Digital multi-parameter accurate dosing device and use method

Abstract

The invention relates to the technical field of sewage treatment, in particular to a digital multi-parameter precise dosing device and a using method.The digital multi-parameter precise dosing device comprises a supporting assembly, a dosing assembly, a mixing assembly and a control assembly.The supporting assembly comprises a base, a supporting frame, a mixing shell, a water inlet pipe and a water outlet pipe, the supporting frame is fixedly connected with the base, and the mixing shell is fixed to the supporting frame; the water inlet pipe and the water outlet pipe are arranged on the mixing shell, the medicine adding assembly comprises a plurality of medicine adding devices, a plurality of feeding valves, a metering panel, a pressure sensor, a rotating device and a discharging channel, the rotating device is arranged at the top of the mixing shell, the pressure sensor is arranged on the rotating device, the metering panel is arranged on the pressure sensor, the feeding valves are arranged above the metering panel, and the discharging channel is arranged below the feeding valves. The multiple dosers are connected with the multiple feeding valves correspondingly, the discharging channel is arranged below the metering panel, and the mixing assembly is rotationally arranged in the mixing shell, so that dosing of sewage feeding drugs can be more accurately carried out, and the utilization rate of raw materials is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a digital multi-parameter precise dosing device and a use method thereof. Background Art

[0002] The sewage precision dosing device is a device used to accurately control the amount of chemical agents added during sewage treatment. This device is very important in sewage treatment because it can ensure that the water quality treatment reaches the required purification standards and can effectively reduce the waste of chemicals and reduce operating costs. The main components include metering pumps, agitators, controllers, sensors, storage containers and piping systems.

[0003] The existing sewage precision dosing device mainly detects the amount of dosing by counting the flow rate through a metering pump, which is easily affected by the failure of the instrument itself and affects the accuracy of dosing. Summary of the invention

[0004] The purpose of the present invention is to provide a digital multi-parameter precise dosing device and a method of use, so as to more accurately dose the medicines in sewage to improve the utilization rate of raw materials.

[0005] To achieve the above-mentioned objectives, in a first aspect, the present invention provides a digital multi-parameter precision dosing device, comprising a supporting component, a dosing component, a mixing component and a control component, wherein the supporting component comprises a base, a supporting frame, a mixing shell, a water inlet pipe and a water outlet pipe, the supporting frame is fixedly connected to the base and is located at the top of the base, the mixing shell is fixed on the supporting frame, the water inlet pipe and the water outlet pipe are arranged on the mixing shell, the dosing component comprises a plurality of dosing devices, a plurality of loading valves, a metering disk, a pressure sensor, a rotator and a discharge channel, the rotator is arranged at the top of the mixing shell, the pressure sensor is arranged on the rotator, the metering disk is arranged on the pressure sensor, the plurality of loading valves are arranged above the metering disk, the plurality of dosing devices are respectively connected to the plurality of loading valves, the discharge channel is arranged below the metering disk and is connected to the mixing shell, the mixing component is rotatably arranged in the mixing shell, and the control component is used to control the opening parameters of the plurality of loading valves and the rotation parameters of the rotator.

[0006] Wherein, the mixing shell includes a shell and a liquid level sensor, and the liquid level sensor is arranged in the shell.

[0007] Wherein, the support assembly further includes a stabilizing pad, which is fixedly connected to the base and located at the bottom of the base.

[0008] Wherein, the rotator includes a rotating plate, a push block, a pushing cylinder, a sealing gasket and a surrounding plate, the rotating plate is rotatably arranged on one side of the mixing shell, the pushing block is slidably arranged on one side of the rotating plate, the output end of the pushing cylinder is fixedly connected to the pushing block, the surrounding plate is fixed above the rotating plate, and the sealing gasket is fixedly connected to the surrounding plate and is located between the surrounding plate and the rotating plate.

[0009] Wherein, the rotator further comprises a return spring, and the return spring is arranged between the pushing cylinder and the pushing block.

[0010] Wherein, the dosing component also includes a plurality of flushing pipes, and the plurality of flushing pipes are arranged on both sides of the feed channel.

