CN209835732U - Automatic adjust dosage controlling means - Google Patents
Automatic adjust dosage controlling means Download PDFInfo
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- CN209835732U CN209835732U CN201920398605.9U CN201920398605U CN209835732U CN 209835732 U CN209835732 U CN 209835732U CN 201920398605 U CN201920398605 U CN 201920398605U CN 209835732 U CN209835732 U CN 209835732U
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Abstract
The utility model discloses a control device for automatically adjusting the dosage, which is characterized by comprising a sewage adjusting tank, a pH adjusting tank, a medicament tank and a reaction tank which are arranged in sequence; a turbidity meter is arranged in the sewage adjusting tank, a raw water outlet is connected with a lift pump through a pipeline, and the lift pump is connected with the reaction tank through a pipeline; the turbidimeter of the sewage regulating tank is electrically connected with the controller; the pH adjusting tank is provided with a liquid level meter, the bottom of the pH adjusting tank is provided with a mixing stirrer, the bottom of the pH adjusting tank is provided with a liquid outlet, the liquid outlet is provided with an electromagnetic valve, and the liquid outlet of the pH adjusting tank is connected with the liquid inlet of the reaction tank through a pipeline; the top of the medicament pool is provided with a medicament feeding port, the bottom of the medicament pool is provided with an anti-sinking stirrer, the medicament pool is provided with a liquid suction pipeline connected with a variable-frequency medicament feeding pump, and the variable-frequency medicament feeding pump is electrically connected with a controller; the reaction tank is provided with two stirrers, and a pH meter is arranged in the reaction tank and is electrically connected with the controller. The utility model provides an automatic adjust dosage controlling means.
Description
Technical Field
The utility model relates to a sewage treatment plant technical field, concretely relates to automatic adjust dosage controlling means.
Background
The sewage treatment process needs to add a flocculating agent, the flocculating agent PAM is a high molecular product generated by copolymerization of acrylamide and sodium acrylate in a certain proportion, is a water-soluble high molecular polymer, is insoluble in most organic solvents, has good flocculation property, can reduce the friction resistance between liquids, and can be divided into four types of non-ionic type, anionic type, cationic type and amphoteric type according to the ionic characteristics. The conventional dosing device comprises a stirring tank body, a liquid storage tank body and a metering pump, wherein a medicament is uniformly mixed in the stirring tank body, then is placed in the medicament storage tank body, and is added to a dosing point through the metering pump. In the medicine adding process, the medicine storage time is long, the medicine naturally settles to form a hard block, the medicine adding pipeline is often blocked, manual cleaning is needed, time and labor are wasted, and the situation that the medicine is excessively added and the medicine is wasted exists in the medicine adding process, so that the control device capable of automatically adjusting the medicine adding amount is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide a medicament mixing rate is fast, and the misce bene prevents the pipe blockage, and automatically regulated adds the dose and the flocculating agent is just abundant automatically regulated dosage controlling means.
In order to achieve the purpose, the technical scheme of the utility model is to design a control device for automatically adjusting the dosage, which comprises a sewage adjusting tank, a pH adjusting tank, a medicament tank and a reaction tank which are arranged in sequence; a turbidimeter is arranged in the sewage regulating tank, a raw water inlet is formed in the upper part of the sewage regulating tank, a raw water outlet is formed in the lower part of the sewage regulating tank, the raw water outlet is connected with a lift pump through a pipeline, and the lift pump is connected with the reaction tank through a pipeline; the turbidimeter of the sewage regulating tank is electrically connected with the controller; the pH adjusting tank is provided with an acid adding port and an alkali adding port, the pH adjusting tank is provided with a liquid level meter, the liquid level meter is electrically connected with the controller, the bottom of the pH adjusting tank is provided with a mixing stirrer, the bottom of the pH adjusting tank is also provided with a liquid outlet, the liquid outlet is provided with an electromagnetic valve, the electromagnetic valve is electrically connected with the controller, and the liquid outlet of the pH adjusting tank is connected with the liquid inlet of the reaction tank through a pipeline; the top of the medicament pool is provided with a medicament feeding port, the bottom of the medicament pool is provided with an anti-settling stirrer, the medicament pool is provided with a liquid suction pipeline, the liquid suction pipeline is connected with a variable-frequency medicament feeding pump, the variable-frequency medicament feeding pump is electrically connected with a controller, and the variable-frequency medicament feeding pump is connected with the reaction pool through a pipeline; the reaction tank is provided with two stirrers, a pH meter is arranged in the reaction tank, and the pH meter is electrically connected with the controller.
