Skid-mounted automatic dosing device

Abstract

The utility model provides a skid-mounted automatic dosing device, relates to a sewage treatment technology, and particularly discloses a skid-mounted container, a PAC preparation equipment component and a PAM preparation equipment component are mounted in the skid-mounted container, a water injection pipeline is mounted on the side wall of the skid-mounted container, and a water outlet pipeline is mounted on the side wall of the skid-mounted container. Water inlets of the PAC preparation equipment assembly and the PAM preparation equipment assembly are communicated with the water injection pipeline, output ports of the PAC preparation equipment assembly and the PAM preparation equipment assembly are provided with secondary dilution modules, the secondary dilution modules are communicated with the water injection pipeline, and the PAC preparation equipment assembly, the PAM preparation equipment assembly and the secondary dilution modules are in signal connection with the electric control system structure. An operator can select equipment with different treatment capacities for pharmacy through an electric control system structure according to different water quality requirements, and quick assembly is carried out; the equipment is provided with full-automatic dosing, the labor cost during manual dosing is reduced, the equipment is applied to emergency or assembly type sewage treatment plants and other scenes, and the installation period can be greatly shortened.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically, to a skid-mounted automatic dosing device. Background Technology

[0002] Currently, wastewater treatment technology is quite mature. Existing wastewater treatment mainly includes physical-chemical treatment, chemical treatment, and biological treatment. PAC and PAM agents can be used simultaneously in all three treatment methods. They can be used for suspended solids reduction at the front end of wastewater treatment, sludge sedimentation in the secondary sedimentation tank at the back end, and total phosphorus removal in effluent. However, most PAC agents are dry powder agents, which are difficult to implement effectively due to their large dosage, hygroscopicity, and weak acidity after dissolution. Furthermore, existing agent dosing equipment and methods mostly require on-site personnel for agent dosing and equipment maintenance, resulting in high labor costs. Existing methods for regulating initial rainwater, emergency wastewater, and wastewater leaks require timely agent delivery and dosing, which conventional equipment cannot effectively meet. Conventional dosing equipment cannot automatically adjust and dilute the dosage according to wastewater quality, leading to overdosing, wasting chemical costs, and causing environmental pollution. Utility Model Content

[0003] The purpose of this invention is to provide a skid-mounted automatic dosing device that addresses the shortcomings of existing technologies and solves the problems mentioned in the background section.

[0004] The technical solution of this utility model is implemented as follows:

[0005] This utility model provides a skid-mounted automatic dosing device, including a skid-mounted container, in which PAC preparation equipment components and PAM preparation equipment components are installed. A water injection pipeline is installed on the side wall of the skid-mounted container. The water inlets of the PAC preparation equipment components and PAM preparation equipment components are connected to the water injection pipeline. A secondary dilution module is installed at the output port of the PAC preparation equipment components and PAM preparation equipment components. The secondary dilution module is connected to the water injection pipeline. The PAC preparation equipment components, PAM preparation equipment components and secondary dilution module (12) are all connected to the electrical control system structure signal.

[0006] In some technical solutions of this utility model, the PAC preparation equipment component includes two tanks arranged in pairs. Each tank is provided with a first water inlet pipe connected to a water injection pipeline. A first solenoid valve is provided between the first water inlet pipe and the water injection pipeline. A PAC level gauge is installed in each tank. A first stirring structure is installed on the top of the tank. A first drive motor for driving the first stirring structure is provided on the top of the tank. A first drug outlet pipe is provided at the bottom of the tank and connected to it. The first drug outlet pipe is connected to a matching secondary dilution module. A drug addition pipeline is provided on the top of the tank. A drug addition solenoid valve is provided on the drug addition pipeline. The output end of the drug addition solenoid valve is provided with two branch pipes, which are respectively connected to the two tanks.

[0007] In some technical solutions of this utility model, a first dosing pump structure is provided between the first drug outlet pipe and its adapted secondary dilution module, and a first drug outlet solenoid valve, a first Y-type filter and a first pressure gauge are sequentially provided between the first drug outlet pipe and the first dosing pump structure.