[0011] Wherein, the dosing component also includes a pull rod, a block and a second spring, the block is slidably connected to the feed port of the mixing shell, one end of the pull rod is rotatably connected to the block, and the other end of the pull rod is rotatably connected to the push block, and the second spring is used to support the block.

[0012] Wherein, the mixing assembly includes a stirring rod, a stirring blade and a stirring motor, the stirring rod is rotatably arranged in the mixing shell, the stirring blade is fixedly connected to the stirring rod and is located in the stirring shell, and the output end of the stirring motor is fixedly connected to the stirring rod.

[0013] In a second aspect, the present invention further provides a method for using a digital multi-parameter precision dosing device, comprising:

[0014] Add the required reactants to the multiple dosing devices respectively;

[0015] Calculate the amount of reactant required based on the volume of wastewater entering the mixing shell;

[0016] Based on the amount of reactants, different feeding valves are controlled to input raw materials into the metering plate in sequence. The pressure sensor at the bottom of the metering plate is used to detect the weight of the incoming raw materials and provide feedback parameters to the control component;

[0017] The control component controls the opening of the feeding valve based on the feedback parameter;

[0018] After the addition is completed, the reactants are fed into the mixing shell through the feed channel for mixing reaction;

[0019] The wastewater after the reaction is completed is discharged through the outlet pipe.

[0020] The present invention discloses a digital multi-parameter precision dosing device and a method for using the same, wherein the base of the support assembly provides a stable support for other components. The support frame is fixedly connected to the base, located at the top of the base, and is used to support key components such as a mixing shell. The mixing shell is a container fixed to the support frame, and a mixing operation of the agent and water is performed inside the mixing shell. The water inlet pipe is connected to the water source to supply clean water or pretreated liquid to the mixing shell. The water outlet pipe discharges the mixed solution from the mixing shell and transports it to a place where it needs to be treated. Each doser is responsible for adding a drug to ensure that each drug is added according to a set ratio. The feeding valve controls the process of the drug entering the metering disk from the doser, and the amount of the drug can be controlled by adjusting the valve opening. The metering disk is located above the pressure sensor and is used to load and measure the weight of the drug, so that feedback can be provided to ensure the accuracy of the dosing, so that the amount of the drug can be verified and controlled by comparing the flow data on the feeding valve with the weight data on the metering disk. The rotator is installed on the top of the mixing shell, and the metered drug is fed into the mixing shell by rotation. The feed channel connects the metering disk and the mixing shell, so that the reagent can fall smoothly into the mixing shell. The mixing component is rotatably arranged in the mixing shell, and can be driven by a motor to rotate inside the mixing shell, thereby promoting the full mixing of the reagent and water. The control component is used to control the opening parameters of multiple feeding valves: the opening degree of the feeding valve is adjusted by the electronic control system to accurately control the addition amount of each reagent. The entire device realizes automation and precision operation through digital means, which greatly improves work efficiency and treatment effect. For example, in the field of water treatment, such a system can be used to accurately control the addition of chemical reagents to achieve the best water purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural diagram of a digital multi-parameter precise dosing device according to the first embodiment of the present invention.

[0023] Figure 2 It is a right side structural diagram of a digital multi-parameter precise dosing device according to the first embodiment of the present invention.

[0024] Figure 3 It is a left structural diagram of a digital multi-parameter precise dosing device according to the first embodiment of the present invention.

[0025] Figure 4 It is a cross-sectional structural diagram of a digital multi-parameter precise dosing device according to the first embodiment of the present invention.

[0026] Figure 5 yes Figure 4 A partial enlargement of detail A.

[0027] Figure 6 is a structural diagram of a control component of the first embodiment of the present invention.

[0028] Figure 7 It is a flow chart of a method for using a digital multi-parameter precision dosing device according to the second embodiment of the present invention.