The fluctuation of the quality of the incoming water in the sewage regulating reservoir causes that the adding amount of the PAC flocculating agent can not be controlled, the actual adding amount is often higher than the theoretical adding amount, on one hand, the manual labor is increased, on the other hand, the medicament is wasted, and therefore, a control device for automatically regulating the adding amount is arranged.
An online turbidimeter is arranged in the sewage regulating tank, a real-time monitoring signal is transmitted to the PLC control system, the optimal dosage is obtained after the comparison with a turbidity-dosage step curve arranged in the control system, information is converted into analog quantity, the input frequency of the variable-frequency dosage pump is enhanced or weakened, and the automatic dosage regulating function is achieved.
PAM is slowly added into a dissolver with stirring and heating measures, the solution is prepared at 60 ℃, so that the mechanical shearing which is too violent for a long time is avoided, the stirrer rotates at 60-200 r/min, otherwise, the polymer is degraded, and the using effect is influenced.
When the turbidity meter arranged in the sewage regulating tank monitors that the data is increased, the power of the variable-frequency dosing pump is increased, and the dosing quantity is increased; when the monitoring data is reduced, the power of the variable-frequency dosing pump is reduced, and the dosing amount is reduced.
As the preferred technical scheme, the medicine feeding port is provided with a vibrating screen, and the aperture of the vibrating screen is 400-600 meshes. Since PAM is hygroscopic, it may cause PAM to bind due to storage relationships, affecting the solubility of PAM.
As the preferred technical scheme, the wall of the medicament pool is provided with a heating resistance wire. Heating the solution to a temperature of 60 c accelerates the dissolution of PAM.
As a preferred technical scheme, a filter is arranged between the liquid suction pipeline and the variable-frequency dosing pump, and the pore size of the filter is 5 microns. Preventing incomplete or insufficient dissolution of PAM during dissolution results in local flocculant concentrations that are too high and the filter helps to filter impurities.
As a preferable technical scheme, a back flush valve is arranged between the filter and the variable-frequency dosing pump. The back flush valve is added, so that the filter can be conveniently flushed, and the long-term use and maintenance of the filter are facilitated.
As the preferred technical scheme, a flow meter is arranged between the liquid suction pipeline and the variable-frequency dosing pump. The flowmeter is electrically connected with the controller, and the filter is indicated whether to be blocked or not through the flow value of the flowmeter, so that the real-time flow value can be conveniently measured, and the dosage can be conveniently controlled.
As a preferred technical scheme, the bottom of the reaction tank is provided with an air hole, and the air hole is connected with an air pump through a pipeline. The arrangement of the air holes enables the flocculating agent to fully react with raw water, and the using amount of the flocculating agent is reduced.
The utility model has the advantages and the beneficial effects that: an online turbidimeter is arranged in the sewage regulating tank, a real-time monitoring signal is transmitted to the PLC control system, the optimal dosage is obtained after the comparison with a turbidity-dosage step curve arranged in the control system, information is converted into analog quantity, the input frequency of the variable-frequency dosage pump is enhanced or weakened, and the automatic dosage regulating function is achieved. When the turbidity meter arranged in the sewage regulating tank monitors that the data is increased, the power of the variable-frequency dosing pump is increased, and the dosing quantity is increased; when the monitoring data is reduced, the power of the variable-frequency dosing pump is reduced, and the dosing amount is reduced, so that the optimal flocculation effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. a sewage adjusting tank; 2. a pH adjusting tank; 3. a medicament pool; 4. a reaction tank; 5. a turbidimeter; 6. a raw water inlet; 7. a raw water outlet; 8. a lift pump; 9. a controller; 10. a pH meter; 11. a liquid level meter; 12. a mixing agitator; 13. an electromagnetic valve; 14. an anti-settling agitator; 15. a liquid suction pipe; 16. a variable frequency dosing pump; 17. double stirrers; 18. a filter; 19. a flow meter; 20. air holes; 21. an air pump.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A control device for automatically adjusting the dosage comprises a sewage adjusting tank 1, a pH adjusting tank 2, a medicament tank 3 and a reaction tank 4 which are arranged in sequence; a turbidimeter 5 is arranged in the sewage regulating tank, a raw water inlet 6 is arranged at the upper part of the sewage regulating tank, a raw water outlet 7 is arranged at the lower part of the sewage regulating tank, the raw water outlet is connected with a lift pump 8 through a pipeline, and the lift pump 8 is connected with the reaction tank through a pipeline; the turbidimeter 5 of the sewage regulating tank is electrically connected with the controller; the pH adjusting tank is provided with an acid adding port and an alkali adding port, the pH adjusting tank is provided with a liquid level meter 11, the liquid level meter is electrically connected with a controller 9, the bottom of the pH adjusting tank is provided with a mixing stirrer 12, the bottom of the pH adjusting tank is also provided with a liquid outlet, the liquid outlet is provided with an electromagnetic valve 13, the electromagnetic valve is electrically connected with the controller, and the liquid outlet of the pH adjusting tank is connected with a liquid inlet of the reaction tank through a pipeline; the top of the medicament pool is provided with a medicament feeding port, the bottom of the medicament pool is provided with an anti-sinking stirrer 14, the medicament pool is provided with a liquid suction pipeline 15, the liquid suction pipeline is connected with a variable-frequency medicament feeding pump 16, the variable-frequency medicament feeding pump is electrically connected with a controller, and the variable-frequency medicament feeding pump is connected with the reaction pool through a pipeline; the reaction tank is provided with a double stirrer 17, a pH meter 10 is arranged in the reaction tank, and the pH meter is electrically connected with the controller.
