CN215559231U - Be applicable to colliery waste water treatment in pit adds medicine flow automatic control device - Google Patents
Be applicable to colliery waste water treatment in pit adds medicine flow automatic control device Download PDFInfo
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- CN215559231U CN215559231U CN202122069952.7U CN202122069952U CN215559231U CN 215559231 U CN215559231 U CN 215559231U CN 202122069952 U CN202122069952 U CN 202122069952U CN 215559231 U CN215559231 U CN 215559231U
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Abstract
The utility model discloses an automatic dosing flow control device suitable for underground coal mine wastewater treatment, which comprises a buffer tank, an adjusting valve, a flowmeter I, a coagulation tank, a turbidimeter, a flowmeter II and a PLC (programmable logic controller), wherein a water inlet pipe of the coagulation tank is provided with the turbidimeter, the flowmeter I is connected with the PLC, the buffer tank is used for temporarily storing liquid medicine and is connected with an inlet of the coagulation tank through a pipeline I, the pipeline I is provided with the flowmeter I and is connected with the adjusting valve and the PLC, and the real-time automatic detection of the inflow flow and the turbidity of the coagulation tank is realized; the medicine adding flow is automatically adjusted through the PLC, and the operation response speed is improved; the labor intensity of workers is reduced; the problem of low precision of the underground available dispensing equipment is solved by setting the combination of the buffer tank, the flowmeter II and the regulating valve.
Description
Technical Field
The utility model relates to the technical field of coal mine wastewater treatment, in particular to an automatic dosing flow control device suitable for coal mine underground wastewater treatment.
Background
Coal output in China is the first in the world, and coal mine water generation and discharge amount are the first in national industrial wastewater. According to statistics, the annual water yield of coal mines in China is 75-80 hundred million m3. The mine water treatment of the coal mine in China starts in the middle of the 80 th year of the 20 th century, and in 5800 coal mines in China at present, a few coal mines which are extracted in advance or subjected to underground sewage disposal and diversion are removed, and most of mine water of the coal mines needs to be treated to reach the environmental emission or resource utilization standard.
No matter which process is adopted to treat the coal mine wastewater, coagulant is required to be added to change the surface property of colloid or suspended particles in the wastewater, so that the attraction energy of the colloid or floc is greater than the repulsion energy to promote the coagulation. The common coagulant comprises aluminum salt and ferric salt, and most of the coagulants currently applied to coal mine wastewater treatment adopt polyaluminium chloride (PAC) in the aluminum salt in consideration of coagulation effect and application cost performance.
Due to the requirement of special working conditions in the underground coal mine, the number of available conventional automatic equipment in water treatment is small, automatic adding and flow control of the medicament cannot be realized, the dosage is adjusted by manually rotating a rotating wheel of a metering pump, and meanwhile, the adjustment mode of the metering pump is too coarse, and the control precision of the dosage is poor; coal mine sewage suspended solids change fast, and personnel can't adjust the dosage through wadding group change, and the operation belongs to hysteresis control, leads to the control inaccuracy of dosage.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the automatic dosing flow control device suitable for underground coal mine wastewater treatment, and the automatic dosing flow control device has the advantages of high response speed and high adjustment accuracy.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:
the utility model provides a be applicable to colliery waste water treatment in pit adds medicine flow automatic control device, it includes buffer tank, governing valve, flowmeter I, thoughtlessly congeals pond, turbidity appearance, flowmeter II, PLC controller, thoughtlessly congeal the pond inlet tube and be provided with turbidity appearance, flowmeter I and be connected with the PLC controller, the buffer tank is used for keeping in the liquid medicine, it is through pipeline I and thoughtlessly congeal pond access connection, pipeline I be provided with flowmeter I and governing valve and be connected with the PLC controller.
The device still includes PAC and adds medicinal cupping, measuring pump, and PAC adds the storage liquid medicine in the medicinal cupping, is connected with the buffer tank through pipeline II, sets up the measuring pump on pipeline II and is connected with the PLC controller.
Furthermore, a liquid level sensor is arranged in the buffer tank and connected with the PLC.
The governing valve select for use electric ball valve, its model number is: MGQI-16 DN25,127V MA standard electric ball valve for mining.
The types of the flowmeter I and the flowmeter II are as follows: YHL10 mining intrinsic safety type high pressure flowmeter.
The turbidity meter is characterized in that the types are as follows: YHZ1000 mining intrinsic safety type turbidity monitor.
The PLC controller model or the chip model is as follows: siemens SMART200 PLC.
The liquid level sensor is an ultrasonic liquid level sensor, and the type number of the liquid level sensor is as follows: GUCS5 mining intrinsic safety type ultrasonic water level sensor.
PAC adds the good medicament of stoichiometrical storage and squeezes into the medicament and adds the medicine buffer tank through the measuring pump, and installation ultrasonic wave level sensor in the buffer tank, automatic shutdown measuring pump during high liquid level, automatic opening measuring pump during low liquid level.
This device detects the water regime at coagulating basin front end through increasing turbidity appearance, flowmeter I, sets for through the PLC controller and adds the medicine flow, through II signals of real-time receipt flowmeter, and the regulating valve aperture of control buffer tank adjusts the dose that adds that gets into coagulating basin.
