Automatic PAM medicament dilution device

Abstract

According to the automatic PAM agent dilution device, through the transformation design of equipment, the situation that PAM powder is directly put into an agent storage box to generate agglomerates is avoided, premixing is conducted in a mixing hopper, the kinematic viscosity of a premixed fluid agent is obtained under the cooperation of equipment such as a hopper, a charging barrel and an intelligent electronic scale, water is supplemented, the fluid agent is prevented from being stuck and left, and the purpose of automatic dilution of the PAM agent is achieved. In addition, the mixing hopper and the charging barrel can be flushed and residues are removed when medicament feeding is about to be finished, so that the medicament is fully facilitated, the equipment is kept clean, and interference of medicaments with different components is avoided. The PLC and the variable-frequency controller are matched to accurately control the PAM agent to enter the agent storage box, so that automatic adding is realized, and the adding amount and the water inlet amount are automatically controlled.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, and in particular to an automatic door closing hinge with a cam structure. Background Art

[0002] PAM dosing device is a complete set of equipment that mixes, dissolves and matures polyacrylamide particles with water in a certain proportion and then adds them to water, injecting chemical liquid into various systems according to the process flow. In water treatment systems, dosing devices are mainly used in drainage treatment, environmental protection and other process flows to add drugs to tap water, wastewater and sewage.

[0003] The problem with the prior art is that the water inlet pressure changes in real time, resulting in a real-time change in the water inlet volume, while the conventional PAM solution preparation and dosing device only has a float flowmeter on the water inlet pipeline. Although the change in the water inlet flow rate can be observed, the dosage of the agent is constant, so the configured agent concentration is unstable. Sometimes the agent concentration is high, and even PAM agglomerates or lumps, which easily clogs the pipeline. Sometimes the agent concentration is low, and insufficient dosage results in poor subsequent reaction effects.

[0004] Moreover, since the composition of the dosing agent needs to be specifically configured according to the sewage conditions in the factory area, the viscosity of the agent is different, and it is easy for the dosing pipeline to stick and remain, resulting in errors in the actual proportion of the agent entering the storage box.

[0005] Therefore, it is necessary to improve the design of the PAM dosing device. Utility Model Content

[0006] In order to solve the deficiencies of the above-mentioned technology, the present invention provides a PAM agent dilution automation device.

[0007] The technical solution of the present invention is: a PAM agent dilution automatic device, including a water inlet pipe, a feeding mechanism, a medicine storage box, and a pumping mechanism. The feeding mechanism includes a mixing hopper, a material hopper, a barrel, an intelligent electronic scale, a timer, a PLC controller, and a first screw pump. The mixing hopper is arranged vertically above the material hopper. A first discharge pipe is arranged between the bottom of the mixing hopper and the material hopper. A first ball valve is arranged on the first discharge pipe.

[0008] The hopper is arranged vertically above the barrel and is provided with a flow neck connected to the barrel. The barrel is arranged on an intelligent electronic scale. A second discharge pipe connected to a first screw pump is arranged at the bottom of the barrel. A second ball valve is arranged on the second discharge pipe. The first screw pump pumps out the medicine in the barrel to the medicine storage box.

[0009] The water inlet pipe includes a first branch pipe connected to the medicine storage box and a second branch pipe connected to the mixing bucket. The first branch pipe is provided with a first electromagnetic flowmeter and a first electromagnetic valve; the second branch pipe is provided with a second electromagnetic flowmeter and a second electromagnetic valve;

[0010] The PLC controller is connected with the intelligent electronic scale, the timer, the first ball valve, the second ball valve, the first screw pump, the first electromagnetic flowmeter, the second electromagnetic flowmeter, the first solenoid valve, and the second solenoid valve by signal, and the signal controls the opening and closing of the first solenoid valve, the second solenoid valve, the first ball valve, the second ball valve, and the first screw pump;

[0011] The pumping mechanism is connected to the medicine storage box to pump out the medicine and deliver it.

[0012] When the above technical solution is adopted and PAM agent is directly added into the medicine storage box, it is easy for PAM to clump or agglomerate. Therefore, the present application allows the PAM agent to enter the mixing bucket and controls the water inlet flow rate of the second branch, and pre-mixes it in the mixing bucket according to the proportion required by the process to form a fluid state that is easier to dissolve in the medicine storage box, rather than directly putting the powder into the medicine storage box.

