Purified phosphoric acid filling system

Abstract

The utility model discloses a purified phosphoric acid filling system. The device comprises a filling header pipe, a purified phosphoric acid storage tank, a desalted water storage tank, a first pneumatic valve, a second pneumatic valve, a control device, a desalted water flow meter, a purified phosphoric acid flow meter and a third pneumatic valve, the desalted water storage tank is communicated with the filling header pipe through a first branch pipe, the first pneumatic valve and the desalted water flow meter are arranged on the first branch pipe, and the purified phosphoric acid storage tank is communicated with the filling header pipe through a second branch pipe; the second pneumatic valve and the purified phosphoric acid flow meter are arranged on the second branch pipe, the third pneumatic valve is arranged on the filling main pipe, and the filling main pipe is used for filling phosphoric acid into a tank car.

Description

Technical Field

[0001] The present application relates to the technical field of phosphoric acid, and in particular to a purified phosphoric acid filling system. Background Art

[0002] In the current state of the art, when producing 85% purified phosphoric acid, operators typically manually fill a fixed amount of purified phosphoric acid into a tanker truck. Based on the customer's desired concentration, operators then calculate and add the appropriate amount of desalted water using a spreadsheet to achieve the desired concentration. This traditional method has the following main drawbacks:

[0003] High operator labor intensity and low filling efficiency: Because the entire process relies on manual operation, especially when different concentrations are required, operators need to constantly manually adjust the filling volume and ratio, which is labor-intensive and inefficient. Furthermore, continuous filling cannot be achieved when customers demand different concentrations, further affecting production efficiency.

[0004] Manual proportioning poses safety risks: The concentration adjustment of purified phosphoric acid relies entirely on manual operation by the operator, which may lead to errors due to improper operation or negligence, thus posing potential safety hazards.

[0005] Unstable concentration and weight accuracy creates the risk of quality incidents: Manual filling and proportioning have low precision, making errors in weight and concentration control particularly prone to occur. This can lead not only to unstable product quality but also to related quality incidents, resulting in unnecessary losses for the company. Utility Model Content

[0006] In order to solve the above technical problems, the present application provides a purified phosphoric acid filling system, comprising:

[0007] Filling main pipe, purified phosphoric acid storage tank, desalted water storage tank, first pneumatic valve, second pneumatic valve, control device, desalted water flow meter, purified phosphoric acid flow meter and third pneumatic valve;

[0008] The desalted water storage tank is connected to the filling main pipe through a first branch pipe, the first pneumatic valve and the desalted water flowmeter are arranged on the first branch pipe, the purified phosphoric acid storage tank is connected to the filling main pipe through a second branch pipe, the second pneumatic valve and the purified phosphoric acid flowmeter are arranged on the second branch pipe, and the third pneumatic valve is arranged on the filling main pipe. The filling main pipe is used to fill phosphoric acid into the tank truck.

[0009] Optionally, a mixing tank is further included, wherein the first branch pipe and the second branch pipe are connected to the water inlet of the mixing tank, and the filling main pipe is connected to the water outlet of the mixing tank.

[0010] Optionally, a filling head is also included, which is connected to the outlet of the filling main pipe.

[0011] Optionally, the control device includes a controller and a display screen, and the controller is used to control the opening and closing states of the first pneumatic valve, the second pneumatic valve and the third pneumatic valve, and calculate the mixing ratio based on real-time data of the desalted water flowmeter and the purified phosphoric acid flowmeter.

[0012] Optionally, the controller is connected to a remote monitoring system.

[0013] Optionally, the filling head is made of corrosion-resistant material.

[0014] Optionally, a stirring device is provided inside the mixing tank for uniformly mixing the purified phosphoric acid and the desalted water.

[0015] Optionally, the controller is provided with an abnormal alarm module. When the flow meter detects abnormal flow, the controller automatically sends an alarm signal and closes the relevant pneumatic valve.

[0016] It can be seen from the above technical solutions that this application has the following advantages:

[0017] This purified phosphoric acid filling system has the following advantages:

[0018] 1. The opening and closing status of the pneumatic valve is controlled by the control device, which realizes the automatic proportioning and filling of desalted water and purified phosphoric acid, reduces the complexity and time cost of manual operation, and significantly improves production efficiency.

