Brief description:

The dust liquid mixing and dispensing system is suitable for automatic feeding control of various media, quantities, and times. Different media can be set with different measurement units, and multiple solenoid valves and pumps can be controlled simultaneously. It is equipped with flow meters, weighing sensors, or level, liquid level, pressure, temperature and other measuring instruments, with simple operation and accurate accuracy. Customization can be achieved according to specific working conditions.

1、 Introduction and explanation of dust liquid mixing/dispensing control system:

The dust liquid mixing and dispensing system is suitable for automatic feeding control of various media, quantities, and times. Different media can be set with different measurement units, and multiple solenoid valves and pumps can be controlled simultaneously. It is equipped with flow meters, weighing sensors, or measuring instruments such as level, liquid level, pressure, temperature, pH value, and acidity. The operation is simple and the accuracy is accurate. Customization can be achieved according to specific working conditions. Dust liquid mixing and dispensing system, WDK pipeline quantitative control system equipment, quantitative control adjustment device, quantitative feeding control system, quantitative batching control system device, batching adjustment quantitative control system, automatic feeding control system, automatic filling equipment, manual operation feeding control equipment, flow automatic control device, button operation feeding, quantitative canning equipment, replacing manual weighing and dispensing and packaging, etc. all refer to the process of automatically cutting off or controlling the pipeline when an accumulated amount reaches a certain value on the basis of accurate measurement of pipeline flow.

2、 Application scenarios of dust liquid mixing/dispensing control system:

As workers' wages continue to rise, automatic control has become a trend. One of the projects that many enterprises currently use or need to improve is the dust liquid mixing and dispensing control system, which is easy to operate and learn, directly replacing manual feeding and batching. At the same time, this system displays intuitively and combines manual or automatic control. Specially suitable for workshop batching, filling, water mixing, drug mixing, feeding, packaging, quantitative feeding and liquid injection, as well as quantitative and timed control of various liquids or gases. At present, small-scale chemical and daily chemical factories, toothpaste factories, cosmetics factories, paper mills, food factories, beer and beverage factories, etc. still use manual operation for canning/dispensing, and do not want to invest too much cost. For enterprises that want to improve work efficiency, it is recommended to use the powder and liquid mixing/dispensing control system recently launched by Shanghai Longkui. There are intelligent instrument based centralized control systems, PLC touch screen programmable control systems, PLC touch screen programmable control systems, programmable encoders, multiple instruments and other central control integrated dust and liquid mixing/dispensing control systems. Shanghai Longkui can customize them for you according to your actual application requirements

3、 Detailed introduction of the dust liquid mixing/dispensing control system launched by Longkui:

System composition:

1. WDK type control box: It contains PLC touch screen or quantitative control instrument, frequency converter, internal control circuit and other components (such as air switch, relay, contactor, etc.), external control buttons and indicator lights, etc. The standard size of single channel box is 400 * 300 * 200mm, and the standard size of multi channel box is 800 * 600 * 200mm. The input power (AV220V) is uniformly supplied to the control box, and other equipment such as flow meters and solenoid valves are directly powered by the control box; And printing function can be added.

2. Flow meter: This is the foundation of control and directly affects the effectiveness of control. Therefore, the basic requirement is that the higher the measurement accuracy, the better, and it has signal output function. At the same time, there are many types of flow meters, and it is necessary to select the appropriate flow meter based on parameters and requirements such as measuring medium, pipeline diameter, flow range, explosion-proof, anti-corrosion, and protection level.

3. Flow interruption equipment: can be existing power equipment in the pipeline, such as pumps; It can also be a solenoid valve, electric valve, etc. installed later.

4. The power part of the control pump, solid or gas, rarely prevents the medium from flowing in the pipeline. The working power supply can be DC12V, DC24V, 20AC, 380V.

5. We can customize functions such as air washing and blowing after the residual medium in the pipeline is sent out, mixing while sending out materials, and stirring after sending out materials (customized according to customer requirements)

Process control:

PLC、 After receiving the flow signal from the flowmeter, the touch screen or quantitative controller accumulates the flow internally and sets the required quantitative control value. When the cumulative value displayed by the quantitative controller reaches the set quantitative control value, the PLC touch screen or quantitative controller outputs a switch signal. At this point, the switch signal is used to control the flow interruption equipment installed on the pipeline by connecting a relay or contactor, thereby achieving quantitative control.

Product features:

1. It only requires a flow meter, control box, and cutoff equipment, with a simple structure and low cost;

2. The PLC, touch screen or quantitative control instrument, frequency converter, control circuit and other components such as relays, air switches, contactors, etc. inside the control box are customized according to the flow meters and equipment required by the customer. The signal line connection is simple, and the flow meter and cut-off equipment are directly powered by the control box, so there is generally no need to adjust them after arriving at the site;

3. The touch screen and controller are fully displayed in Chinese, making operation convenient and the display intuitive; The control box panel is equipped with "start", "stop", and "reset" buttons, which can also be external buttons, and has a "status indicator light" display, so the display is intuitive, the operation is simple, convenient, and easy to learn;

4. The quantitative control value can be changed as needed each time, simply by operating in the PLC programming software or quantitative control instrument. Several sets of commonly used quantities can also be set according to requirements, and can be directly selected during material feeding without the need for re setting;

Main functions:

1. When controlling both the pump and the valve simultaneously, there are functions for delaying the start of the pump and closing the valve in advance;

2. Equipped with overflow and pump holding interfaces, it provides immediate protection by shutting down the feeding process in case of overflow or pump holding;

3. The total accumulation, instantaneous flow rate, time, and input signal values of the flow meter can be viewed on the touch screen or quantitative controller display screen, and there are query functions such as feeding frequency, feeding time, feeding quantity, and daily or monthly accumulation;

4. Can be equipped with a printer for real-time printing function, including the start and end time of material printing, material quantity, actual material quantity, and material name (freely set according to customer requirements); Power off and maintain the working state before feeding.