[0013] Then, the fluid PAM agent mixed with water is opened and closed through the first ball valve on the first discharge pipe and enters the hopper. At this time, due to the differences in the formulation of the agent adjusted in the process at different times, the premixed agents in the mixing hopper have different viscosities. In the process of automated dosing, lack of manual observation, the agent may remain due to excessive viscosity, and the overall water volume of the medicine storage box needs to be adapted according to the dosage of PAM powder. For example, if the process requires X liters of PAM powder, Y liters of water in the medicine storage box should be adapted. Assuming that 1 liter of water in the medicine storage box is diverted to the mixing hopper for premixing, the water inlet of the medicine storage box is changed to Y-1 liter. Therefore, it is necessary to control the water inlet of the medicine storage box and the mixing hopper, and avoid the premixed agent from sticking due to excessive viscosity.

[0014] In order to solve the above situation, the present application sets a flow neck with the same diameter in the hopper, and the fluid medicine premixed in the mixing hopper opens the first ball valve of the first discharge pipe and enters the flow neck of the hopper, and then enters the barrel on the smart electronic scale. The weight data generated by the smart electronic scale and the time data of the timer are used to remove the fluctuating data at the beginning and end, and the time period in which the weight value in the middle section increases stably and equally is intercepted, so as to calculate the kinematic viscosity of the medicine through the flow neck, that is, the pipeline method is used to test the kinematic viscosity of the medicine.

[0015] According to the kinematic viscosity data of different reagents, the viscosity of the reagents is judged and divided, and then compared with the preset viscosity process table, the first solenoid valve of the first branch is controlled to open to add a certain amount of water, and the second solenoid valve of the second branch is controlled accordingly, so that the total amount of the medicine storage box and the premixed water is adapted to the PAM reagent dosage this time, thereby keeping the ratio of the PAM dosage and the total water intake constant.

[0016] The premixed medicine is pumped into the medicine storage box through the first screw pump controlled by PLC and frequency conversion, and the intelligent electronic scale can calculate the weight of the premixed fluid medicine and determine the actual dosage based on the premixed water volume. This realizes automatic dosing and can adapt to control the dosage and water intake.

[0017] At the same time, a certain amount of water can be retained from the medicine storage box. After the fluid PAM agent enters the medicine storage box, it enters the mixing hopper and the barrel from the second branch again for flushing. This can not only flush all the residual agents into the medicine storage box and make full use of them, but also flush the equipment to avoid the situation where the residual agents will interfere with the next addition due to changes in the composition of the agents.

[0018] A further configuration of the utility model is that the device further comprises a first small mixer extending into the mixing bucket, and a material conveying pipe.

[0019] The utility model is further configured as follows: a guiding slope is provided at the bottom of the barrel, and the first discharge pipe is communicated with a side of the guiding slope with a lower height.

[0020] A further configuration of the utility model is that the device further comprises a second small mixer extending into the mixing bucket.

[0021] The above technical solution can be used to premix the liquid, and a first small mixer and a second small mixer (not shown) can be additionally provided to facilitate premixing and secondary mixing after water replenishment. The provided guiding slope facilitates the fluid agent to flow to the first screw pump.

[0022] The utility model is further configured as follows: a plurality of stirring tanks and a plurality of stirrers are separately arranged in the medicine storage box, a liquid level meter is arranged in the medicine storage box, and the liquid level meter is connected to the PLC controller signal.

[0023] The above technical solution is adopted to calculate the liquid level of the medicine storage box, and further stir and mix the medicine liquid in the medicine storage box.

[0024] The utility model is further configured as follows: a sewage discharge pipe is provided at the bottom of each stirring tank of the medicine storage box, and a third ball valve is provided on the sewage discharge pipe.

[0025] The above technical solution is adopted to facilitate the cleaning of the medicine storage box.

[0026] The utility model is further configured as follows: the pumping mechanism includes a water outlet pipe and a second screw pump, the water outlet pipe is respectively connected to the medicine storage box and the second screw pump, the water outlet pipe is provided with a pressure gauge, and a fourth ball valve and a check valve located on the front and rear sides of the second screw pump.

