper and plastic production process. Adding waterproofing agents and oil-proofing agents to paper and plastic is crucial to improving the waterproof and oil-proof properties of pulp molded products, allowing the products to have waterproof and oil-proof functions to meet market demand. In addition, by adding specific functional chemicals such as waterproofing agents, oil-proofing agents and wet strength agents, the waterproof and oil-proof properties of paper can be enhanced, making pulp molded tableware less susceptible to penetration when encountering water or grease, thereby maintaining its structural integrity and ease of use.

[0003] During the paper and plastic production process, oil and water repellents are often added to the pulp suspension to improve the physical and chemical properties of the finished paper and plastic. However, existing methods typically involve manual mixing and addition, which is cumbersome and lacks precision, often failing to maintain stability across numerous production lines. To address this issue, those skilled in the art have developed an automated additive addition system to address the issues raised in the background art. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides an automatic additive addition system, which solves the problem that the existing additive addition process is complicated and has poor accuracy as mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic additive adding system, comprising a storage tank;

[0006] An electric pump is installed on one side of the bottom of the storage tank, one set of discharge ports of the electric pump is connected to a supply pipeline, and another set of discharge ports of the electric pump is connected to a return pipeline extending into the storage tank;

[0007] A brake shaft is installed in the middle of the tank body of the storage tank, and the shaft of the brake shaft is provided with a stirring paddle, a stirring paddle and a cleaning scraper in sequence from top to bottom.

[0008] As a further technical solution of the present invention: the reflux pipeline includes a reflux pipe and a reflux solenoid valve installed on the reflux pipe.

[0009] As a further technical solution of the present invention: the supply pipeline includes a supply pipe and a supply solenoid valve installed on the supply pipe.

[0010] As a further technical solution of the present invention: the paddle is a straight blade structure, and the discharge port of the reflux pipeline is directly opposite to the blade of the paddle.

[0011] As a further technical solution of the present invention: the number of the stirring paddles is not less than two groups, and the cleaning scraper is in contact with the tank wall of the storage tank.

[0012] As a further technical solution of the present invention: a liquid level gauge is installed inside the tank body of the storage tank opposite to the electric pump, and the liquid level gauge is an ultrasonic liquid level gauge.

[0013] As a further technical solution of the utility model: it also includes a delivery pipeline connected to the supply pipeline on the electric pump, and the delivery pipeline is sequentially connected with a drain valve, an ultrasonic flow meter, a back pressure valve, and a manual valve along its flow direction.

[0014] As a further technical solution of the present invention: the inlet of the electric pump is provided with a flushing pipe.

[0015] The utility model provides an automatic additive addition system, which has the following beneficial effects compared with the prior art:

[0016] The additive adding system of this design is based on a storage tank as a storage container for additives, and uses an electric pump as a pumping component. When the electromagnetic conduction of the return pipeline is on, the additive in the storage tank is pumped up and down to circulate, and the extracted additive is converted into thrust to drive the combined linkage operation of the stirring paddle and the cleaning scraper, so that the additive in the storage tank maintains dynamic flow, avoiding static stratification and adhesion to the inner wall. When the supply pipeline is on, the additive in the storage tank is extracted, and based on the cut-off conduction of the external conveying pipeline and various components on the pipeline, the additive is automatically added to the paper-plastic suspension slurry in a mechanical manner. It has higher accuracy and lower manual control intensity, and the addition is faster and more efficient, which can supply the needs of multiple production lines at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of an automatic additive addition system;

[0018] Figure 2 A first cross-sectional view of an automatic additive adding system;

[0019] Figure 3 A second cross-sectional view of an automatic additive addition system;

[0020] Figure 4 This is a flow chart of an automatic additive addition system.

[0021] In the figure: 1. Storage tank; 2. Feeding port; 3. Electric pump; 4. Return pipe; 41. Return pipe; 42. Return solenoid valve; 5. Supply pipe; 51. Supply pipe; 52. Supply solenoid valve; 6. Liquid level gauge; 7. Brake shaft; 8. Paddle; 9. Stirring paddle; 10. Cleaning scraper. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-3 The utility model provides a technical solution for an automatic additive addition system: an automatic additive addition system, comprising a storage tank 1, an electric pump 3 is installed on one side of the bottom of the storage tank 1, one set of discharge ports of the electric pump 3 is connected to a supply pipeline 5, the supply pipeline 5 comprises a supply pipe 51 and a supply solenoid valve 52 installed on the supply pipe 51, and the supply pipe 5 is kept conductive by opening the switch of the supply solenoid valve 52, and then when the electric pump 3 is working, the additive in the storage tank 1 is extracted, and is mechanically supplied and transported in a quantitative form through the corresponding pipeline, and is added to the paper and plastic production equipment to perform autonomous additive addition.