[0008] In some technical solutions of this utility model, the PAM preparation equipment includes a mixing tank. A second water inlet pipe connected to a water injection pipeline is provided on the side wall of the mixing tank. Two partitions are provided inside the mixing tank, dividing the mixing tank into three mixing chambers. A PAM level gauge is installed in each mixing chamber. A second stirring structure corresponding to each of the three mixing chambers is provided on the top of the mixing tank. Three second drive motors are provided on the top of the mixing tank and are respectively connected to the three second stirring structures. A second drug outlet pipe is provided at the bottom of the mixing tank and is connected to a matching secondary dilution module.

[0009] In some technical solutions of this utility model, a second dosing pump structure is provided between the second drug outlet pipe and its adapted secondary dilution module, and a second Y-type filter and a second pressure gauge are sequentially provided between the second drug outlet pipe and the second dosing pump structure.

[0010] In some technical solutions of this utility model, a second solenoid valve, a third Y-type filter, a second pressure gauge, a valve group structure, and a first flow meter are sequentially provided between the water injection pipeline and the second water inlet pipe.

[0011] In some technical solutions of this utility model, a dry powder hopper is installed on the top of the mixing tank. The dry powder hopper is connected to the feed inlet on the mixing tank. A conveying device is provided at the connection between the dry powder hopper and the mixing tank. An impregnation device is provided between the conveying device and the feed inlet. A third water inlet pipe connected to the impregnation device is provided at one of the output ports of the first flow meter. A third solenoid valve is provided at the other output port of the flow meter.

[0012] In some technical solutions of this utility model, the valve assembly structure includes a first ball valve disposed between a first flow meter and a second pressure gauge, and an auxiliary pipeline. Two second ball valves are provided on the auxiliary pipeline, and a fourth solenoid valve is installed between the two second ball valves. One end of the auxiliary pipeline is connected to the inlet of the first ball valve, and the other end of the auxiliary pipeline is connected to the outlet of the first ball valve.

[0013] In some technical solutions of this utility model, the secondary dilution module includes an output pipe, on which a fifth solenoid valve, a fourth pressure gauge, a second flow meter and a dilution drug pipe are sequentially provided. The outer wall of the dilution drug pipe is provided with a water injection pipe that is connected to the water injection pipe. A quick-release connector is installed at the end of the output pipe away from the dilution drug pipe.

[0014] In some technical solutions of this utility model, both the PAC preparation equipment component and the PAM preparation equipment component are equipped with an assembly structure that can be detachably connected to the skid-mounted container.

[0015] Compared with existing technologies, this utility model has at least the following advantages or beneficial effects: the system can adjust the concentration of the reagent in the preparation equipment according to the water volume, and can control the concentration of the reagent output during the dosing stage; through data feedback and demand, it can achieve precise dosing according to the wastewater quality, unaffected by the wastewater volume and concentration, improving the wastewater treatment effect while saving reagent dosage; the PAC and PAM equipment share a skid-mounted container, reducing the footprint through modular layout; the PAM adopts a three-stage stirring chamber to improve dissolution efficiency and avoid polymer chain breakage; the PAC dual tanks operate alternately to achieve continuous supply of reagents, so operators can select equipment with different treatment capacities according to different water quality requirements and perform rapid assembly; applicable to emergency or prefabricated wastewater treatment plants, it can greatly save the installation period; using aqueous dosing instead of dry powder dosing results in lower costs and storage fees, reducing the total project cost; the equipment is equipped with fully automatic dosing, reducing labor costs when doing manual dosing and lowering the professional knowledge requirements of maintenance personnel. Attached Figure Description

[0016] Figure 1 This is a flowchart illustrating the present invention.

[0017] Figure 2 This is a front view schematic diagram of the internal structure of the skid-mounted container in this utility model.

[0018] Figure 3 This is a top view schematic diagram of the internal structure of the skid-mounted container in this utility model.

[0019] Figure 4 This is a rear view schematic diagram of the internal structure of the skid-mounted container in this utility model.

[0020] Figure 5This is a top view of the skid-mounted container in this utility model.

[0021] Figure 6 This is a schematic diagram of the assembly structure in this utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the PAM preparation equipment components in this utility model.

[0023] Figure 8 This is a schematic diagram of the PAC preparation equipment components in this utility model.