[0029] Support assembly 101, dosing assembly 102, mixing assembly 103, control assembly 104, base 105, support frame 106, mixing shell 107, water inlet pipe 108, water outlet pipe 109, doser 110, loading valve 111, metering disk 112, pressure sensor 113, rotator 114, discharge channel 115, shell 116, liquid level sensor 117, stabilizing pad 118, rotating plate 119, push block 120, push cylinder 121, sealing pad 122, enclosure 123, reset spring 124, flushing pipe 125, pull rod 126, stopper 127, second spring 128, stirring rod 129, stirring blade 130, stirring motor 131, liquid level acquisition unit 132, ratio calculation unit 133, dosing control unit 134. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] First embodiment

[0033] See also Figure 1 to Figure 6The present invention provides a digital multi-parameter precise dosing device, including a support component 101, a dosing component 102, a mixing component 103 and a control component 104, wherein the support component 101 includes a base 105, a support frame 106, a mixing shell 107, an inlet pipe 108 and an outlet pipe 109, wherein the support frame 106 is fixedly connected to the base 105 and is located on the top of the base 105, the mixing shell 107 is fixed on the support frame 106, the inlet pipe 108 and the outlet pipe 109 are arranged on the mixing shell 107, the dosing component 102 includes a plurality of dosing devices 110, a plurality of feeding valves 111, a metering disk 112, a pressure sensor 113, a rotary The rotor 114 and the discharge channel 115 are provided, the rotor 114 is provided at the top of the mixing shell 107, the pressure sensor 113 is provided on the rotor 114, the metering disk 112 is provided on the pressure sensor 113, a plurality of the feeding valves 111 are provided above the metering disk 112, a plurality of the dosing devices 110 are respectively connected with the plurality of the feeding valves 111, the discharge channel 115 is provided below the metering disk 112 and is communicated with the mixing shell 107, the mixing assembly 103 is rotatably provided in the mixing shell 107, and the control assembly 104 is used to control the opening parameters of the plurality of feeding valves 111 and the rotation parameters of the rotor 114.

[0034] In this embodiment, the base 105 of the support assembly 101 provides stable support for other components. The support frame 106 is fixedly connected to the base 105, located on the top of the base 105, and is used to support key components such as the mixing shell 107. The mixing shell 107 is a container fixed to the support frame 106, and a mixing operation of the agent and water is performed inside. The water inlet pipe 108 is connected to the water source to supply clean water or pretreated liquid to the mixing shell 107. The water outlet pipe 109 discharges the mixed solution from the mixing shell 107 and transports it to a place where it needs to be treated. Each doser 110 is responsible for adding a drug to ensure that each drug is added according to the set ratio. The loading valve 111 controls the process of the drug entering the metering disk 112 from the doser 110, and the amount of the drug can be controlled by adjusting the valve opening. The metering disk 112 is located above the pressure sensor 113 and is used to load and measure the weight of the medicine, so that feedback can be provided to ensure the accuracy of the medicine addition, so that the amount of medicine added can be verified and controlled by comparing the flow data on the feeding valve 111 with the weight data on the metering disk 112. The rotator 114 is installed on the top of the mixing shell 107, and the measured medicine is sent into the mixing shell 107 by rotation. The feed channel 115 connects the metering disk 112 and the mixing shell 107, so that the medicine can fall smoothly into the mixing shell 107. The mixing component 103 is rotatably arranged in the mixing shell 107, and can be driven by a motor to rotate inside the mixing shell 107, thereby promoting the full mixing of the medicine and water. The control component 104 is used to control the opening parameters of multiple feeding valves 111: the opening degree of the feeding valve 111 is adjusted by the electronic control system to accurately control the addition amount of each medicine. The entire device realizes automated and precise operation through digital means, which greatly improves work efficiency and processing effect. For example, in the field of water treatment, such a system can be used to precisely control the addition of chemicals to achieve optimal water purification effects.

[0035] The mixing housing 107 includes a housing 116 and a liquid level sensor 117 . The liquid level sensor 117 is disposed in the housing 116 .

[0036] The housing 116 is used as the main container part to contain the liquid and the medicine to be mixed. The liquid level sensor 117 is arranged in the housing 116 to monitor the liquid level in the mixing shell 107 to ensure that the liquid level is within a safe range.

[0037] The support assembly 101 further includes a stabilizing pad 118 , which is fixedly connected to the base 105 and located at the bottom of the base 105 .

[0038] The stabilizing pad 118 serves to increase stability and prevent the device from shaking or moving during operation.