[0024] Another set of discharge ports of the electric pump 3 is connected to a reflux line 4 extending to the interior of the storage tank 1. The reflux line 4 includes a reflux pipe 41 and a reflux solenoid valve 42 installed on the reflux pipe 41. By opening the valve switch of the reflux solenoid valve 42, the reflux line 4 is connected. Then, when the electric pump 3 is working, the auxiliary agent at the bottom of the storage tank 1 is circulated and pumped up to the upper part of the storage tank 1, forming an upper and lower dynamic circulation flow state to improve the dynamic uniformity of the auxiliary agent. While the auxiliary agent is refluxing, the thrust generated by the pump can be used as a power source to drive the paddle 8 to rotate, thereby driving the corresponding components to operate automatically.

[0025] A brake shaft 7 is installed in the middle of the tank body of the storage tank 1. The shaft of the brake shaft 7 is provided with a paddle 8, a stirring paddle 9, and a cleaning scraper 10 from top to bottom. The paddle 8 is a straight blade structure. The discharge port of the reflux pipe 4 is opposite to the blade of the paddle 8. The number of stirring paddles 9 is not less than two groups. The cleaning scraper 10 is in contact with the tank wall of the storage tank 1. When the paddle 8 rotates, it drives the brake shaft 7 to rotate, and then drives the combination of the stirring paddle 9 and the cleaning scraper 10 to operate in a linked manner. By utilizing the stirring drive of the stirring paddle 9, the auxiliary agent is stirred and mixed. By utilizing the scraping of the cleaning scraper 10, the tank wall is circulated and dynamically cleaned, so that the auxiliary agent maintains good dynamic flow properties and avoids the occurrence of static stratification and other phenomena.

[0026] A liquid level gauge 6 is installed inside the tank body of the storage tank 1 opposite to the electric pump 3, and the liquid level gauge 6 is an ultrasonic liquid level gauge. The electric pump 3 can use an electric diaphragm pump. The flow rate of each pumping of the electric diaphragm pump is fixed, which can achieve accurate additive addition, effectively control the addition amount of various additives, and reduce costs. By selecting the liquid level gauge 6 in the form of an ultrasonic liquid level gauge, precise control can be achieved. The ultrasonic flowmeter can be accurate to 1 ml. The addition flow rate is pre-set. When the flow rate reaches the set requirement, the start valve will automatically close, the electric diaphragm pump will stop, and the entire additive addition process will stop. By interlocking the electric pump 3 with the liquid level gauge 6, when the liquid level in the storage tank 1 is too low, the electric pump 3 will stop and alarm, thereby playing a role in liquid level monitoring.

[0027] See also Figure 4 An automatic additive adding system also includes a delivery pipeline connected to the supply pipeline 5 on the electric pump 3, and the delivery pipeline is sequentially connected with a drain valve, an ultrasonic flowmeter, a back pressure valve, and a manual valve along its flow direction. By adding corresponding valve components and metering components to the additive delivery pipeline, the precise addition of additives and subsequent self-cleaning can be better controlled.

[0028] The inlet of the electric pump 3 is equipped with a flushing pipe. As the additive is added for a long time, crystallization and solidification will occur in the pipe, blocking the pipe and affecting the addition amount. By adding a flushing pipe at the inlet of the electric pump 3 and passing tap water into it, the electric diaphragm pump and the entire addition pipe can be flushed regularly with tap water.

[0029] The working principle of the utility model is as follows: when the auxiliary agent adding system is used to automatically add auxiliary agents, two groups of storage tanks 1 are used as storage containers for the auxiliary agents. The auxiliary agents used in the two groups of storage tanks 1 are oil repellent and waterproofing agents, which are stored in their respective storage tanks 1. There is a liquid level gauge 6 in the storage tank 1. Based on the linkage between the liquid level gauge 6 and the electric pump 3, when the liquid level is low, the pump will stop and cannot be started, so as to prevent the low liquid level from causing inaccurate addition amount;