[0024] Figure 9 This is a schematic diagram of the secondary dilution module in this utility model.

[0025] Figure label:

[0026] 1. Skid-mounted container; 2. Bolted structure; 3. Tank body; 4. First drive motor; 5. First dosing pump structure; 6. Second dosing pump structure; 7. Mixing tank; 8. Second drive motor; 9. Electrical control system structure; 10. Laboratory and office equipment; 11. Ventilation fan; 12. Secondary dilution module; 13. Dry powder hopper; 14. Conveying device; 15. Water injection pipeline; 16. Second mixing structure; 17. PAM level gauge; 18. PAC level gauge; 19. Dosing solenoid valve; 20. First mixing structure; 21. First solenoid valve; 22. First pressure gauge; 23. ... 24. First solenoid valve for dispensing medicine; 25. Second solenoid valve for dispensing medicine; 26. Third solenoid valve for dispensing medicine; 27. Third inlet pipe for dispensing medicine; 28. Fourth solenoid valve for dispensing medicine; 29. ​​First ball valve for dispensing medicine; 30. Second ball valve for dispensing medicine; 31. Third pressure gauge for dispensing medicine; 32. Third solenoid valve for dispensing medicine; 33. Second solenoid valve for dispensing medicine; 34. First flow meter for dispensing medicine; 35. Water injection pipe for dispensing medicine; 36. Second flow meter for dispensing medicine; 37. Diluent pipe for dispensing medicine; 38. Fourth pressure gauge for dispensing medicine; 39. Fifth solenoid valve for dispensing medicine; 40. Immersion device for dispensing medicine; 41. First inlet pipe for dispensing medicine; 42. Dosing pipe for dispensing medicine; 43. Second pressure gauge for dispensing medicine; 44. Output pipe for dispensing medicine. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0029] Example

[0030] This utility model provides a skid-mounted automatic dosing device, such as... Figures 1-9 As shown, the system includes a skid-mounted container 1, which houses both PAC and PAM preparation equipment components. The PAC and PAM equipment share the same skid-mounted container 1, reducing floor space and making it suitable for space-constrained environments. A water injection pipeline 15 is installed on the side wall of the skid-mounted container 1. The water inlets of both the PAC and PAM preparation equipment components are connected to the water injection pipeline 15, enabling the PAC equipment to dissolve solid pharmaceuticals through stirring to form a solvent, and the PAM equipment to dissolve polymer molecules stepwise through multiple chambers to form a solvent. A secondary dilution module 12 is installed at the output ports of both the PAC and PAM preparation equipment components. The secondary dilution module 12 is connected to the water injection pipeline 15, and the prepared solvent is transported to the secondary dilution module 12 to mix with water in the water injection pipeline 15 to adjust the concentration. The skid-mounted container integrates PAC and PAM preparation equipment. Water is supplied uniformly through the water injection pipeline 15. The concentration of the prepared reagents is adjusted by the secondary dilution module 12 before output. The water injection, dosing, and dilution processes are automatically controlled by solenoid valves and flow meters, reducing manual intervention. The secondary dilution module 12 avoids waste and pipeline blockage caused by directly adding high-concentration reagents.

[0031] In some technical solutions of this utility model, the PAC preparation equipment component includes two tanks 3 arranged in pairs. Each tank 3 is provided with a first water inlet pipe 41 connected to a water injection pipe 15. A first solenoid valve 21 is provided between the first water inlet pipe 41 and the water injection pipe 15. A PAC level gauge 18 is installed inside each tank 3. A first stirring structure 20 is installed on the top of the tank 3. A first drive motor 4 for driving the first stirring structure 20 is provided on the top of the tank 3. A first drug outlet pipe is provided at the bottom of the tank 3 and is connected to a secondary dilution module 12 adapted thereto. A drug addition pipe 42 is provided on the top of the tank 3. A drug addition solenoid valve 19 is provided on the drug addition pipe 42. Two branch pipes are provided at the output end of the drug addition solenoid valve 19, and the branch pipes are respectively connected to the two tanks 3. The two tanks operate alternately. Water injection is controlled by the first solenoid valve 21, the liquid level gauge monitors the liquid volume in the tank, and the stirring structure ensures uniform dissolution of the agent. The first solenoid valve 21 opens according to the liquid level gauge signal, and water is injected into the target tank 3. Solid PAC enters the tank 3 through the dosing pipe 42. The first drive motor 4 drives the first stirring structure 20 to accelerate dissolution and form the initial PLC solution.

