CN212924671U - Harmless automatic treatment system for muddy water - Google Patents
Harmless automatic treatment system for muddy water Download PDFInfo
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- CN212924671U CN212924671U CN202021725482.4U CN202021725482U CN212924671U CN 212924671 U CN212924671 U CN 212924671U CN 202021725482 U CN202021725482 U CN 202021725482U CN 212924671 U CN212924671 U CN 212924671U
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Abstract
The utility model discloses a harmless automatic processing system of muddy water, include: the system comprises a pre-settling system, a precise filtering system, a nanofiltration system, a reverse osmosis system and an automatic control system; the pre-settling system is sequentially connected with the precision filtration system, the nanofiltration system and the reverse osmosis system; the automatic control system includes: PLC controller, power module, touch-sensitive screen, alarm device, converter, sensor, signal conditioning circuit, communication module, host computer. The utility model discloses the application has guaranteed control system's stability and easy expansibility based on PLC (programmable controller), can accomplish parameter acquisition, equipment control, graphical display, also provides friendly man-machine operation interface simultaneously, and modular design makes it can dispose in a flexible way and adapt to different network structures.
Description
Technical Field
The utility model relates to a technical field is recycled in the muddy water treatment, and more specifically the utility model relates to a muddy water innocent automatic processing system that says so.
Background
In recent years, with the development of science and technology, the mechanical equipment for tunnel construction develops rapidly, and the tunnel construction equipment has the advantages of high automation degree, labor saving, high construction speed, one-step hole formation, no influence of climate and the like, so that the tunnel construction equipment is widely applied to tunnel engineering of subways, railways, highways, municipal works, hydropower and the like.
However, in the tunnel construction process, for the underground tunneling operation, a large amount of shale dispersants and lubricating foams are usually used, so that the excavated slurry water contains a large amount of chemicals such as lead, cadmium, benzoic acid compounds and the like in addition to high suspended matters, anionic surfactants, ammonia nitrogen substances and phosphorus-containing substances.
Therefore, if the muddy water produced in the tunnel excavation process is not treated and discharged, it causes pollution to the environment and further endangers human health. At present, the treatment of the muddy water is only simple muddy water precipitation separation, the treatment is not thorough, and the treatment cannot reach the standard of recycling or discharging. Meanwhile, a large amount of construction water meeting the quality requirement is needed in the process of tunnel construction, such as slurry, synchronous mortar and concrete production. At present, manual control and manual monitoring are generally adopted for muddy water treatment, but manual operation completely depends on manual work, the reliability and the accuracy are poor, most operations depend on the experience of operators, the investment is low, the efficiency is low, and the water quality does not reach the standard. With the increasing demand for automation, the treatment of muddy water is necessarily going to be highly automated and unattended.
Therefore, how to provide a harmless automatic treatment system for muddy water becomes an important problem which is urgently solved by many tunnel construction enterprises.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses set up one set of system that can effectively handle muddy water, avoided muddy water directly to arrange the pollution that brings for the environment to the at utmost has utilized the water resource.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a harmless automatic treatment system for muddy water, comprising: the system comprises a pre-settling system, a precise filtering system, a nanofiltration system, a reverse osmosis system and an automatic control system;
the pre-settling system is sequentially connected with the precision filtration system, the nanofiltration system and the reverse osmosis system;
the automatic control system includes: the device comprises a PLC, a power supply module, a touch screen, an alarm device, a frequency converter, a sensor, a signal conditioning circuit, a communication module and an upper computer;
the power supply module, the touch screen, the alarm device, the frequency converter, the signal conditioning circuit and the communication module are peripheral circuits of the PLC and are respectively connected with the PLC; the PLC is connected with the pre-precipitation system, the precise filtration system, the nanofiltration system and the reverse osmosis system through the frequency converter; the PLC controller is in wireless communication with the upper computer through the communication module; the pre-settling system, the precise filtering system, the nanofiltration system and the reverse osmosis system are respectively connected with the signal conditioning circuit through the sensors.
Adopt above-mentioned technical scheme's beneficial effect:
this application adopts the impurity and the harmful substance of multistage method removal mud aquatic, gets rid of aquatic suspended solid and most COD through "preliminary sedimentation", then further gets rid of aquatic suspended solid through precision filter, provides service condition for receiving and straining and reverse osmosis.
Then the selective permeability characteristic of the nanofiltration membrane to ions with different valence states is utilized to realize the softening of the muddy water. The nanofiltration membrane can remove turbidity, chromaticity and organic matters while removing hardness, and the water quality of the outlet water is obviously superior to that of other softening processes. And the nanofiltration membrane softening has the advantages of no need of regeneration, no pollution, simple operation, small occupied area and the like, and has obvious social and economic benefits.