5. PLC programming software, control instruments, controllers, and control boxes are completely independently developed. Therefore, if you need other functions, we at Shanghai Longkui can customize them for you;

Display section:

PLC touch screen or instrument display or external computer, mobile phone display screen, etc. are shown in the following figure:

Function Introduction:

1. Query of material issuance records: including the number of times materials were issued, the start and end time of each issuance, and the actual quantity of each issuance;

2. The unit and value of material issuance can be set arbitrarily, and all operations and instructions are in Chinese (depending on the nature of the customer, such as for foreign enterprises or exporting abroad, they are mostly in both Chinese and English);

3. At the same time, after inputting the density of the fluid, the feeding amount is automatically converted into volume and mass units;

4. Equipped with a status light indicator, "start", "stop", and "reset" buttons for operation, the display is intuitive and the operation is convenient. In the event of an emergency, material distribution can be paused or stopped at any time;

5. Display the total cumulative amount, number of times, time of material feeding, and the status of the control valve;

6. Material loading display interface: real-time cumulative material loading, percentage of total material loading, advance quantity (set quantity), real-time instantaneous flow rate, status indicator light, and valve status display;

7. Built in password protection function can effectively prevent unauthorized settings by other personnel;

8. Can be matched with printer function: automatically print after each feeding is completed (printing content includes: tag number can be set, feeding amount can be set, actual feeding amount, feeding time, stop time);

9. Equipped with USB interface for downloading material issuance records, with RS485, etc

4、 Notice on the Control System for Mixing and Distributing Dust Liquid:

1. Choose the appropriate flowmeter: inform us of the name of the measuring medium, the diameter of the measuring tube, the working pressure and temperature, the flow range, or other requirements. We, Shanghai Longkui, will professionally design and select the appropriate flowmeter for you;

2. Explain the requirements for control, such as the size of each quantitative value, the number of times to control each day, whether the value controlled each time is the same, and other requirements;

3. Choose a cut-off device: If there is already a cut-off device, please inform us of its working power supply and power, and we will customize it accordingly; If needed, we can also provide a cut-off device. We suggest choosing solenoid valves or electric valves (when delayed start or stop is required) for the cut-off equipment. Do not control the pump. At the same time, when arranging the pipeline, use the stagnant flow generated by the liquid level difference as the power source. This is safer for control and has stable and accurate measurement accuracy, which can reach 0.2%

5、 Precautions for on-site installation of dust liquid mixing/dispensing control system:

1. Flow meter installation (see instructions for details): At least ensure that the front and rear straight pipes of the flow meter are 10D and 5D (D is the pipe diameter), and the longer the better. If there are pumps and regulating valves in front, try to increase the length of the front straight pipe as much as possible, stay away from them, and there should be no strong electric, strong magnetic, or variable frequency interference near the installation point. The installation point pipeline must be full pipe flow, and when the installation pipeline is vertically oriented, the fluid flow direction must be from bottom to top.

2. Electromagnetic valve: It should be installed behind the flow meter and at a distance of at least 40D (D is the diameter of the pipeline) from the flow meter to avoid vibration and electromagnetic field caused by the electromagnetic valve before and after operation, which may affect the measurement accuracy of the flow meter. In addition, the installation point of the electromagnetic valve should be as close as possible to the flow outlet.

3. When controlling a pump, attention should be paid to the working power supply. High power pumps need to be equipped with a frequency converter to reduce voltage and start

4. Control box: Non waterproof type, it is recommended to install indoors. If installed outdoors, waterproof measures should be taken. 【 Customization of explosion-proof type (with explosion-proof certificate), anti-corrosion type, high IP level, material and material configuration can be specified or recommended for customization 】

6、 The customer's on-site use case photos are as follows:

7、 Service commitment provided by Shanghai Longkui Industrial Technology Co., Ltd. to customers:

1: The design scheme of the entire control system provided;

2: The control system equipment and other supporting product equipment provided are all guaranteed for 2 years, with high cost-effectiveness and lifetime service;

3: Within 24 hours a day, 139-1855-8055 provides free telephone consultation, guidance on installation and debugging, and other services;

4: For any matters that require on-site guidance for installation, debugging, etc., only reasonable travel expenses will be charged. For large quantities, free on-site guidance for installation and debugging can be provided;

The service tenet of Shanghai Longkui Industrial Technology Co., Ltd.: No matter how long the product is used, as long as you find us, we will solve all problems for you until you are satisfied. We believe that Shanghai Longkui Industrial Technology Company, with more than 10 years of professional technology and industry experience in industrial automation and process automation, will be able to provide you with satisfactory automation control design solutions and control system equipment and supporting products with stable quality and beautiful prices. At the same time, we will provide comprehensive, professional, and scientific one-stop services!

Shanghai Longkui Industrial Technology Co., Ltd. welcomes and looks forward to your arrival. Win win cooperation and create brilliance together!!!