[0032] In some technical solutions of this utility model, a first dosing pump structure 5 is provided between the first drug outlet pipe and its adapted secondary dilution module 12. A first drug outlet solenoid valve 24, a first Y-type filter 23, and a first pressure gauge 22 are sequentially provided between the first drug outlet pipe and the first dosing pump structure 5. The first dosing pump is started according to the requirements of the dilution module. The drug enters the pump body through the Y-type filter, which intercepts impurities. The pressure gauge monitors the pipeline pressure in real time to detect pipeline blockage or leakage in advance.

[0033] In some technical solutions of this utility model, the PAM preparation equipment includes a mixing tank 7. A second water inlet pipe, connected to a water injection pipe 15, is provided on the side wall of the mixing tank 7. Two partitions divide the mixing tank 7 into three mixing chambers. A PAM level gauge 17 is installed in each mixing chamber. A second stirring structure 16, corresponding to each of the three mixing chambers, is located on the top of the mixing tank 7. Three second drive motors 8, each connected to one of the three second stirring structures 16, are also located on the top of the mixing tank 7. A second drug outlet pipe, connected to the bottom of the mixing tank 7, is connected to a matching secondary dilution module 12. PAM dry powder is dissolved in three stages through the three chambers: pre-wetting, low-speed stirring, and high-speed maturation. The level gauges control the water volume in each chamber. The PAM level gauge 17 is located in the mixing chamber furthest from the second water inlet pipe.

[0034] In some technical solutions of this utility model, a second dosing pump structure 6 is provided between the second dosing pipe and its adapted secondary dilution module 12. A second Y-type filter 25 and a second pressure gauge 43 are sequentially provided between the second dosing pipe and the second dosing pump structure 6. The PAM solution is pressurized and delivered to the secondary dilution module 12 by the second dosing pump. The second Y-type filter 25 intercepts undissolved particles, and the second pressure gauge 43 monitors the pumping pressure in real time to ensure a stable output of PAM solution.

[0035] In some technical solutions of this utility model, a second solenoid valve 33, a third Y-type filter 32, a second pressure gauge 43, a valve assembly structure, and a first flow meter 34 are sequentially arranged between the water injection pipeline 15 and the second inlet pipe. Through the second solenoid valve 33, the third Y-type filter 32, the valve assembly structure, and the first flow meter 34, the amount of water entering the PAM mixing tank 7 is precisely controlled, ensuring accurate water-to-powder ratio during the dissolution process. The third Y-type filter 32 intercepts impurities (such as rust and silt) in the water injection pipeline 15, protecting the PAM equipment. The valve assembly structure, through a combination of a main ball valve and an auxiliary pipeline solenoid valve, enables water flow switching and fine-tuning of the flow rate.

[0036] In some technical solutions of this utility model, a dry powder hopper 13 is installed on the top of the mixing tank 7. The dry powder hopper 13 is connected to the feed inlet on the mixing tank 7. A conveying device 14 is provided at the connection between the dry powder hopper 13 and the mixing tank 7. A wetting device 40 is provided between the conveying device 14 and the feed inlet. A third water inlet pipe 27 connected to the wetting device 40 is provided at one of the output ports of the first flow meter 34, and a third solenoid valve 26 is provided at the other output port of the flow meter. PAM powder is quantitatively added to the dry powder hopper 13 through the conveying device 14. The third water inlet pipe 27 sprays water at the feed inlet to pre-wet the powder to prevent dust and agglomeration. The conveying device 14 is a screw conveyor, which pushes the powder from the hopper to the feed inlet. The third water inlet pipe 27 sprays water when the powder falls to form a wet surface. The first flow meter 34 splits one stream of water to the wetting device 40 and the other stream directly into the mixing tank 7 to fully dissolve the powder.