When the pH value in the reaction tank is detected to change, the controller controls the electromagnetic valve to open to add acid and base into the reaction tank.
The drug feeding port is provided with a vibrating screen, and the aperture of the vibrating screen is 400-600 meshes.
And the wall of the medicament pool is provided with a heating resistance wire.
A filter 18 is arranged between the imbibing pipeline and the variable-frequency dosing pump, and the aperture of the filter is 5 mu m.
A back flush valve is arranged between the filter and the variable-frequency dosing pump.
A flowmeter 19 is arranged between the liquid suction pipeline and the variable-frequency dosing pump, and the flowmeter is electrically connected with the controller.
The bottom of the reaction tank is provided with an air hole 20, and the air hole is connected with an air pump 21 through a pipeline.
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 improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A control device for automatically adjusting the dosage is characterized by comprising a sewage adjusting tank, a pH adjusting tank, a medicament tank and a reaction tank which are arranged in sequence; a turbidimeter is arranged in the sewage regulating tank, a raw water inlet is formed in the upper part of the sewage regulating tank, a raw water outlet is formed in the lower part of the sewage regulating tank, the raw water outlet is connected with a lift pump through a pipeline, and the lift pump is connected with the reaction tank through a pipeline; the turbidimeter of the sewage regulating tank is electrically connected with the controller; the pH adjusting tank is provided with an acid adding port and an alkali adding port, the pH adjusting tank is provided with a pH meter and a liquid level meter, the pH meter and the liquid level meter are electrically connected with the controller, the bottom of the pH adjusting tank is provided with a mixing stirrer, the bottom of the pH adjusting tank is also provided with a liquid outlet, the liquid outlet is provided with an electromagnetic valve, the electromagnetic valve is electrically connected with the controller, and the liquid outlet of the pH adjusting tank is connected with the liquid inlet of the reaction tank through a pipeline; the top of the medicament pool is provided with a medicament feeding port, the bottom of the medicament pool is provided with an anti-settling stirrer, the medicament pool is provided with a liquid suction pipeline, the liquid suction pipeline is connected with a variable-frequency medicament feeding pump, the variable-frequency medicament feeding pump is electrically connected with a controller, and the variable-frequency medicament feeding pump is connected with the reaction pool through a pipeline; the reaction tank is provided with two stirrers, a pH meter is arranged in the reaction tank, and the pH meter is electrically connected with the controller.
2. The automatic medicine dosage adjusting control device as claimed in claim 1, wherein the medicine feeding port is provided with a vibrating screen, and the diameter of the vibrating screen is 400-600 meshes.
3. The automatic dosage control device of claim 2, wherein the wall of the drug tank is provided with a heating resistance wire.
4. The automatic dosage control device of claim 3, wherein a filter is disposed between the suction line and the variable frequency dosing pump, and the pore size of the filter is 5 μm.
5. The automatic dosage control device of claim 4, wherein a back flush valve is provided between the filter and the variable frequency dosing pump.
6. The automatic dosage control device of claim 5, wherein a flow meter is disposed between the suction line and the variable frequency dosing pump, and the flow meter is electrically connected to the controller.
7. The automatic medicine dosage adjusting control device as claimed in claim 6, wherein the reaction tank is provided with an air hole at the bottom, and the air hole is connected with an air pump through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398605.9U CN209835732U (en) | 2019-03-27 | 2019-03-27 | Automatic adjust dosage controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920398605.9U CN209835732U (en) | 2019-03-27 | 2019-03-27 | Automatic adjust dosage controlling means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209835732U true CN209835732U (en) | 2019-12-24 |
Family
ID=68908452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920398605.9U Active CN209835732U (en) | 2019-03-27 | 2019-03-27 | Automatic adjust dosage controlling means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209835732U (en) |
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2019
- 2019-03-27 CN CN201920398605.9U patent/CN209835732U/en active Active
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