[0019] 2. The desalted water flowmeter and purified phosphoric acid flowmeter equipped in the system can monitor flow data in real time, ensuring the accurate ratio of desalted water and purified phosphoric acid, thereby achieving precise control of product concentration, meeting customer needs for phosphoric acid of different concentrations, and reducing the risk of quality accidents caused by incorrect ratios.

[0020] 3. The traditional manual filling method requires a lot of manpower input, while the automated design of this system greatly reduces the labor intensity of operators, making the entire filling process easier and more efficient.

[0021] 4. The use of pneumatic valves reduces the safety hazards caused by manual operation, especially when handling corrosive purified phosphoric acid. The automated system can better ensure the safety of operators.

[0022] 5. Due to the automation and precise control of the system, it is possible to achieve continuous production of purified phosphoric acid of different concentrations without the need for readjustment and manual filling each time, thereby greatly improving the flexibility to meet the diverse needs of customers.

[0023] 6. Precise flow control and automated proportioning make the use of raw materials more accurate, reducing waste caused by inaccurate proportions and thus reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of an embodiment of the purified phosphoric acid filling system provided in this application;

[0025] Figure 2 This is a schematic structural diagram of another embodiment of the purified phosphoric acid filling system provided in this application. DETAILED DESCRIPTION

[0026] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only used to illustrate the relative position relationship between the various components or components, and do not particularly limit the specific installation orientation of the various components or components.

[0027] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0029] In addition, the structures, proportions, sizes, etc. drawn in the drawings in this application are only used to match the contents disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0030] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in this application. Obviously, the embodiments described are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See Figure 1 as well as Figure 2 The present application provides an embodiment of a purified phosphoric acid filling system, which includes:

[0032] Filling main pipe 01, purified phosphoric acid storage tank 02, desalted water storage tank 03, first pneumatic valve 04, second pneumatic valve 05, control device 06, desalted water flow meter 07, purified phosphoric acid flow meter 08 and third pneumatic valve 09;

[0033] The desalted water storage tank 03 is connected to the filling main pipe 01 through a first branch pipe 10, the first pneumatic valve 04 and the desalted water flowmeter 07 are arranged on the first branch pipe 10, the purified phosphoric acid storage tank 02 is connected to the filling main pipe 01 through a second branch pipe 11, the second pneumatic valve 05 and the purified phosphoric acid flowmeter 08 are arranged on the second branch pipe 11, and the third pneumatic valve 09 is arranged on the filling main pipe 01. The filling main pipe 01 is used to fill phosphoric acid into the tank truck.

[0034] The purified phosphoric acid filling system mainly includes the following components:

[0035] Filling Manifold 01: This is the core pipeline of the entire system, used to transport the final proportioned phosphoric acid to the tank truck. All liquid flow and proportioning operations are combined here.

[0036] Purified phosphoric acid storage tank 02: used to store purified phosphoric acid with a concentration of 85% or other concentrations and transport it to the filling main pipe 01 through a pipeline.

[0037] Desalted water storage tank 03: used to store desalted water. The desalted water is mixed with purified phosphoric acid through pipelines to adjust the concentration of the final product.

[0038] The first pneumatic valve 04 is installed on the first branch pipe 10 of the desalted water storage tank 03 and is used to control the inflow of desalted water. By controlling the opening and closing of the first pneumatic valve 04, the amount of desalted water entering the filling main pipe 01 can be accurately adjusted.

[0039] Second pneumatic valve 05: Installed on the second branch pipe 11 of purified phosphoric acid storage tank 02, it is used to control the inflow of purified phosphoric acid. Similar to first pneumatic valve 04, second pneumatic valve 05 is used to adjust the amount of purified phosphoric acid entering filling main pipe 01.

[0040] Control Unit 06: This device manages and coordinates the operation of the various pneumatic valves in the system. By receiving data from the flowmeter, Control Unit 06 precisely controls the ratio of desalted water to purified phosphoric acid, ensuring the output phosphoric acid concentration meets the required level.

[0041] Desalted water flow meter 07: Installed on the first branch pipe 10, it is used to monitor the flow data of desalted water in real time and transmit the data to the control device 06. Based on this data, the control device 06 can adjust the opening of the first pneumatic valve 04 to ensure the accurate flow rate of desalted water.