[0027] By adopting the above technical solution, the second screw pump is used to pump the medicine liquid in the medicine storage box to the specified position, the check valve is used to prevent backflow, and the pressure gauge is used to detect the pressure in the tube.

[0028] A further configuration of the utility model is that both the first screw pump and the second screw pump are provided with a frequency conversion controller.

[0029] The beneficial effects of the utility model are as follows: through the modification and design of the equipment, the situation of PAM powder directly being put into the medicine storage box and forming agglomerates is avoided. By premixing in the mixing hopper, the kinematic viscosity of the premixed fluid medicine is obtained with the cooperation of the hopper, the barrel, the intelligent electronic scale and other equipment, and water is added to avoid the fluid medicine sticking and remaining. Moreover, when the medicine is almost finished, the mixing hopper and the barrel can be rinsed to remove the residue, which is fully beneficial to the medicine, keeps the equipment clean, and avoids interference between medicines of different components. With the help of the PLC controller and the frequency conversion controller, the PAM medicine is accurately controlled to enter the medicine storage box, and automatic addition, automatic control of the dosage and water intake are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The structure of the embodiment of the present invention Figure 1 ;

[0031] Figure 2 The structure of the embodiment of the present invention Figure 2 .

[0032] Among them, 1-water inlet pipe, 11-first branch pipe, 111-first electromagnetic flowmeter, 112-first electromagnetic valve, 12-second branch pipe, 121-second electromagnetic flowmeter, 122-second electromagnetic valve, 2-medicine storage box, 21-mixing tank, 22-mixer, 23-liquid level meter, 24-drain pipe, 241-third ball valve, 31-mixing bucket, 311-first discharge pipe, 312-first ball valve, 32-feeding hopper, 33-barrel, 331-second discharge pipe, 332-second ball valve, 333-guide slope, 34-intelligent electronic scale, 35-first screw pump, 4-feeding pipe, 51-water outlet pipe, 52-second screw pump, 53-pressure gauge, 54-fourth ball valve, 55-check valve.

[0033] In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. DETAILED DESCRIPTION

[0034] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be further described in detail in detail and in detail in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0035] like Figure 1-2 As shown, a PAM agent dilution automation device includes a water inlet pipe 1, a feeding mechanism, a medicine storage box 2, and a pumping mechanism. The feeding mechanism includes a mixing hopper 31, a feeding hopper 32, a barrel 33, an intelligent electronic scale 34, a timer, a PLC controller, and a first screw pump 35. The mixing hopper 31 is arranged vertically above the feeding hopper 32. A first discharge pipe 311 is arranged between the bottom of the mixing hopper 31 and the feeding hopper 32. A first ball valve 312 is arranged on the first discharge pipe 311. The feeding hopper 32 is arranged vertically above the barrel 33 and is provided with a flow neck 321 connected to the barrel 33. The barrel 33 is arranged on the intelligent electronic scale 34. A second discharge pipe 331 connected to the first screw pump 35 is arranged at the bottom of the barrel. A second ball valve 332 is arranged on the second discharge pipe 331. The first screw pump 35 pumps the medicine in the barrel 33 to the medicine storage box 2;

[0036] The water inlet pipe 1 includes a first branch pipe 11 connected to the medicine storage box 2 and a second branch pipe 12 connected to the mixing bucket 31. The first branch pipe 11 is provided with a first electromagnetic flowmeter 111 and a first electromagnetic valve 112; the second branch pipe 12 is provided with a second electromagnetic flowmeter 121 and a second electromagnetic valve 122;

[0037] The PLC controller is connected to the intelligent electronic scale 34, the timer, the first ball valve 312, the second ball valve 332, the first screw pump 35, the first electromagnetic flowmeter 111, the second electromagnetic flowmeter 121, the first solenoid valve 112, and the second solenoid valve 122 by signals, and the signals control the opening and closing of the first solenoid valve 112, the second solenoid valve 122, the first ball valve 312, the second ball valve 332, and the first screw pump 35;

[0038] The pumping mechanism is connected to the medicine storage box 2 to pump out the medicine and deliver it.