[0037] In some technical solutions of this utility model, the valve assembly structure includes a first ball valve 29 disposed between the first flow meter 34 and the second pressure gauge 43, and an auxiliary pipeline. Two second ball valves 30 are provided on the auxiliary pipeline, and a fourth solenoid valve 28 is installed between the two second ball valves 30. One end of the auxiliary pipeline is connected to the inlet of the first ball valve 29, and the other end is connected to the outlet of the first ball valve 29. The first ball valve 29 and the auxiliary pipeline are connected in parallel, and dual-path control is achieved through the fourth solenoid valve 28 and the second ball valves 30, switching to the backup pipeline in case of a main valve failure.

[0038] In some technical solutions of this utility model, the secondary dilution module 12 includes an output pipe 44, on which a fifth solenoid valve 39, a fourth pressure gauge 38, a second flow meter 36, and a dilution drug pipe 37 are sequentially mounted. A water injection pipe 35, communicating with a water injection pipe, is located on the outer wall of the dilution drug pipe 37. A quick-release connector is installed at the end of the output pipe 44 opposite to the dilution drug pipe 37. The dilution drug pipe 37 and the water injection pipe 35 converge, the mixing ratio is monitored by the second flow meter 36, the fifth solenoid valve 39 adjusts the final output dosage, and the quick-release connector enables rapid connection to an external system.

[0039] In some technical solutions of this utility model, both the PAC preparation equipment component and the PAM preparation equipment component are equipped with an assembly structure that can be detachably connected to the skid-mounted container 1. This structure is connected to the bottom plate of the skid-mounted container 1 via slide rails, bolt structures 2, or clips, supporting overall hoisting or separate disassembly and maintenance. Furthermore, several arrayed assembly holes are provided in the corresponding area of ​​the skid-mounted container 1, and different sized equipment can be matched using bolt structures 2 and clips, improving the integration rate of the equipment and facilitating subsequent installation.

[0040] Preferably, the skid-mounted container 1 also includes a ventilation fan 11, an electrical control system structure 9, and experimental office equipment 10. The electrical control system structure 9 is an electrical control cabinet, which integrates a PLC controller and other corresponding terminals. The electrical control system structure 9 uses conventional technology and is a common piece of equipment in the field of wastewater treatment.

[0041] The first drive motor, the first dosing pump structure, the second dosing pump structure, the second drive motor, the ventilation fan, the conveying device, the second stirring structure, the PAM level gauge, the PAC level gauge, the dosing solenoid valve, the first stirring structure, the first solenoid valve, the first dispensing solenoid valve, the third solenoid valve, the fourth solenoid valve, the second solenoid valve, the first flow meter, the second flow meter, and the fifth solenoid valve are all connected to the signal of the electronic control system structure 9.

[0042] Preferably, both sides of the skid-mounted container 1 are provided with double-opening door and window structures.

[0043] The workflow of the above structure:

[0044] After the equipment starts up normally, proceed with the preparation of PAC and PAC reagents respectively:

[0045] PAM reagent preparation: Tap water or recycled clean water enters through water injection pipe 15, passes through the second solenoid valve 33, the third Y-type filter 32, and the third pressure gauge 31. The third pressure gauge 31 is an electric contact pressure gauge. When the water pressure reaches a certain level, the valve assembly automatically opens to ensure water supply pressure. Pressurized water helps dissolve the reagent. The incoming water passes through the third Y-type filter to intercept impurities, and then passes through the valve assembly, which consists of the first ball valve 29, the second ball valve 30, and the fourth electric valve. The fourth electric valve is used to adjust the water flow during automatic system control. The first ball valve 29 and the second ball valve 30 are used for the first... Four solenoid valves 28 are inspected; then clean water enters the first flow meter 34, which is used for detecting the amount of water to be added; then the clean water is divided into two parts, one entering the immersion device 40 and the other entering the mixing tank 7; the dry powder agent is stored in the hopper at the top of the equipment, and enters the immersion device 40 through the dry powder screw conveyor. After being dissolved by the clean water entering the water, it enters the mixing tank 7. The mixing tank 7 is divided into three stages of stirring. The PAM agent is stirred and gradually moves from the water inlet side to the outlet side, mainly for agent dissolution and polymer expansion; the third stage stirring chamber, away from the water inlet side, contains a PAM level gauge 17 for level detection and automatic control. The dissolved agent enters the second dosing pump structure 6 from the outlet after passing through the second Y-type filter 25 and the second pressure gauge 43. There are two dosing pumps in the second dosing pump structure 6, one in operation and one on standby; the pump outlet is connected to the secondary dilution module 12 to dilute the concentration as needed, and then to the PAM outlet on the container wall.