[0039] The rotator 114 includes a rotating plate 119, a pushing block 120, a pushing cylinder 121, a sealing gasket 122 and a surrounding plate 123. The rotating plate 119 is rotatably arranged on one side of the mixing shell 107, and the pushing block 120 is slidably arranged on one side of the rotating plate 119. The output end of the pushing cylinder 121 is fixedly connected to the pushing block 120, and the surrounding plate 123 is fixed above the rotating plate 119. The sealing gasket 122 is fixedly connected to the surrounding plate 123 and is located between the surrounding plate 123 and the rotating plate 119.

[0040] The rotating plate 119 is rotatably arranged on one side of the mixing shell 107, and is used to deliver the measured medicine into the mixing shell 107. Specifically, when adding medicine, the rotating plate 119 is supported by the push block 120, so that the rotating plate 119 can fit the enclosure 123, and then the medicine is added. After the medicine is added, the push block 120 is driven to move backward by the push cylinder 121, so that the rotating plate 119 can rotate downward under the action of gravity, so that the reactant can flow out along the discharge channel 115. After the reactant flows out, the push cylinder 121 pushes the push block 120 to move again, so that the push block 120 can push the rotating plate 119 to contact the enclosure 123 for sealing, and the sealing gasket 122 is used to enhance the sealing between the rotating plate 119 and the enclosure 123.

[0041] The rotator 114 further includes a return spring 124 , and the return spring 124 is disposed between the push cylinder 121 and the push block 120 .

[0042] The return spring 124 is disposed between the pushing cylinder 121 and the pushing block 120 . When the pushing cylinder 121 retracts, the return spring 124 helps the pushing block 120 return to an initial position.

[0043] The dosing assembly 102 further includes a plurality of flushing pipes 125 , which are disposed on both sides of the downhole channel 115 .

[0044] A plurality of flushing pipes 125 are arranged on both sides of the material discharge channel 115 to clean the material discharge channel 115 and prevent residual medicine from clogging the pipe, making the use more convenient.

[0045] The dosing component 102 also includes a pull rod 126, a block 127 and a second spring 128. The block 127 is slidably connected to the feed port of the mixing shell 107, one end of the pull rod 126 is rotatably connected to the block 127, and the other end of the pull rod 126 is rotatably connected to the push block 120. The second spring 128 is used to support the block 127.

[0046] The stopper 127 is provided on one side of the mixing shell 107 to prevent the liquid from flying out during stirring. Specifically, in the working room, when the reactant is put in, the push block 120 moves backward, thereby driving the stopper 127 to move upward through the pull rod 126, thereby applying pressure to the second spring 128 to open the feed port on the mixing shell 107. After the addition of the reagent is completed, the push block 120 is reset, thereby enabling the stopper 127 to be reset under the support of the second spring 128.

[0047] The mixing assembly 103 includes a stirring rod 129, a stirring blade 130 and a stirring motor 131. The stirring rod 129 is rotatably arranged in the mixing shell 107. The stirring blade 130 is fixedly connected to the stirring rod 129 and is located in the stirring shell. The output end of the stirring motor 131 is fixedly connected to the stirring rod 129.

[0048] The stirring rod 129 is rotatably disposed in the mixing shell 107, and is used to stir the liquid in the mixing shell 107. The stirring blade 130 is fixedly connected to the stirring rod 129 and is located in the mixing shell. The shape and number of the stirring blade 130 can be designed according to the mixing requirements. The output end of the stirring motor 131 is fixedly connected to the stirring rod 129, and provides rotational power for the stirring rod 129 to ensure that the liquid in the mixing shell 107 is fully mixed.

[0049] The control component 104 includes a liquid level acquisition unit 132, a ratio calculation unit 133 and a dosing control unit 134. The liquid level acquisition unit 132 is used to obtain the sewage level data in the mixing shell 107 and calculate the sewage volume. The ratio calculation unit 133 is used to calculate the reactant dosage based on the sewage volume. The dosing control unit 134 is used to control the opening of the loading valve 111 based on the reactant dosage, and is also used to correct the opening of the loading valve 111 based on the feedback parameters obtained by the pressure sensor 113.

