CN210994126U

CN210994126U - P L C-based dosing system with excellent mixing effect

Info

Publication number: CN210994126U
Application number: CN201921862713.3U
Authority: CN
Inventors: 吴慧华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-14
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to a sewage treatment device technical field discloses a mix good medicine system of effect based on P L C, include liquid storage pot, centrifugal pump, the medicine mixing barrel that connects gradually through the pipeline, be equipped with rotor flow meter on the outlet conduit of medicine mixing barrel, be equipped with the fluviograph in the liquid storage pot, still include P L C controller, P L C controller with fluviograph, centrifugal pump and rotor flow meter circuit connection respectively, the medicine mixing barrel includes the first medicine mixing barrel, the second medicine mixing barrel that connect gradually through the pipeline, first medicine mixing barrel, second medicine mixing barrel all include the staving, connect the drain pipe at staving top with connect the feed liquor pipe of staving bottom, the feed liquor pipe is in the staving has upwards extended section and has porous structure's branch liquid shower nozzle at end-to-end connection, the utility model discloses can stir once more when adding the medicine through the particulate matter in the medicine mixing barrel liquid medicine and mix, the particulate matter in the medicine mixing barrel has avoided causing the medicine system to block up.

Description

P L C-based dosing system with excellent mixing effect

Technical Field

The utility model relates to a sewage treatment device technical field especially relates to a mix excellent medicine system of effect based on P L C.

Background

In recent years, with the rapid development of the economy of China, the living standard of people is gradually improved, with the development of modern industry and the acceleration of population urbanization, the amount of industrial wastewater and urban sewage is getting larger and larger, the water environment pollution is increasingly serious, and the current environmental pollution situation of China has attracted the attention of the governments of China and various places. In 2015, 4 months, the State administration officials formally release a water pollution prevention and treatment action plan (abbreviated as 'ten items of water') which becomes an action guide for the water pollution prevention and treatment work in the whole country currently and in the future. Ten pieces of water are based on three major directions of town sewage, industrial sewage and rural sewage treatment, and the quality of the national water environment needs to be improved in stages by 2020, so that the seriously polluted water body is greatly reduced.

The wastewater treatment, especially the industrial wastewater treatment, mainly adopts a chemical and physical method or a biochemical oxidation method to treat sewage according to different pollution factors. The chemical and physical method mainly comprises the processes of chemical reaction, flocculation, precipitation and filtration, the quality of the wastewater treatment process is closely related to factors such as wastewater quality, chemical agent selection, process reaction time design and the like, and is also closely related to the chemical agent adding mode, the chemical and physical treatment process related dosing control mode in the wastewater treatment is very important, and the dosing process must be continuous, accurate and effective, so that the reasonable and scientific dosing device system design can provide technical guarantee for wastewater treatment. The wastewater treatment and dosing mainly comprises two processes, namely, the dissolution and dosing, namely, the stirring, dissolution and dilution of the medicine and the storage of the medicine liquid, and a medicine dosing control system. Sewage treatment system generally needs to handle large-traffic sewage, can produce more precipitable particulate matter to sewage in the processing procedure, and the deposit among the prior art generally is through the sedimentation tank to the particulate matter in the sewage deposit. Similarly, the liquid medicine used in sewage treatment also contains water-insoluble particles or impurities occasionally, the impurities in the existing dosing system are generally removed through a filtering system, and the filtering and impurity removal easily causes the blockage of the dosing system and is not easy to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a medicine system that mixing effect is good based on P L C can the automatic reagent feeding, and can prevent medicine system's jam, has improved the purification efficiency of sewage.