[0046] PAC preparation: Clean water enters the left and right tanks 3 through the first solenoid valve 21 connected to the water injection pipe 15 and two first inlet pipes 41. According to the PAC level gauge 18, the first solenoid valve 21 automatically closes after reaching the set level. High-concentration PAC stock solution enters the left and right tanks 3 through the dosing solenoid valve 19. Similarly, the dosing solenoid valve 19 automatically closes after reaching the set level. The difference in volume between the stock solution and clean water achieves dilution. Subsequently, the solution is diluted and mixed by stirring in the tank 3. After mixing, the diluted liquid exits through the first outlet pipe, through the first outlet solenoid valve 24, through the first Y-type filter 23, and through the first pressure gauge 22 before entering the first dosing pump structure 5. There are two dosing pumps in total, one in operation and one on standby. The pump outlet is connected to the secondary dilution module 12, which further dilutes the concentration as needed before reaching the PAC outlet on the container wall.

[0047] Automatic control and reagent adjustment: The preparation and dosing are controlled relatively independently.

[0048] During PAM preparation: When the PAM level gauge 17 detects a low level, the fourth electric valve is opened, and the PAM hopper screw conveyor is simultaneously activated to add dry powder. During actual operation, the screw conveyor's rotation speed is fixed, and the amount of dry powder added per minute is measured. Based on requirements, the fourth electric valve automatically adjusts the inlet water flow rate, and the first flow meter 34 provides feedback on the water volume, ultimately obtaining the desired PAM concentration. When the level gauge shows a high level, water and chemical feeding are stopped, and stirring is delayed for 30 minutes before being shut off. When the chemical is delivered to the dosing pump until the level drops to low, the chemical preparation process restarts.

[0049] During PAC preparation: Based on water quality requirements, the system automatically opens the first solenoid valve 21 and the drug inlet solenoid valve, and adjusts the height of the clean water inlet and the liquid height of the stock solution as needed to obtain the required concentration of PAC solution.

[0050] When adding PAC and PAM: the electrical control cabinet defaults to selecting pump A in the first dosing pump structure 5 or the second dosing pump structure 6 as the main delivery pump, and pump B as the backup pump, which will automatically switch in case of failure; before the PAM agent enters the pump, the pressure reading on the pressure gauge can be used to determine whether the detection pump or Y-type filter is blocked; the secondary dilution module 12 at the agent outlet can further adjust the dosing concentration according to the water quality requirements: when no agent dilution is required, the fifth solenoid valve 39 is closed; when dilution is required, the fifth solenoid valve 39 is opened, and the dilution ratio can be obtained based on the flow meter feedback and the default flow rate of the first dosing pump structure 5 or the second dosing pump structure 6, thus obtaining the required final dosing concentration;

[0051] The electrical control cabinet system regulates the preparation and dosing of reagents based on experience and reaction mechanisms. A pre-set wastewater treatment model formula is used within the system. Feedback from the influent flow meter and pollutant concentration data at the main wastewater inlet is used to calculate and determine the required concentrations of PAC and PAM reagents. When the required concentration can be met by adjusting the preparation device, the system adjusts the configuration via the preparation equipment and directly outputs the reagents through the dosing pump, without the need for secondary dilution module 12. When the required concentration decreases, the system prepares the reagents and simultaneously activates secondary dilution module 12, diluting the reagents before delivering them to the required point.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A skid-mounted automatic dosing device, characterized in that, The system includes a skid-mounted container (1) and an electrical control system. The skid-mounted container (1) is equipped with PAC preparation equipment components and PAM preparation equipment components. A water injection pipeline (15) is installed on the side wall of the skid-mounted container (1). The water inlets of the PAC preparation equipment components and PAM preparation equipment components are connected to the water injection pipeline (15). The output ports of the PAC preparation equipment components and PAM preparation equipment components are equipped with secondary dilution modules (12). The secondary dilution modules (12) are connected to the water injection pipeline (15). The PAC preparation equipment components, PAM preparation equipment components, and secondary dilution modules (12) are all connected to the electrical control system structure via signal connections.