[0050] The liquid level acquisition unit 132 is composed of a liquid level sensor 117, which is used to monitor the sewage level in the mixing shell 107 in real time. The liquid level sensor 117 can be an ultrasonic level meter, a radar level meter, or a float level meter, etc., which can accurately measure the liquid level height and convert it into an electrical signal to send to the control unit. In addition, the unit can also combine the size information of the mixing shell 107 and use the liquid level height to calculate the actual volume of the current sewage.

[0051] The ratio calculation unit 133 calculates the required amount of reactants based on the sewage volume data provided by the liquid level acquisition unit 132 using a preset chemical reaction equation or empirical formula. These equations or formulas usually take into account factors such as the type and concentration of pollutants in the sewage and the desired treatment effect. The calculation result will serve as an input signal of the dosing control unit 134 to guide subsequent dosing operations.

[0052] The dosing control unit 134 receives the reagent dosage information from the ratio calculation unit 133, and adjusts the opening of the loading valve 111 accordingly to control the amount of each reagent added. This process may involve a PID (proportional integral differential) control algorithm or other closed-loop control strategy to ensure the accuracy of the dosing process. The dosing control unit 134 also receives feedback signals from the pressure sensor 113, which reflect the pressure changes of the dosing device 110 during the actual dosing process. By analyzing these data, the dosing control unit 134 can adjust the opening of the loading valve 111 in real time to compensate for the deviation of the dosage caused by factors such as changes in the density of the reagent and temperature fluctuations, thereby ensuring the accuracy of the dosing.

[0053] In summary, the control component 104 monitors the liquid level in the mixing shell 107 in real time and calculates the volume of sewage through the liquid level acquisition unit 132; the ratio calculation unit 133 calculates the required amount of reactants according to the volume of sewage; and the dosing control unit 134 accurately controls the dosing process based on this information, and can also dynamically adjust the dosing amount according to the feedback signal of the pressure sensor 113, ensuring that the entire dosing process is both accurate and efficient. This highly automated control method greatly improves the accuracy and stability of the dosing of the reagents, which is crucial to improving the treatment efficiency and quality.

[0054] Second embodiment

[0055] See also Figure 7 The present invention also provides a method for using a digital multi-parameter precise dosing device, comprising:

[0056] S201: adding the required reactants to the multiple dosing devices 110 respectively;

[0057] First, according to the specific requirements of sewage treatment, appropriate reactants (such as coagulants, flocculants, etc.) are selected and added to the corresponding dosing devices 110. Each dosing device 110 is usually designed as an independent unit to ensure the purity and activity of each reactant.

[0058] S202 calculates the required amount of reactants based on the volume of sewage entering the mixing shell 107;

[0059] When sewage enters the mixing shell 107, the device automatically or manually measures the volume of sewage. According to the preset treatment standard and empirical formula, the system calculates the optimal amount of each reactant required to achieve the ideal treatment effect. This step is the key to achieving accurate dosing.

[0060] S203 controls different feeding valves 111 to input raw materials into the metering plate 112 in sequence based on the amount of reactants. The pressure sensor 113 at the bottom of the metering plate 112 is used to detect the weight of the input raw materials and provide feedback parameters to the control component 104;

[0061] According to the amount of reactants calculated in step S202, the control system will open the corresponding loading valves 111 in sequence, so that the reactants are fed into the metering disk 112. A pressure sensor 113 is installed at the bottom of the metering disk 112, which can monitor the weight of the reactants in real time and transmit this data to the control component 104 as a feedback parameter.

[0062] S204: the control component 104 controls the opening of the loading valve 111 based on the feedback parameter;

[0063] After receiving feedback from the pressure sensor 113, the control component 104 adjusts the opening of the loading valve 111 according to the difference between the actual input reactant weight and the target weight to ensure accurate dosage. When the reactant weight in the metering disk 112 reaches a predetermined value, the loading valve 111 will automatically close.

[0064] After the addition is completed in step S205, the reactants are fed into the mixing shell 107 through the feed channel 115 for mixing reaction;

[0065] When all the required reactants are accurately added to the metering pan 112 and reach a predetermined weight, they are sent to the mixing shell 107. Here, the reactants are fully mixed with the sewage, and a chemical reaction occurs, thereby removing impurities in the sewage.

[0066] S206 The wastewater after the reaction is completed is discharged through the outlet pipe 109.