Finally, a reverse osmosis membrane is utilized to further remove the salts dissolved in the water and simultaneously remove some organic macromolecules and the like. The cross-flow filtration of the reverse osmosis membrane enables the treated feed liquid to flow through the membrane surface at a certain speed, the permeate liquid permeates the membrane from the vertical direction, and meanwhile, most of the intercepted substances are carried out of the membrane module by the concentrated solution. The cross flow filtration mode reduces the thickness of a membrane surface concentration polarization layer, and can effectively reduce membrane pollution; the separation of the solvent and the solute is realized through the reverse osmosis membrane, the residual components such as the lubricating foaming agent, the dispersing agent and the like in the water body are removed, and the water body is softened.
The utility model discloses the application has guaranteed control system's stability and easy expansibility based on PLC (programmable controller), can accomplish parameter acquisition, equipment control, graphical display, also provides friendly man-machine operation interface simultaneously, and modular design makes it can dispose in a flexible way and adapt to different network structures.
Preferably, the PLC controller includes a CPU module, a DI module, a DO module, an AI module, an AO module, and a plurality of positioning modules, and the DI module, the DO module, the AI module, the AO module, and the plurality of positioning modules are all connected to the CPU module through a backplane bus;
the power module, the touch screen, the alarm device, the frequency converter, the signal conditioning circuit and the communication module are respectively connected with the CPU module.
Preferably, the CPU module is provided with RS232 and RS485 interfaces and supports Modbus, Profibus, Ethernet and GPRS communication protocols.
Preferably, the muddy water harmless automatic processing system also comprises a lightning protection system and a grounding system.
Preferably, the motor devices of the pre-precipitation system, the precise filtration system, the nanofiltration system and the reverse osmosis system are all provided with 2 paths of DI signals: run/stop, fault indication; one route of DO signals: the apparatus is operated/stopped.
Preferably, the pre-settling system comprises: the system comprises a primary pre-settling device, a secondary pre-settling device, a tertiary pre-settling device and a dosing device;
the primary pre-settling device is sequentially connected with the secondary pre-settling device, the tertiary pre-settling device and the precise filtering system;
the dosing device comprises a dosing device A and a dosing device B; the dosing device A and the dosing device B are respectively connected with the primary pre-settling device, the secondary pre-settling device and the tertiary pre-settling device through pipelines;
the first-stage pre-settling device, the second-stage pre-settling device, the third-stage pre-settling device, the dosing device A and the dosing device B are respectively connected with the signal conditioning circuit through the sensors.
Adopt above-mentioned technical scheme's beneficial effect: the method comprises the steps of conveying slurry wastewater into a primary pre-settling device, adding A, B reagents to perform demulsification, flocculation and precipitation to primarily separate the wastewater, allowing the wastewater to stay in a primary settling tank for about 30min, allowing supernatant fluid after about 30% of suspended matters and turbidity are removed to flow into a secondary pre-settling device to continuously remove the suspended matters, allowing the supernatant fluid to enter a precision filter to further remove the suspended matters after the removal rate of the suspended matters reaches above about 80% after the supernatant fluid is subjected to tertiary pre-settling, and finally removing water ions and salt through nanofiltration and reverse osmosis to enable the water body to reach the standard.
Preferably, a first transfer water tank is connected between the precision filtration system and the nanofiltration system, and a second transfer water tank is connected between the nanofiltration system and the reverse osmosis system; the first transfer water tank is also connected with the reverse osmosis system.
Preferably, the first-stage pre-settling device, the second-stage pre-settling device, the third-stage pre-settling device, the dosing device A, the dosing device B, the first transfer water tank and the second transfer water tank are all provided with float switches, each float switch is composed of a fully-sealed glass mercury structure, and foam plastics are used as carriers outside the float switches.
Adopt above-mentioned technical scheme's beneficial effect: the water pumps in the first-stage pre-settling device, the second-stage pre-settling device, the third-stage pre-settling device, the dosing device A, the dosing device B, the first transfer water tank and the second transfer water tank are started and closed under the control of the float switch, and the float switch provides control signals according to the height of the liquid level of the water tank and controls the start and stop of each water pump.
Compared with the prior art, the utility model discloses a to the optimal combination of different technology processing unit, found a process flow who is fit for mud water innocent treatment, effectually got rid of suspended solid, turbidity, colourity and organic matter in the mud water, abundant recovery cyclic utilization waste water resource.