2. The skid-mounted automatic dosing device according to claim 1, characterized in that, The PAC preparation equipment assembly includes two tanks (3) arranged in pairs. Each tank (3) is provided with a first water inlet pipe (41) connected to the water injection pipeline (15). A first solenoid valve (21) is provided between the first water inlet pipe (41) and the water injection pipeline (15). A PAC level gauge (18) is installed inside each tank (3). A first stirring structure (20) is installed on the top of each tank (3). A first driving electric motor for driving the first stirring structure (20) is provided on the top of each tank (3). The bottom of the tank (3) is provided with a first drug outlet pipe connected to it. The first drug outlet pipe is connected to the secondary dilution module (12) adapted to it. A first dosing pump structure (5) is provided between the first drug outlet pipe and the secondary dilution module (12) adapted to it. The top of the tank (3) is provided with a dosing pipe (42). A dosing solenoid valve (19) is provided on the dosing pipe (42). The output end of the dosing solenoid valve (19) is provided with two branch pipes. The two branch pipes are respectively connected to the corresponding tank (3).

3. A skid-mounted automatic dosing device according to claim 1 or 2, characterized in that, The PAM preparation equipment includes a mixing tank (7), a second water inlet pipe connected to the water injection pipeline (15) is provided on the side wall of the mixing tank (7), two partitions are provided inside the mixing tank (7) to divide the mixing tank (7) into three mixing chambers, each of which is equipped with a PAM level gauge (17), a second stirring structure (16) corresponding to each of the three mixing chambers is provided on the top of the mixing tank (7), three second drive motors (8) are provided on the top of the mixing tank (7) and are respectively connected to the three second stirring structures (16), a second drug outlet pipe is provided at the bottom of the mixing tank (7) and is connected to the second drug outlet pipe and its matching secondary dilution module (12), and a second dosing pump structure (6) is provided between the second drug outlet pipe and its matching secondary dilution module (12).

4. The skid-mounted automatic dosing device according to claim 3, characterized in that, A dry powder hopper (13) is installed on the top of the mixing tank (7). The dry powder hopper (13) is connected to the feed inlet provided on the mixing tank (7). A conveying device (14) is provided at the connection between the dry powder hopper (13) and the mixing tank (7). A wetting device (40) is provided between the conveying device (14) and the feed inlet. A third water inlet pipe (27) connected to the wetting device (40) is provided at one of the outlets of the second water inlet pipe. A third solenoid valve (26) is provided on the second water inlet pipe.

5. A skid-mounted automatic dosing device according to claim 3, characterized in that, The water injection pipeline (15) and the second water inlet pipe are sequentially provided with a second solenoid valve (33), a third Y-type filter (32), a third pressure gauge (31), a valve group structure, and a first flow meter (34). The valve group structure includes a first ball valve (29) disposed between the first flow meter (34) and the second pressure gauge (43) and an auxiliary pipeline. The auxiliary pipeline is provided with two second ball valves (30), and a fourth solenoid valve (28) is installed between the two second ball valves (30). One end of the auxiliary pipeline is connected to the inlet of the first ball valve (29), and the other end of the auxiliary pipeline is connected to the outlet of the first ball valve (29).

6. A skid-mounted automatic dosing device according to claim 1, characterized in that, The secondary dilution module (12) includes an output pipe (44), on which a fifth solenoid valve (39), a fourth pressure gauge (38), a second flow meter (36), and a dilution drug pipe (37) are sequentially provided. A water injection pipe (35) communicating with a water injection pipe is provided on the outer wall of the dilution drug pipe (37). A quick-release connector is installed at the end of the output pipe (44) away from the dilution drug pipe (37).

7. A skid-mounted automatic dosing device according to claim 1, characterized in that, Both the PAC preparation equipment component and the PAM preparation equipment component are equipped with an assembly structure that can be detachably connected to the skid-mounted container (1).

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