In order to achieve the purpose, the utility model provides a medicine adding system with excellent mixing effect based on P L C, which comprises a liquid storage tank, a centrifugal pump and a medicine mixing barrel which are connected in sequence through pipelines, wherein a water outlet pipeline of the medicine mixing barrel is provided with a rotor flow meter, and a water level meter is arranged in the liquid storage tank;

the water level meter further comprises a P L C controller, and the P L C controller is respectively in circuit connection with the water level meter, the centrifugal pump and the rotameter;

mix the explosive barrel including the first explosive barrel of mixing, the second that connect gradually through the pipeline and mix the explosive barrel, first explosive barrel of mixing, second mix the explosive barrel and all include the staving, connect the drain pipe at staving top and connection the feed liquor pipe of staving bottom, the feed liquor pipe is in upwards extend section and have porous structure's branch liquid shower nozzle at end-to-end connection in the staving.

As the preferred scheme, be equipped with the inlet tube of decontaminating on the lateral wall of staving, the bottom of staving is equipped with the drain pipe of decontaminating, the axis of the inlet tube of decontaminating with the lateral wall of staving is tangent, be equipped with the valve on inlet tube of decontaminating, the drain pipe of decontaminating.

Preferably, the valves on the sewage disposal water inlet pipe and the sewage disposal water outlet pipe are electromagnetic valves, and the electromagnetic valves are in circuit connection with the P L C controller.

Preferably, the bottom in the barrel body is in an inverted cone shape.

Preferably, the barrel is a sealing structure and made of metal.

The utility model provides a medicine system that mixed effect is good based on P L C, include the liquid storage pot that connects gradually through the pipeline, the centrifugal pump, mix the explosive barrel including first explosive barrel, the second mixes the explosive barrel, the liquid medicine is at first explosive barrel, the misce bene in the second explosive barrel, first explosive barrel that mixes, the bottom that the second mixes the explosive barrel is the feed liquor pipe of feeding, first explosive barrel that mixes, the top that the second mixes the explosive barrel is the drain pipe of play liquid, the liquid medicine mixes the liquid medicine in the staving once more through the branch liquid shower nozzle of connecting on the feed liquor pipe, particulate matter impurity in the liquid medicine subsides downwards under the action of gravity, subside in the bottom of staving, so that discharge to the outside of staving, particulate matter in the liquid medicine has been realized, the getting rid of impurity, the purifying effect to the liquid medicine has been improved, sewage treatment's effect is improved.

Simultaneously, the P L C controller can receive rotor flow meter's liquid medicine volume, and through the behavior of control centrifugal pump, and then control first medicine mixing barrel, the second purification of mixing in the medicine barrel, the play dose of mixed liquid medicine, the degree of consistency and the precision of the mixture of liquid medicine when can guaranteeing to add the medicine improve the treatment effect of sewage.

Drawings

Fig. 1 is a schematic system structure diagram of a dosing system based on P L C and having an excellent mixing effect in an embodiment of the present invention;

fig. 2 is a schematic perspective view of a medicine mixing barrel of a medicine adding system with excellent mixing effect based on P L C in the embodiment of the present invention;

fig. 3 is a schematic view of the internal structure of a medicine mixing barrel of a medicine adding system with excellent mixing effect based on P L C in the embodiment of the present invention;

in the figure, 10 parts of a liquid storage tank, 11 parts of a water level gauge, 20 parts of a centrifugal pump, 30 parts of a medicine mixing barrel, 31 parts of a first medicine mixing barrel, 32 parts of a second medicine mixing barrel, 40 parts of a rotor flow meter, 50 parts of a barrel body, 51 parts of a liquid outlet pipe, 52 parts of a liquid inlet pipe, 53 parts of a liquid separating spray head, 54 parts of a sewage cleaning water inlet pipe, 55 parts of a sewage cleaning water outlet pipe, 56 parts of an electromagnetic valve and 60 parts of a P L C controller.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 3, the utility model discloses a medicine system that mixing effect is good based on P L C of preferred embodiment, including liquid storage pot, centrifugal pump, mixing medicine bucket, can deposit the liquid medicine, get rid of particulate matter impurity through mixing medicine bucket simultaneously, can carry out accurate control to the medicine volume through P L C system, guarantee that discharged liquid medicine is even, after filtering.