The utility model has the beneficial effects that:
the device realizes the real-time automatic detection of the flow and turbidity of the water in the coagulation tank; the medicine adding flow is automatically adjusted through the PLC, and the operation response speed is improved; the automation degree of the whole dosing system is improved, and the labor intensity of workers is reduced; the problem of low precision of the underground available dispensing equipment is solved by setting the combination of the buffer tank, the flowmeter II and the regulating valve.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
The system comprises a PAC dosing tank 1, a PAC dosing tank 2, a metering pump 3, a turbidity meter 4, a flow meter I, a coagulation tank 5, a buffer tank 6, a regulating valve 7, a flow meter II, and a liquid level sensor 9.
Detailed Description
The technical scheme of the utility model is described below by combining with an attached drawing 1, and the automatic dosing flow control device suitable for underground coal mine wastewater treatment comprises a buffer tank 6, an adjusting valve 7, a flowmeter I4, a coagulation tank 5, a turbidity meter 3, a flowmeter II 8, a PLC (programmable logic controller), a PAC dosing tank 1 and a metering pump 2, wherein a water inlet pipe of the coagulation tank 5 is provided with the turbidity meter 3, the flowmeter I4 is connected with the PLC, the buffer tank 6 is used for temporarily storing liquid medicine and is connected with an inlet of the coagulation tank 5 through a pipeline I, the pipeline I is provided with the flowmeter I4 and is connected with the PLC through the adjusting valve 7, the PAC dosing tank 1 stores liquid medicine and is connected with the buffer tank 6 through the pipeline II, and the metering pump 2 is arranged on the pipeline II and is connected with the PLC.
And a liquid level sensor 9 is arranged in the buffer tank 6, and the liquid level sensor 9 is connected with the PLC.
The governing valve 7 choose electric ball valve, its model is: the MGQI-16 DN25,127V MA standard electric ball valve for the mine; the types of the flowmeter I4 and the flowmeter II 8 are as follows: YHL10 mining intrinsic safety type high-pressure flowmeter; the turbidity meter 3 is characterized in that: YHZ1000 mining intrinsic safety type turbidity monitor; the PLC controller model or the chip model is as follows: siemens SMART200 PLC; the liquid level sensor 9 is an ultrasonic liquid level sensor, and the type thereof is as follows: GUCS5 mining ann's type ultrasonic water level sensor, PAC add medicine 1 store in the good medicament and squeeze into medicine buffer tank 6 with the medicament through measuring pump 2, install ultrasonic liquid level sensor 9 in the buffer tank 6, automatic shutdown measuring pump 2 during the high liquid level, automatic opening measuring pump 2 during the low liquid level.
An outlet pipeline of the buffer tank 6 is provided with an adjusting ball valve and a flowmeter II 8, the flow value of the flowmeter II 8 is input into a PLC controller by using a 4-20mA signal, and the PLC controller outputs a 4-20mA signal according to calculation to control the opening of an adjusting valve 7, so that the dosage is controlled; 5 sewage inlet canals of coagulating basin are installed and are thrown into turbidity meter 3, open channel flowmeter I4, set for adding medicine flow of buffer tank 6 through turbidity and flow condition, coagulating basin 5 add medicine processing pond as sewage.
The traditional automatic dosing system mostly adopts an adjustable stroke metering pump 2 or a variable frequency regulating dosing pump at the flow regulating end, but the products do not have the qualifications of coal safety certificate, explosion-proof certificate and the like required by underground use, but the utility model regulates by a regulating valve 7, and the regulating valve 7 can not be used at the outlet of the metering pump 2, so a buffer tank 6 is specially added in the scheme, and the chemicals automatically flow into a coagulation tank 5 by the pressure in the tank.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should be construed as the protection scope of the present invention without inventive effort.
Claims (4)
1. The utility model provides a be applicable to colliery waste water treatment in pit adds medicine flow automatic control device which characterized in that: it includes buffer tank, governing valve, flowmeter I, thoughtlessly congeals pond, turbidity appearance, flowmeter II, PLC controller, thoughtlessly congeal the pond inlet tube and be provided with turbidity appearance, flowmeter I and be connected with the PLC controller, the buffer tank is used for keeping in the liquid medicine, it passes through pipeline I and thoughtlessly congeals pond access connection, pipeline I be provided with flowmeter I and governing valve and be connected with the PLC controller.
2. The automatic dosing flow control device suitable for underground coal mine wastewater treatment according to claim 1, characterized in that: the PAC dosing tank is connected with the buffer tank through a pipeline II, and the metering pump is arranged on the pipeline II and is connected with the PLC.
3. The automatic dosing flow control device suitable for underground coal mine wastewater treatment according to claim 1, characterized in that: and a liquid level sensor is arranged in the buffer tank and is connected with the PLC.
4. The automatic dosing flow control device suitable for underground coal mine wastewater treatment according to claim 1, characterized in that: the regulating valve is an electric ball valve for mining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122069952.7U CN215559231U (en) | 2021-08-31 | 2021-08-31 | Be applicable to colliery waste water treatment in pit adds medicine flow automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122069952.7U CN215559231U (en) | 2021-08-31 | 2021-08-31 | Be applicable to colliery waste water treatment in pit adds medicine flow automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215559231U true CN215559231U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122069952.7U Active CN215559231U (en) | 2021-08-31 | 2021-08-31 | Be applicable to colliery waste water treatment in pit adds medicine flow automatic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215559231U (en) |
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2021
- 2021-08-31 CN CN202122069952.7U patent/CN215559231U/en active Active
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