Meanwhile, the automatic control system is adopted to realize the acquisition of various main process parameters in the production process, the monitoring of the working condition of equipment and the process flow condition in the production process, the switching between automatic control and manual electric control, and the prompting and displaying of equipment alarm information. The device has the characteristics of accurate control, smooth wastewater treatment, high running stability, low failure rate, simple and convenient operation, time and maintenance energy saving and good treatment effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic block diagram of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1: the embodiment provides a harmless automatic processing system of muddy water, includes: the system comprises a pre-settling system, a precise filtering system, a nanofiltration system, a reverse osmosis system and an automatic control system;
the pre-settling system is sequentially connected with the precision filtration system, the nanofiltration system and the reverse osmosis system;
the automatic control system includes: the device comprises a PLC, a power supply module, a touch screen, an alarm device, a frequency converter, a sensor, a signal conditioning circuit, a communication module and an upper computer;
the power module, the touch screen, the alarm device, the frequency converter, the signal conditioning circuit and the communication module are peripheral circuits of the PLC and are respectively connected with the PLC; the PLC controller is respectively connected with the pre-precipitation system, the precise filtration system, the nanofiltration system and the reverse osmosis system through a frequency converter; the PLC controller is in wireless communication with the upper computer through the communication module; the pre-precipitation system, the precise filtering system, the nanofiltration system and the reverse osmosis system are respectively connected with the signal conditioning circuit through sensors.
In order to further improve the technical scheme, the PLC comprises a CPU module, a DI module, a DO module, an AI module, an AO module and a plurality of positioning modules, wherein the DI module, the DO module, the AI module, the AO module and the plurality of positioning modules are all connected with the CPU module through a backboard bus;
the power module, the touch screen, the alarm device, the frequency converter, the signal conditioning circuit and the communication module are respectively connected with the CPU module.
In order to further improve the technical scheme, the CPU module is provided with RS232 and RS485 interfaces and supports Modbus, Profibus, Ethernet and GPRS communication protocols.
The muddy water harmless automatic treatment system also comprises a lightning protection system and a grounding system.
In order to further improve the technical scheme, motor equipment of the pre-precipitation system, the precise filtration system, the nanofiltration system and the reverse osmosis system are provided with 2 paths of DI signals: run/stop, fault indication; one route of DO signals: the apparatus is operated/stopped.
In order to further improve the technical scheme, the pre-settling system comprises: the system comprises a primary pre-settling device, a secondary pre-settling device, a tertiary pre-settling device and a dosing device;
the primary pre-settling device is sequentially connected with the secondary pre-settling device, the tertiary pre-settling device and the precise filtering system;
the dosing device comprises a dosing device A and a dosing device B; the dosing device A and the dosing device B are respectively connected with the primary pre-settling device, the secondary pre-settling device and the tertiary pre-settling device through pipelines;
the primary pre-settling device, the secondary pre-settling device, the tertiary pre-settling device, the dosing device A and the dosing device B are respectively connected with the signal conditioning circuit through sensors.
In order to further improve the technical scheme, a first transfer water tank is connected between the precision filtration system and the nanofiltration system, and a second transfer water tank is connected between the nanofiltration system and the reverse osmosis system; the first transfer water tank is also connected with a reverse osmosis system.
In order to further improve the technical scheme, the first-stage pre-settling device, the second-stage pre-settling device, the third-stage pre-settling device, the dosing device A, the dosing device B, the first transfer water tank and the second transfer water tank are respectively provided with a float switch, the float switches are composed of a fully-sealed glass mercury structure, and the outside of the float switches is provided with foamed plastic as a carrier.
The working principle of the utility model is as follows:
step 1: adding medicaments into the primary pre-precipitation device, the secondary pre-precipitation device and the tertiary pre-precipitation device by using the medicament adding device A and the medicament adding device B, and then sequentially sending the muddy water into the primary pre-precipitation device, the secondary pre-precipitation device and the tertiary pre-precipitation device for demulsification, flocculation and precipitation to obtain pre-precipitation supernatant and residual sludge;
step 2: conveying the obtained pre-precipitation supernatant to a precise filtering device for filtering to obtain filtered supernatant and residual sludge; the part of the excess sludge and the excess sludge pre-precipitated in the step 1 are respectively conveyed to a sludge treatment system through a sludge pump;
and step 3: conveying the filtered clear liquid obtained in the step (3) to a first transfer water tank for transfer storage, and then conveying the clear liquid to a nanofiltration system for treatment to obtain a nanofiltration clear liquid;
and 4, step 4: conveying the nanofiltration clear liquid obtained in the step (4) to a second transfer water tank for transfer storage, and then conveying the nanofiltration clear liquid to a reverse osmosis system for treatment to obtain qualified water; concentrated solution output by the reverse osmosis system returns to the first transfer water tank;
and 5: and (5) using the qualified water obtained in the step (5) for equipment recycling and domestic water to finish the circular treatment of the slurry wastewater.