Based on the above technical scheme, the present embodiment provides a dosing system with excellent mixing effect based on P L C, which includes a liquid storage tank 10, a centrifugal pump 20, and a drug mixing barrel 30 connected in sequence through a pipeline, wherein the liquid storage tank 10 is used for storing drug liquid, when sewage is treated, the drug liquid is generally stored for standby after being dissolved and proportioned, and the drug liquid of the dosing system is stored in the liquid storage tank 10.

Wherein, the outlet pipe of the medicine mixing barrel 30 is provided with a rotor flow meter 40, which can be a Y L-L ZD metal rotor flow meter of Jiangsu sub dragon meter limited company, and can also be other types of rotor flow meters in the prior art.

Wherein, be equipped with fluviograph 11 in the liquid storage pot 10, fluviograph 11 can select for use the direction pulsed level sensor F L series of keyence (china) ltd, and the liquid level response is not influenced by choked flow part in the environment, can adjust to the attachment is automatic moreover, realizes stable response, also can adopt other types of fluviographs among the prior art.

The P L C controller 60 is further included, the P L C controller 60 is respectively in circuit connection with the water level gauge 11, the centrifugal pump 20 and the rotor flow meter 40, the rotor flow meter 40 is used for feeding back the medicine liquid output quantity to the P L C controller 60 in real time, the centrifugal pump 20 is used for providing driving power for medicine liquid adding, and the water level gauge 11 is used for feeding back the liquid level in the liquid storage tank 10 to the liquid storage tank 10 in real time.

Specifically, centrifugal pump 20 may be a CNP/south Pump CH L4-20 centrifugal pump, or any other type of centrifugal pump known in the art.

Specifically, mix medicine bucket 30 includes first medicine bucket 31, the second medicine bucket 32 of mixing that connects gradually through the pipeline, and first medicine bucket 31, the second medicine bucket 32 of mixing mutually supports the improvement and mixes the medicine effect.

Wherein, first medicine mixing barrel 31, second medicine mixing barrel 32 all include staving 50, connect the drain pipe 51 at the top of staving 50 and connect the feed liquor pipe 52 in the staving 50 bottom, and feed liquor pipe 52 has upwards extension section and has porous structure's branch liquid shower nozzle 53 at end connection in staving 50. The liquid inlet pipe 52 is an inlet of the liquid medicine, the liquid outlet pipe 51 is an outlet of the liquid medicine, and the liquid separating nozzle 53 is used for dispersing the liquid medicine in the barrel 50, so that the mixing effect of the liquid medicine is improved. Valves are also arranged on the liquid outlet pipe 51 and the liquid inlet pipe 52 of the first medicine mixing barrel 31 and the second medicine mixing barrel 32.

Preferably, a decontamination inlet pipe 54 is disposed on a side wall of the barrel 50, a decontamination drain pipe 55 is disposed at the bottom of the barrel 50, and the decontamination inlet pipe 54 and the decontamination drain pipe 55 are used for discharging impurities at the bottom of the barrel 50 out of the barrel 50. The axis of the decontamination inlet tube 54 is tangent to the sidewall of the barrel 50, and when cleaning liquid is introduced into the decontamination inlet tube 54, the cleaning liquid water flow tangent to the barrel 50 forms spiral cleaning water flow in the barrel 50, so that the impurities in the barrel 50 can be discharged out of the barrel 50 through the decontamination drain tube 55 at the bottom of the barrel 50.

Specifically, the valves are disposed on the dirt-removing water inlet pipe 54 and the dirt-removing water outlet pipe 55, and the valves are closed when the barrel 50 does not need to be cleaned.

Preferably, the valves on the sewage inlet pipe 54 and the sewage outlet pipe 55 are solenoid valves 56, and the solenoid valves 56 are electrically connected with the P L C controller 60, so that the solenoid valves 56 can be opened or closed under the control of the P L C controller 60.

Preferably, the bottom of the tub 50 is formed in an inverted cone shape, so that the effect of discharging impurities can be improved.