[0039] Directly adding PAM agent into the medicine storage box 2 may easily cause PAM to clump or agglomerate. Therefore, the present application allows the PAM agent to enter the mixing bucket 31, and controls the water inlet flow rate of the second branch, and pre-mixes it in the mixing bucket 31 according to the process requirements to form a fluid state that is easier to dissolve in the medicine storage box 2, rather than directly adding the powder into the medicine storage box 2.

[0040] Then the fluid PAM agent mixed with water is opened and closed through the first ball valve 312 on the first discharge pipe 311, and enters the hopper 32. At this time, due to the difference in the formulation of the agent adjusted by the process at different times, the premixed agents in the mixing hopper 31 have different viscosities. In the process of automatic dosing, lack of manual observation, the agent may remain due to high viscosity, and the overall water volume of the medicine storage box 2 needs to be adapted according to the dosage of PAM powder. For example, if the process requires X liters of PAM powder, Y liters of water in the medicine storage box 2 are adapted. Assuming that 1 liter of water in the medicine storage box 2 is diverted to the mixing hopper 31 for premixing at this time, the water inlet of the medicine storage box 2 is changed to Y-1 liter. Therefore, it is necessary to control the water inlet of the medicine storage box 2 and the water inlet of the mixing hopper 31, and avoid the premixed agent from sticking due to high viscosity.

[0041] In order to solve the above situation, the present application sets a flow neck 321 of the same diameter in the hopper 32, and the fluid medicine premixed in the mixing hopper 31 opens the first ball valve 312 of the first discharge pipe 311 and enters the flow neck 321 of the hopper, and then enters the barrel 33 on the smart electronic scale 34. The weight data generated by the smart electronic scale 34 and the time data of the timer are used to remove the fluctuating data at the beginning and end, and the time period in which the weight value in the middle section increases stably and equally is intercepted, so as to calculate the kinematic viscosity of the medicine through the flow neck 321, that is, the pipeline method is used to test the kinematic viscosity of the medicine.

[0042] According to the kinematic viscosity data of different medicines, the viscosity of the medicines is judged and divided, and then compared with the preset viscosity process table, the first solenoid valve 112 of the first branch is controlled to open to add a certain amount of water, and the second solenoid valve 122 of the second branch is controlled accordingly, so that the total amount of the medicine storage box 2 and the premixed water is adapted to the PAM medicine dosage this time, thereby keeping the ratio of the PAM dosage and the total water intake constant.

[0043] The premixed medicine is pumped into the medicine storage box 2 through the first screw pump 35 controlled by PLC and frequency conversion, thereby realizing automatic dosing and being able to adapt and control the amount of medicine added and the amount of water inlet.

[0044] At the same time, a certain amount of water can be retained from the medicine storage box 2, and after the fluid PAM agent enters the medicine storage box 2, it enters the mixing bucket 31 and the barrel 33 from the second branch again for flushing, which can not only flush all the residual agents into the medicine storage box 2 and make full use of them, but also flush the equipment to avoid the situation where the residual agents will interfere with the next addition of the agent composition.

[0045] The device further comprises a first small mixer 22 extending into the mixing bucket, and a material delivery pipe 4 .

[0046] A guiding slope 333 is provided at the bottom of the barrel 33 , and the first discharge pipe 311 is communicated with a side of the guiding slope 333 at a lower height.

[0047] The device also includes a second small mixer 22 extending into the mixing bucket.

[0048] If premixing is required, a first small mixer 22 and a second small mixer 22 (not shown) can be additionally provided to facilitate premixing and secondary mixing after water replenishment. The provided guiding slope 333 facilitates the fluid agent to flow to the first screw pump 35 .

[0049] The medicine storage box 2 is provided with a plurality of stirring tanks 21 and a plurality of stirrers 22 . A liquid level meter 23 is provided in the medicine storage box 2 . The liquid level meter 23 is connected to the PLC controller signal.

[0050] Calculate the liquid level of medicine storage box 2, and further stir and mix the medicine liquid in medicine storage box 2.

[0051] A sewage pipe 24 is disposed at the bottom of each stirring tank 21 of the medicine storage box, and a third ball valve 241 is disposed on the sewage pipe 24 .

[0052] The medicine storage box 2 is convenient for cleaning.

[0053] The pumping mechanism includes a water outlet pipe 51 and a second screw pump 52. The water outlet pipe 51 is connected to the medicine storage box 2 and the second screw pump 52 respectively. The water outlet pipe 51 is provided with a pressure gauge 53, and a fourth ball valve 54 and a check valve 55 located on the front and rear sides of the second screw pump 52.