[0042] Purified phosphoric acid flowmeter 08: Installed on the second branch pipe 11, it monitors the flow of purified phosphoric acid. It works in conjunction with desalted water flowmeter 07 to ensure the mixing ratio of the two liquids meets the set standard.

[0043] The third pneumatic valve 09 is installed on the filling main pipe 01 and controls the liquid output of the entire system. The opening and closing of this valve determines when the final proportion of phosphoric acid is loaded into the tank truck.

[0044] In actual operation, the system operates as follows:

[0045] When phosphoric acid filling is required, control device 06 is activated, and the first and second pneumatic valves 04 and 05 open in response to the control device 06's command. Desalted water and purified phosphoric acid flow from their respective storage tanks through corresponding branch pipes into the filling manifold 01. During this process, desalted water flowmeter 07 and purified phosphoric acid flowmeter 08 monitor their respective flow rates and provide real-time feedback to control device 06.

[0046] Control device 06 analyzes the flowmeter data. If it detects a flow deviation, it immediately adjusts the openings of first and second pneumatic valves 04 and 05 to ensure the flow rates of the two liquids meet the predetermined ratio. Through this real-time monitoring and adjustment, the system ensures that the concentration of the mixed liquid entering filling manifold 01 remains within the desired range.

[0047] The regulated desalted water and purified phosphoric acid are fully mixed in the filling main pipe 01. At this time, the third pneumatic valve 09 is still in a closed state to ensure that the liquid in the mixing process will not leak out.

[0048] Once the mixing is completed and the system confirms that the concentration of the mixed liquid meets the standard, the control device 06 will instruct the third pneumatic valve 09 to open, and the mixed phosphoric acid will be transported to the tank truck through the filling main pipe 01 for filling.

[0049] When the tank truck is completely filled or reaches the set filling volume, the control device 06 will close the third pneumatic valve 09 and terminate the operation of the first pneumatic valve 04 and the second pneumatic valve 05, and the entire filling process ends.

[0050] The design of this embodiment embodies the characteristics of high efficiency, precision and safety, and is particularly suitable for industrial scenarios that require frequent adjustment of phosphoric acid concentration. Through automated control and precise flow monitoring, errors in manual operation are reduced, production efficiency is improved, and safety risks are reduced. The system is particularly suitable for large-scale industrial production lines or factories that need to flexibly respond to customer customization needs. Optionally, it also includes a mixing tank 12, the first branch pipe 10 and the second branch pipe 11 are connected to the water inlet of the mixing tank 12, and the filling main pipe 01 is connected to the water outlet of the mixing tank 12.

[0051] In an optional embodiment, a filling head 13 is further included, and the filling head 13 is connected to the outlet of the filling main pipe 01.

[0052] In an optional embodiment, the purified phosphoric acid filling system further includes a filling head 13 , which is connected to the outlet of the filling main pipe 01 .

[0053] In this embodiment, the filling head 13 is a component installed at the outlet end of the filling main pipe 01. Its main function is to transport the mixed phosphoric acid liquid in the filling main pipe 01 to a tank truck or other container at a suitable flow rate and pressure.

[0054] In this embodiment, after the system has completed the proportioning and uniform mixing of phosphoric acid and desalted water, the mixed liquid is transported through the filling manifold 01 to the filling head 13. The filling head 13 is fixed to the outlet of the filling manifold 01 via a connecting structure and docked with a tank truck or other target container. At this point, the control device 06 controls the opening of the third pneumatic valve 09, allowing the liquid to flow through the filling head 13 into the tank truck.

[0055] The filling head 13 prevents liquid overflow during the filling process due to excessive pressure or rapid flow. The flow rate can be adjusted as needed to accommodate the capacity and filling requirements of different tank trucks or containers. When the set filling volume is reached, the filling head 13 automatically closes, stopping the flow of liquid and ensuring precise control of each filling volume.

[0056] In an optional embodiment, the control device 06 includes a controller and a display screen, and the controller is used to control the opening and closing states of the first pneumatic valve 04, the second pneumatic valve 05 and the third pneumatic valve 09, and calculate the mixing ratio based on the real-time data of the desalted water flowmeter 07 and the purified phosphoric acid flowmeter 08.

[0057] In an optional embodiment, the control device 06 in the purified phosphoric acid filling system further includes a controller and a display screen. The following is a detailed description of this optional embodiment:

[0058] The controller is the core component of the system, responsible for controlling the entire filling process. Specifically, it receives and processes real-time data from the desalted water flowmeter 07 and the purified phosphoric acid flowmeter 08, and calculates and adjusts the flow rates of the desalted water and purified phosphoric acid according to the preset filling ratio requirements.