Preferably, the tub 50 is a sealing structure and made of metal.

The working principle of the medicine adding system is as follows:

1. the liquid medicine is stored in the liquid storage tank 10, the P L C controller 60 obtains a medicine adding instruction, the P L C controller controls the water level gauge 11, the centrifugal pump 20 and the rotor flow meter 40 to work, the centrifugal pump 20 conveys the liquid medicine to the first medicine mixing barrel 31 and the second medicine mixing barrel 32, and at the moment, the P L C controller 60 controls the electromagnetic valve 56 to be in a closed state;

2. the liquid levels of the liquid medicines in the first medicine mixing barrel 31 and the second medicine mixing barrel 32 rise along with the increase of the medicine feeding amount, meanwhile, impurities in the liquid medicines in the first medicine mixing barrel 31 and the second medicine mixing barrel 32 settle at the bottom of the barrel body 50, when the medicine feeding amount measured by the rotameter 40 reaches the medicine feeding amount in the medicine feeding instruction obtained by the P L C controller 60, the P L C controller controls the centrifugal pump 20 to stop working, and the medicine feeding system stops feeding medicine;

3. p L C controller 60 counts certain medicine time back at this medicine system work fixed time or rotor flow meter 40, first explosive mixing barrel 31, the valve on the feed liquor pipe 52 of second explosive mixing barrel 32 is closed, P L C controller 60 control decontamination inlet tube 54, the solenoid valve 56 of decontamination drain pipe 55 is opened, first explosive mixing barrel 31, the decontamination inlet tube 54 of second explosive mixing barrel 32 gets into the washing liquid, the washing liquid is discharged from decontamination drain pipe 55, make first explosive mixing barrel 31, second explosive mixing barrel 32 can self-cleaning, after the cleanness is accomplished, get into next medicine cycle.

To sum up, the utility model discloses can improve the purity that the medicine system added the medicine, to liquid medicine edulcoration once more before adding the medicine, improve efficiency and the quality of adding the medicine to the automation of liquid medicine, have very strong practicality.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A dosing system with excellent mixing effect based on P L C is characterized by comprising a liquid storage tank (10), a centrifugal pump (20) and a medicine mixing barrel (30) which are sequentially connected through pipelines, wherein a water outlet pipeline of the medicine mixing barrel (30) is provided with a rotor flow meter (40), and a water level meter (11) is arranged in the liquid storage tank (10);

the water level meter further comprises a P L C controller (60), wherein the P L C controller (60) is respectively in circuit connection with the water level meter (11), the centrifugal pump (20) and the rotameter (40);

mix explosive barrel (30) and include first explosive barrel (31), the second explosive barrel (32) of mixing that connects gradually through the pipeline, first explosive barrel (31), the second explosive barrel (32) of mixing all include staving (50), connect drain pipe (51) and the connection at staving (50) top are in the feed liquor pipe (52) of staving (50) bottom, feed liquor pipe (52) are in to last extension section and have porous structure's branch liquid shower nozzle (53) in staving (50).

2. The dosing system with excellent mixing effect based on P L C according to claim 1, wherein a decontamination water inlet pipe (54) is provided on the sidewall of the barrel (50), a decontamination water outlet pipe (55) is provided at the bottom of the barrel (50), the axis of the decontamination water inlet pipe (54) is tangent to the sidewall of the barrel (50), and valves are provided on the decontamination water inlet pipe (54) and the decontamination water outlet pipe (55).

3. The dosing system with excellent mixing effect based on P L C according to claim 2, wherein the valves on the sewage inlet pipe (54) and the sewage drain pipe (55) are solenoid valves (56), and the solenoid valves (56) are electrically connected with the P L C controller (60).

4. The dosing system with excellent mixing effect based on P L C according to claim 3, wherein the bottom inside the barrel (50) is in an inverted cone shape.

5. The P L C-based dosing system with excellent mixing effect according to claim 4, wherein the barrel (50) is a sealed structure and made of metal.