[0054] By adopting the above technical solution, the second screw pump 52 is used to pump the liquid medicine in the medicine storage box 2 to a designated position, the check valve 55 is used to prevent backflow, and the pressure gauge 53 detects the pressure in the tube.

[0055] The first screw pump and the second screw pump 52 are both provided with a variable frequency controller.

[0056] Through the modification and design of the equipment, the PAM powder is prevented from being directly put into the medicine storage box 2 and forming agglomerates. By premixing in the mixing hopper 31, the kinematic viscosity of the premixed fluid medicine is obtained with the cooperation of the hopper, barrel 33, intelligent electronic scale 34 and other equipment, and water is added to avoid the fluid medicine sticking and remaining. Moreover, when the medicine is almost finished, the mixing hopper 31 and barrel 33 can be rinsed to remove the residue, which is fully beneficial to the medicine, keeps the equipment clean, and avoids interference between medicines of different components. With the PLC controller and frequency conversion controller, the PAM medicine is accurately controlled to enter the medicine storage box 2, realizing automatic dosing, automatic control of the dosage and water intake.

[0057] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A PAM agent dilution automation device, characterized in that: It includes a water inlet pipe, a feeding mechanism, a medicine storage box, and a pumping mechanism. The feeding mechanism includes a mixing hopper, a material hopper, a barrel, an intelligent electronic scale, a timer, a PLC controller, and a first screw pump. The mixing hopper is arranged vertically above the material hopper. A first discharge pipe is arranged between the bottom of the mixing hopper and the material hopper. A first ball valve is arranged on the first discharge pipe. The hopper is arranged vertically above the barrel and is provided with a flow neck connected to the barrel. The barrel is arranged on an intelligent electronic scale. A second discharge pipe connected to a first screw pump is arranged at the bottom of the barrel. A second ball valve is arranged on the second discharge pipe. The first screw pump pumps out the medicine in the barrel to the medicine storage box. The water inlet pipe includes a first branch pipe connected to the medicine storage box and a second branch pipe connected to the mixing bucket. The first branch pipe is provided with a first electromagnetic flowmeter and a first electromagnetic valve; the second branch pipe is provided with a second electromagnetic flowmeter and a second electromagnetic valve; The PLC controller is connected with the intelligent electronic scale, the timer, the first ball valve, the second ball valve, the first screw pump, the first electromagnetic flowmeter, the second electromagnetic flowmeter, the first solenoid valve, and the second solenoid valve by signal, and the signal controls the opening and closing of the first solenoid valve, the second solenoid valve, the first ball valve, the second ball valve, and the first screw pump; The pumping mechanism is connected to the medicine storage box to pump out the medicine and deliver it.

2. The PAM agent dilution automation device according to claim 1, characterized in that: The device also includes a first small mixer extending into the mixing bucket and a material conveying pipe.

3. The PAM agent dilution automation device according to claim 2 is characterized in that: The bottom of the barrel is provided with a guiding slope, and the first discharge pipe is communicated with the side of the guiding slope with a lower height.

4. The PAM agent dilution automation device according to claim 3 is characterized in that: The device also includes a second small mixer extending into the mixing bucket.

5. The PAM agent dilution automation device according to claim 2, characterized in that: A plurality of stirring tanks and a plurality of stirrers are separately arranged in the medicine storage box. A liquid level meter is arranged in the medicine storage box. The liquid level meter and the stirrer are connected with a PLC controller signal.

6. The PAM agent dilution automation device according to claim 5, characterized in that: The bottom of each stirring tank of the medicine storage box is respectively provided with a sewage pipe, and the sewage pipe is provided with a third ball valve.

7. The PAM agent dilution automation device according to claim 2, characterized in that: The pumping mechanism includes a water outlet pipe and a second screw pump. The water outlet pipe is connected to the medicine storage box and the second screw pump respectively. The water outlet pipe is provided with a pressure gauge, a fourth ball valve and a check valve located on the front and rear sides of the second screw pump.

8. The PAM agent dilution automation device according to claim 7, characterized in that: The first screw pump and the second screw pump are both provided with a variable frequency controller.

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