[0059] Based on the calculation results, the controller can accurately control the opening and closing states of the first pneumatic valve 04, the second pneumatic valve 05 and the third pneumatic valve 09, thereby achieving precise control of the flow of desalted water and purified phosphoric acid, ensuring that the concentration of the final mixed liquid meets customer needs.

[0060] The display screen is used to display the operating status of the system in real time, including the values ​​of the desalted water flow meter 07 and the purified phosphoric acid flow meter 08, the opening and closing status of each valve, the current mixing ratio, and other key parameters of the system.

[0061] The display screen also provides a user interface through which operators can set and adjust filling parameters, such as changing the mixing ratio and setting the target filling volume. The design of the display screen should take into account the user's operating habits and convenience, making the interface simple, easy to understand, and simple to operate.

[0062] In an optional embodiment, the controller is connected to a remote monitoring system.

[0063] In an optional embodiment, the controller is further connected to a remote monitoring system. The following is a detailed description of this optional embodiment:

[0064] The controller is connected to a remote monitoring system via the Internet, transmitting real-time operational data about the filling system. This data includes flow rates of desalinated water and purified phosphoric acid, pneumatic valve status, mixing ratio, filling progress, and system alarms.

[0065] The remote monitoring system allows real-time monitoring of the filling system's operating status from a remote monitoring center or office. This allows managers and technicians to understand the system's operating status in real time and make necessary adjustments without having to visit the site.

[0066] The remote monitoring system can exchange data with the controller via the network, adjusting filling parameters based on on-site conditions. For example, remote operators can adjust the mixing ratio, change the opening and closing status of valves, and modify the target filling volume. This remote control capability greatly enhances the system's flexibility and emergency response capabilities.

[0067] When an abnormal situation occurs in the system (such as flow rate exceeding the set range or valve failure), the remote monitoring system will automatically send an alarm message to relevant personnel to facilitate timely processing and maintenance, reducing downtime and production losses caused by the failure.

[0068] The remote monitoring system can continuously record the historical operating data of the filling system. This data can be used to analyze the performance and trends of the system and help optimize the production process.

[0069] By analyzing historical data, the system can identify potential performance issues or operational improvement points, thereby continuously optimizing the filling process and improving the efficiency and safety of the system.

[0070] In an optional embodiment, the filling head 13 is made of corrosion-resistant material.

[0071] The filling head 13 is made of corrosion-resistant materials such as stainless steel, polytetrafluoroethylene (PTFE) or other high-performance alloy materials. These materials have excellent acid and alkali resistance and corrosion resistance, and can maintain stable physical and chemical properties during long-term use.

[0072] Since purified phosphoric acid is a corrosive chemical substance, the filling head 13 is made of corrosion-resistant material, which can effectively prevent the filling head 13 from being corroded or damaged when in contact with phosphoric acid, thereby extending the service life of the equipment.

[0073] In an optional embodiment, a stirring device 14 is provided inside the mixing tank 12 for uniformly mixing the purified phosphoric acid and the desalted water.

[0074] In an optional embodiment, a stirring device 14 is provided inside the mixing tank 12 for uniformly mixing the purified phosphoric acid and the desalted water.

[0075] Blade agitator: The stirring device 14 can be a blade agitator, which can be composed of several stirring blades and a stirring shaft. The stirring blades can be straight blades, spiral blades or paddle blades, and are designed according to the shape of the mixing tank 12 and the mixing requirements.

[0076] Driving device: The stirring device 14 is driven by an electric motor, which is connected to the stirring shaft through a transmission device (such as a reducer or gears) to drive the stirring blades to rotate, thereby stirring the materials in the mixing tank 12.

[0077] Through the continuous rotation of the stirring device 14 and the efficient stirring of the blades, the purified phosphoric acid and the desalted water can be mixed quickly and evenly in the mixing tank 12, ensuring that the final mixed solution reaches a predetermined concentration and uniformity.

[0078] During the mixing process, the stirring device 14 can keep the liquid in the mixing tank 12 in a moving state, preventing the stratification and precipitation of the purified phosphoric acid and the desalted water, and further ensuring the consistency of product quality.