[0067] After the mixed reaction, the sewage has suspended solids and harmful substances effectively removed. Finally, the treated water is discharged from the mixing shell 107 through the outlet pipe 109 and can be further processed or directly discharged into the environment.

[0068] Such an automated dosing device not only improves the efficiency of sewage treatment, but also reduces the errors that may be caused by manual operation, ensuring the consistency and reliability of the sewage treatment process.

[0069] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A digital multi-parameter precise dosing device, characterized in that: It includes a supporting component, a dosing component, a mixing component and a control component, wherein the supporting component includes a base, a supporting frame, a mixing shell, a water inlet pipe and a water outlet pipe, the supporting frame is fixedly connected to the base and is located at the top of the base, the mixing shell is fixed on the supporting frame, the water inlet pipe and the water outlet pipe are arranged on the mixing shell, the dosing component includes a plurality of dosing devices, a plurality of loading valves, a metering disk, a pressure sensor, a rotator and a discharge channel, the rotator is arranged on the top of the mixing shell, the pressure sensor is arranged on the rotator, the metering disk is arranged on the pressure sensor, the plurality of loading valves are arranged above the metering disk, the plurality of dosing devices are respectively connected to the plurality of loading valves, the discharge channel is arranged below the metering disk and communicated with the mixing shell, the mixing component is rotatably arranged in the mixing shell, and the control component is used to control the opening parameters of the plurality of loading valves and the rotation parameters of the rotator.

2. A digital multi-parameter precision dosing device as claimed in claim 1, characterized in that: The mixing shell includes a shell and a liquid level sensor, and the liquid level sensor is arranged in the shell.

3. A digital multi-parameter precise dosing device as claimed in claim 2, characterized in that: The support assembly also includes a stabilizing pad, which is fixedly connected to the base and located at the bottom of the base.

4. A digital multi-parameter precise dosing device as claimed in claim 3, characterized in that: The rotator includes a rotating plate, a push block, a pushing cylinder, a sealing gasket and a surrounding plate. The rotating plate is rotatably arranged on one side of the mixing shell, the pushing block is slidably arranged on one side of the rotating plate, the output end of the pushing cylinder is fixedly connected to the pushing block, the surrounding plate is fixed above the rotating plate, and the sealing gasket is fixedly connected to the surrounding plate and is located between the surrounding plate and the rotating plate.

5. A digital multi-parameter precise dosing device as claimed in claim 4, characterized in that: The rotator further comprises a return spring, and the return spring is arranged between the pushing cylinder and the pushing block.

6. A digital multi-parameter precise dosing device as claimed in claim 5, characterized in that: The dosing assembly further comprises a plurality of flushing pipes, and the plurality of flushing pipes are arranged on both sides of the downfeed channel.

7. A digital multi-parameter precise dosing device as claimed in claim 6, characterized in that: The dosing assembly also includes a pull rod, a block and a second spring. The block is slidably connected to the feed port of the mixing shell, one end of the pull rod is rotatably connected to the block, and the other end of the pull rod is rotatably connected to the push block. The second spring is used to support the block.

8. A digital multi-parameter precise dosing device as claimed in claim 7, characterized in that: The mixing assembly includes a stirring rod, a stirring blade and a stirring motor. The stirring rod is rotatably arranged in the mixing shell. The stirring blade is fixedly connected to the stirring rod and is located in the mixing shell. The output end of the stirring motor is fixedly connected to the stirring rod.

9. A method for using a digital multi-parameter precision dosing device, using the digital multi-parameter precision dosing device according to any one of claims 1 to 8, characterized in that: include: Add the required reactants to the multiple dosing devices respectively; Calculate the amount of reactant required based on the volume of wastewater entering the mixing shell; Based on the amount of reactants, different feeding valves are controlled to input raw materials into the metering plate in sequence. The pressure sensor at the bottom of the metering plate is used to detect the weight of the incoming raw materials and provide feedback parameters to the control component; The control component controls the opening of the feeding valve based on the feedback parameter; After the addition is completed, the reactants are fed into the mixing shell through the feed channel for mixing reaction; The wastewater after the reaction is completed is discharged through the outlet pipe.

Images