[0030] In addition, in the process of using the storage tank 1 to store the auxiliary agent, the corresponding self-cleaning and filling processes can be performed based on the conduction and opening and closing of the return pipe 4 and the supply pipe 5. Then, when the return pipe 4 is connected, the electric pump 3 is used to circulate the auxiliary agent at the bottom of the storage tank 1 and transport it to the upper part of the storage tank 1, forming an up-and-down dynamic circulation flow state. While the auxiliary agent is refluxing, the thrust generated by the pump can be used as a power source to drive the paddle 8 to rotate, drive the brake shaft 7 to rotate, and then drive the combination of the stirring paddle 9 and the cleaning scraper 10 to operate in a linked manner, so as to perform self-stirring, mixing and cleaning on the auxiliary agent in the storage tank 1 in the up-and-down and horizontal directions, thereby ensuring the uniformity of the auxiliary agent.

[0031] When the supply line 5 is connected, the electric pump 3 is used to pump out the additive in the storage tank 1 and pump it quantitatively along the delivery pipeline (see the attached manual). Figure 4 As shown), it has six adding systems, A / B / C / D / E / F six adding points, each of which is used to add oil repellent and waterproofing agent respectively, and the oil repellent and waterproofing agent storage tank 1 of the six adding points is shared, and the additives are quantitatively added by pump filling;

[0032] The addition port is remotely controlled by a pneumatic stop valve. The additive flows from the storage tank to the equipment under atmospheric pressure. Before formal dosing, the inlet and outlet pipes of the equipment are filled with liquid. The DCS control room sends a control signal to start the pump, and the liquid level meter 6 measures the addition amount (1 pulse represents 1ml flow). To ensure dosing accuracy, the dosing flow rate is faster in the front section, and the frequency is reduced to slow down the dosing speed in the back section when it approaches the specified dosing amount, so as to better reduce the error. When the specified dosing amount is reached, the pump is stopped and feedback is sent to the DCS control room.

[0033] Furthermore, after the subsequent addition of auxiliary agents, when the pipeline needs to be cleaned regularly, the pneumatic stop valve at the auxiliary agent inlet is closed before flushing the pipeline, the pneumatic stop valve at the auxiliary agent outlet is opened, the water inlet valve is opened, the electric pump 3 is started, and the water inlet valve is closed after flushing for a certain period of time. At this time, there is water remaining in the pipeline of the dosing equipment. The residual cleaning water in the pipeline is discharged from the equipment through the pump outlet drain valve and the metering pump is started. After each cleaning of the pipeline, the program will set a part of the first dosing amount to be added more in order to accurately measure the amount of liquid medicine. The subsequent dosing amount can be directly added normally without flushing the pipeline.

[0034] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An automatic additive adding system, characterized in that: including a storage tank (1); An electric pump (3) is conductively installed on one side of the bottom of the storage tank (1), one set of discharge ports of the electric pump (3) is conductively connected to a supply pipeline (5), and another set of discharge ports of the electric pump (3) is conductively connected to a return pipeline (4) extending into the interior of the storage tank (1); A brake shaft (7) is installed in the middle of the tank body of the storage tank (1), and the shaft of the brake shaft (7) is provided with a stirring paddle (8), a stirring paddle (9), and a cleaning scraper (10) in sequence from top to bottom.

2. The automatic additive adding system according to claim 1, characterized in that: The return pipeline (4) comprises a return pipe (41) and a return solenoid valve (42) installed on the return pipe (41).

3. The automatic additive adding system according to claim 1, characterized in that: The supply pipeline (5) comprises a supply pipeline (51) and a supply solenoid valve (52) installed on the supply pipeline (51).

4. The automatic additive adding system according to claim 1, characterized in that: The paddle (8) is a straight blade structure, and the discharge port of the return line (4) is directly opposite to the blade of the paddle (8).

5. The automatic additive adding system according to claim 1, characterized in that: The number of the stirring paddles (9) is no less than two groups, and the cleaning scraper (10) is in contact with the tank wall of the storage tank (1).

6. The automatic additive adding system according to claim 1, characterized in that: A liquid level meter (6) is installed inside the tank body of the storage tank (1) opposite to the electric pump (3), and the liquid level meter (6) is an ultrasonic liquid level meter.

7. The automatic additive adding system according to claim 1, characterized in that: It also includes a delivery pipeline connected to the supply pipeline (5) on the electric pump (3), and the delivery pipeline is sequentially connected to a sewage valve, an ultrasonic flow meter, a back pressure valve, and a manual valve along its flow direction.

8. The automatic additive adding system according to claim 7, characterized in that: The inlet of the electric pump (3) is provided with a flushing pipeline.

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