[0079] The motor of the stirring device 14 can have a variable frequency speed regulation function, allowing the operator to adjust the stirring speed according to actual needs. Mixtures of different concentrations have different stirring speed requirements. The variable speed function can improve the adaptability and flexibility of the system.

[0080] The stirring device 14 can also be connected to a controller, which can automatically adjust the stirring speed and time to achieve precise control of the mixing process and ensure that the final product meets quality requirements.

[0081] In an optional embodiment, the controller is provided with an abnormal alarm module. When the flow meter detects abnormal flow, the controller automatically sends an alarm signal and closes the relevant pneumatic valve.

[0082] In an optional embodiment, the controller is provided with an abnormality alarm module. When the flow meter detects an abnormal flow, the controller automatically issues an alarm signal and closes the relevant pneumatic valve. The following is a detailed description of this optional embodiment:

[0083] Sensor input interface: The abnormal alarm module is connected to the desalted water flow meter 07 and the purified phosphoric acid flow meter 08 to receive real-time flow data. When the flow rate detected by the flow meter exceeds the set normal range (for example, the flow rate is too high or too low), it is considered abnormal flow.

[0084] Alarm signal generator: When abnormal traffic data is received, the alarm signal generator inside the alarm module will be activated immediately to generate an alarm signal to alert the operator.

[0085] Automatic control output interface: The module is connected to the control circuits of each pneumatic valve through the control output interface. Once an alarm signal is triggered, the module automatically sends a command to close the relevant pneumatic valve to prevent the danger caused by continued filling.

[0086] The system has pre-set upper and lower flow thresholds. During normal operation, the flow meter reading should be within this range. If it exceeds this range, the alarm module will identify it as an abnormality.

[0087] The alarm module can monitor the data output by the flow meter in real time to ensure that the system can quickly respond to abnormal situations at any time.

[0088] When abnormal flow is detected, the module immediately emits an audible and visual alarm signal to alert the operator. In addition, the alarm signal can be sent to the remote monitoring system for easy remote monitoring and management.

[0089] The module will automatically close the relevant pneumatic valves and stop the delivery of purified phosphoric acid or desalted water to prevent equipment damage or safety accidents caused by abnormal flow.

[0090] It should be noted that the above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A purified phosphoric acid filling system, characterized in that: include: Filling main pipe, purified phosphoric acid storage tank, desalted water storage tank, first pneumatic valve, second pneumatic valve, control device, desalted water flow meter, purified phosphoric acid flow meter and third pneumatic valve; The desalted water storage tank is connected to the filling main pipe through a first branch pipe, the first pneumatic valve and the desalted water flowmeter are arranged on the first branch pipe, the purified phosphoric acid storage tank is connected to the filling main pipe through a second branch pipe, the second pneumatic valve and the purified phosphoric acid flowmeter are arranged on the second branch pipe, and the third pneumatic valve is arranged on the filling main pipe. The filling main pipe is used to fill phosphoric acid into the tank truck.

2. The purified phosphoric acid filling system according to claim 1, characterized in that: It also includes a mixing tank, the first branch pipe and the second branch pipe are connected to the water inlet of the mixing tank, and the filling main pipe is connected to the water outlet of the mixing tank.

3. The purified phosphoric acid filling system according to claim 1, characterized in that: It also includes a filling head, which is connected to the outlet of the filling main pipe.

4. The purified phosphoric acid filling system according to claim 1, characterized in that: The control device includes a controller and a display screen. The controller is used to control the opening and closing states of the first pneumatic valve, the second pneumatic valve and the third pneumatic valve, and calculate the mixing ratio according to the real-time data of the desalted water flowmeter and the purified phosphoric acid flowmeter.

5. The purified phosphoric acid filling system according to claim 4, characterized in that: The controller is connected to a remote monitoring system.

6. The purified phosphoric acid filling system according to claim 3, characterized in that: The filling head is made of corrosion-resistant material.

7. The purified phosphoric acid filling system according to claim 2, characterized in that: The mixing tank is provided with a stirring device for uniformly mixing the purified phosphoric acid and the desalted water.

8. The purified phosphoric acid filling system according to claim 4, characterized in that: The controller is provided with an abnormal alarm module. When the flow meter detects abnormal flow, the controller automatically sends an alarm signal and closes the relevant pneumatic valve.

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