The PLC controller is used for the intelligent control of system, in to muddy water processing system, has simple structure, the reliability is stronger, the cost is lower and can not receive external influence' S advantage, the utility model discloses a PLC controller can adopt Siemens S7-300, and power module is the controller power supply, and power module is 24V DC power supply. The touch screen is used as a human-computer interaction interface of the control system and used for displaying system information, and an operator can complete manual control. The alarm device is used for sending out an alarm signal, the controller sends out a control signal to the frequency converter, and the frequency converter controls equipment of each system to adjust the rotating speed and control the water quantity. The equipment of each system detects signals such as pressure, flow, liquid level and the like through the sensor, and the sensor transmits the detection signals to the controller after the detection signals are processed by the signal conditioning circuit, so that the automatic control of the equipment of each system is completed.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A harmless automatic treatment system for muddy water, which is characterized by comprising: the system comprises a pre-settling system, a precise filtering system, a nanofiltration system, a reverse osmosis system and an automatic control system;
the pre-settling system is sequentially connected with the precision filtration system, the nanofiltration system and the reverse osmosis system;
the automatic control system includes: the device comprises a PLC, a power supply module, a touch screen, an alarm device, a frequency converter, a sensor, a signal conditioning circuit, a communication module and an upper computer;
the power supply module, the touch screen, the alarm device, the frequency converter, the signal conditioning circuit and the communication module are peripheral circuits of the PLC and are respectively connected with the PLC; the PLC controller is respectively connected with the pre-precipitation system, the precise filtration system, the nanofiltration system and the reverse osmosis system through the frequency converter; the PLC controller is in wireless communication with the upper computer through the communication module; the pre-settling system, the precise filtering system, the nanofiltration system and the reverse osmosis system are respectively connected with the signal conditioning circuit through the sensors.
2. The harmless automatic treatment system of muddy water according to claim 1, wherein said PLC controller comprises a CPU module, a DI module, a DO module, an AI module, an AO module and a plurality of positioning modules, said DI module, DO module, AI module, AO module and plurality of positioning modules are all connected with said CPU module through a backplane bus;
the power module, the touch screen, the alarm device, the frequency converter, the signal conditioning circuit and the communication module are respectively connected with the CPU module.
3. The harmless automatic processing system of muddy water according to claim 2, wherein said CPU module is provided with RS232 and RS485 interfaces, supporting Modbus, Profibus, Ethernet and GPRS communication protocols.
4. The muddy water harmless automatic treatment system according to claim 3, wherein said muddy water harmless automatic treatment system further comprises a lightning protection system and a grounding system.
5. The system of any one of claims 1-4, wherein the electromechanical devices of the pre-settling system, the microfiltration system, the nanofiltration system and the reverse osmosis system each have 2 DI signal paths: run/stop, fault indication; one route of DO signals: the apparatus is operated/stopped.
6. The system of claim 1, wherein the pre-settling system comprises: the system comprises a primary pre-settling device, a secondary pre-settling device, a tertiary pre-settling device and a dosing device;
the primary pre-settling device is sequentially connected with the secondary pre-settling device, the tertiary pre-settling device and the precise filtering system;
the dosing device comprises a dosing device A and a dosing device B; the dosing device A and the dosing device B are respectively connected with the primary pre-settling device, the secondary pre-settling device and the tertiary pre-settling device through pipelines;
the first-stage pre-settling device, the second-stage pre-settling device, the third-stage pre-settling device, the dosing device A and the dosing device B are respectively connected with the signal conditioning circuit through the sensors.
7. The harmless automatic treatment system of muddy water according to claim 6, wherein a first transfer water tank is connected between said precision filtration system and said nanofiltration system, and a second transfer water tank is connected between said nanofiltration system and a reverse osmosis system; the first transfer water tank is also connected with the reverse osmosis system.
8. The system of claim 7, wherein the first pre-settling device, the second pre-settling device, the third pre-settling device, the chemical adding device A, the chemical adding device B, the first transfer water tank and the second transfer water tank are all provided with float switches, each float switch is composed of a fully-sealed glass mercury structure, and the outside of each float switch is provided with foam plastic as a carrier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021725482.4U CN212924671U (en) | 2020-08-18 | 2020-08-18 | Harmless automatic treatment system for muddy water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021725482.4U CN212924671U (en) | 2020-08-18 | 2020-08-18 | Harmless automatic treatment system for muddy water |
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| CN212924671U true CN212924671U (en) | 2021-04-09 |
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| CN202021725482.4U Active CN212924671U (en) | 2020-08-18 | 2020-08-18 | Harmless automatic treatment system for muddy water |
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